chore(release): bump version to 0.5.0 and update changelog

- fix(get_tags): 使用 find_object+peel_to_commit 支持 annotated tag
- fix(changelog): insert_changelog_entry 替换覆盖逻辑，保留已有章节
- feat: parse_changelog_versions 按 semver 降序提取版本
- feat: sort_tags_by_semver 取代纯时间排序
- feat(tag --auto): 优先读 Cargo.toml/pyproject.toml，回退 commit 分析
- feat(changelog): 无 --from 时自动检测 changelog 最高已有版本
- refactor: TagInfo::version_name(), GitRepo::find_tag_by_version()

.gitignore

@@ -6,6 +6,7 @@ Cargo.lock
 
 # IDE
 .idea/
+.trae/
 .vscode/
 *.swp
 *.swo
@@ -21,3 +22,8 @@ test_output/
 
 # Config (for development)
 config.toml
+.claude/
+CLAUDE.md
+**/agents/
+.scratch/
+CONTEXT.md

AGENTS.md

@@ -0,0 +1,81 @@
+# AGENTS.md
+
+Behavioral guidelines to reduce common LLM coding mistakes. Merge with project-specific instructions as needed.
+
+**Tradeoff:** These guidelines bias toward caution over speed. For trivial tasks, use judgment.
+
+**Important:** Use Chinese for information responses and thinking; use English for searching and querying.
+
+## 1. Think Before Coding
+
+**Don't assume. Don't hide confusion. Surface tradeoffs.**
+
+Before implementing:
+- State your assumptions explicitly. If uncertain, ask.
+- If multiple interpretations exist, present them - don't pick silently.
+- If a simpler approach exists, say so. Push back when warranted.
+- If something is unclear, stop. Name what's confusing. Ask.
+
+## 2. Simplicity First
+
+**Minimum code that solves the problem. Nothing speculative.**
+
+- No features beyond what was asked.
+- No abstractions for single-use code.
+- No "flexibility" or "configurability" that wasn't requested.
+- No error handling for impossible scenarios.
+- If you write 200 lines and it could be 50, rewrite it.
+
+Ask yourself: "Would a senior engineer say this is overcomplicated?" If yes, simplify.
+
+## 3. Surgical Changes
+
+**Touch only what you must. Clean up only your own mess.**
+
+When editing existing code:
+- Don't "improve" adjacent code, comments, or formatting.
+- Don't refactor things that aren't broken.
+- Match existing style, even if you'd do it differently.
+- If you notice unrelated dead code, mention it - don't delete it.
+
+When your changes create orphans:
+- Remove imports/variables/functions that YOUR changes made unused.
+- Don't remove pre-existing dead code unless asked.
+
+The test: Every changed line should trace directly to the user's request.
+
+## 4. Goal-Driven Execution
+
+**Define success criteria. Loop until verified.**
+
+Transform tasks into verifiable goals:
+- "Add validation" → "Write tests for invalid inputs, then make them pass"
+- "Fix the bug" → "Write a test that reproduces it, then make it pass"
+- "Refactor X" → "Ensure tests pass before and after"
+
+For multi-step tasks, state a brief plan:
+```
+1. [Step] → verify: [check]
+2. [Step] → verify: [check]
+3. [Step] → verify: [check]
+```
+
+Strong success criteria let you loop independently. Weak criteria ("make it work") require constant clarification.
+
+---
+
+**These guidelines are working if:** fewer unnecessary changes in diffs, fewer rewrites due to overcomplication, and clarifying questions come before implementation rather than after mistakes.
+
+## Agent skills
+
+### Issue tracker
+
+Issues and specs live as local markdown files under `.scratch/`. See `docs/agents/issue-tracker.md`.
+
+### Triage labels
+
+The five canonical triage roles use their default label strings. See `docs/agents/triage-labels.md`.
+
+### Domain docs
+
+Single-context repo with `CONTEXT.md` and `docs/adr/` at the root. See `docs/agents/domain.md`.

CHANGELOG.md

@@ -7,33 +7,139 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-### Added
+暂无。
 
-- Initial release of QuiCommit
+## [0.5.0] - 2026-07-24
-- AI-powered commit message generation using LLM APIs (OpenAI, Anthropic) or local Ollama
+
-- Support for Conventional Commits and @commitlint formats
+### ✨ 新功能
-- Multiple Git profile management with SSH and GPG support
+- `commit` 命令新增 `.gitignore` 文件过滤：自动暂存与 `--all` 模式下自动跳过被 `.gitignore` 规则匹配的文件，并清理索引中已被忽略的已跟踪文件，暂存完成后列出被移除的文件
-- Smart tag generation with semantic version bumping
+- `tag` 命令新增 `-A, --auto` 模式：优先从 `Cargo.toml`/`pyproject.toml` 读取项目版本，回退到基于 commit 的语义化升级分析（与 `--bump` 互斥）
-- Automatic changelog generation
+- `changelog` 命令在未指定 `--from` 时，自动检测现有 changelog 中最高版本对应的 tag 作为起始点
-- Interactive CLI with beautiful prompts and previews
+- 新增 `parse_changelog_versions()`，按 semver 降序提取 changelog 中已有的版本
-- Encrypted storage for sensitive data
+- 新增 `sort_tags_by_semver()`，取代纯时间排序，按语义版本正确排序标签
-- Cross-platform support (Linux, macOS, Windows)
+
+### 🐞 错误修复
+- 修复 `get_tags()` 对 annotated tag 的解析：改用 `find_object`+`peel_to_commit` 正确取得标签指向的 commit
+- 修复 `changelog` 写入时 `insert_changelog_entry` 覆盖已有章节的问题，现保留现有内容并按版本插入新条目
+
+### 📚 文档
+- 同步更新 README（中/英文）：补充 `--think`、`tag --auto` 选项说明，移除已废弃的 `--prepend` 参数，修正 `set-llm` 的 `--base-url` 选项名
+
+### 🔧 其他变更
+- 新增 `TagInfo::version_name()` 与 `GitRepo::find_tag_by_version()` 辅助方法
+- 新增 `tests/gitignore_tests.rs`，包含 7 个测试覆盖 `.gitignore` 过滤逻辑
+
+## [0.4.0] - 2026-07-16
+
+### ✨ 新功能
+- 新增 `quicommit credential get|store|erase` 子命令，实现标准 Git credential helper 协议（[gitcredentials](https://git-scm.com/docs/gitcredentials)），可与原生 `git` 命令无缝集成
+- 新增 `host_to_service()` 主机名映射，将 github.com、gitlab.com、bitbucket.org 等常见托管平台映射为规范化服务名
+- 新增 `get_pat_for_host()` 公共 API，支持从已保存的凭据中提取 PAT 用于登录验证
+- 凭据存储复用现有基于系统密钥环的 PAT 与用户绑定逻辑，按 profile 维度管理
+
+### 🐞 错误修复
+- 移除 `keyring.rs` 中的调试 `eprintln!` 输出，避免污染 credential helper 的 stderr
+
+### 📚 文档
+- README（中/英文）新增 credential 命令使用说明
+
+### 🔧 其他变更
+- 新增 `src/lib.rs` 库目标，支持从 `tests/` 目录导入内部模块进行测试
+- `src/main.rs` 重构为使用 `quicommit::` 库导入
+- credential 命令及其子命令均使用 `#[command(hide = true)]` 隐藏，不在 `--help` 中显示
+- 新增 `tests/credential_tests.rs`，包含 52 个测试用例覆盖协议解析、帮助可见性、完整存取周期及边界场景
+
+## [0.3.1] - 2026-06-01
+
+### ✨ 新功能
+- 按文件重要性对暂存差异排序，优先处理核心变更
+- DeepSeek 新增 reasoning 推理模式支持
+- LLM 统一思考模式配置，支持显式启用/禁用思考状态
+- 新增 `thinking.rs` 思考状态管理模块
+
+### 🐞 错误修复
+- 修复 Kimi 返回信息的读取错误
+- 修复 DeepSeek 和 Kimi 流式响应的解析问题
+
+### 📚 文档
+- 新增 ROADMAP.md 项目路线图文档
+
+### 🔧 其他变更
+- LLM 模块大规模重构，所有提供商（Anthropic、DeepSeek、Kimi、Ollama、OpenAI、OpenRouter）适配流式响应处理
+- 代码格式化并优化导入顺序
+- 清理大量未使用的变量、方法及结构体警告
+- 清理构建输出日志文件
+- 重新编号 LLM 系统提示规则
+- i18n 多语言消息格式修复
+- 各命令模块（commit、tag、changelog、config、profile、init）持续优化
+
+## [0.1.11] - 2026-03-23
+
+### ✨ 新功能
+- 新增配置导出导入功能，支持加密保护
+- Profile 支持 Token 管理（PAT 等）
+- 自动生成和维护 Keep a Changelog 格式的变更日志
+- 交互式命令行界面，支持预览和确认
+
+### 🔐 安全特性
+- 敏感数据加密存储（API 密钥等）
+- 使用系统密钥环安全保存凭证
+
+### 🔧 其他变更
+- 优化 diff 截断逻辑，使用字符边界确保多字节字符安全
+- 改进配置管理器，支持修改追踪
+
+## [0.1.9] - 2026-03-06
+
+### 🐞 错误修复
+- 修复diff截断时的字符边界问题
+
+## [0.1.7] - 2026-02-14
+
+### 🐞 错误修复
+- 修复 `changelog` 命令默认覆盖文件的问题，现改为智能追加新版本条目到头部之后
+
+### 🔧 其他变更
+- 清理 `formatter.rs` 中未使用的函数（`format_commit_date`、`format_changelog_date`、`format_tag_name`、`truncate`、`format_markdown_list`、`format_changelog_section`、`format_git_config_key`）
+- 清理 `validators.rs` 中未使用的函数（`validate_ssh_key`）
+- 移除 `changelog` 命令的 `--prepend` 参数（默认行为已改为追加）
+
+## [0.1.4] - 2026-02-01
+
+### ✨ 新功能
+- 新增 `test3.txt`，支持中文输出测试
+- `generator` 模块新增 `language` 参数，可指定提交信息语言
+- `commit` 与 `tag` 命令新增自动 push 功能
+- 提交、标签及变更日志命令现支持多语言输出
+- 新增 Kimi、DeepSeek、OpenRouter 三家 LLM 提供商支持
+- 首次创建仓库，完成 0.1.0 版本基础功能
+
+### 🐞 错误修复
+- 修复 `git/commit.rs` 中的提交错误信息问题
+- 修复 Git2 错误处理逻辑（仓库打开功能暂不可用）
+- 统一代码风格（`rustfmt` 修正）
+
+### 📚 文档
+- 更新 README，补充新的安装方式与 CLI 选项说明
+- 优化 README 内容，新增 LLM 提供商介绍
+
+### 🔧 其他变更
+- 新增个人访问令牌、使用统计与配置校验功能
+- 添加 `test2.txt` 占位文件
+
+## [0.1.0] - 2026-01-30
+
+### Added
+- Initial project structure
+- Core functionality for git operations
+- LLM integration
+- Configuration management
+- CLI interface
 
 ### Features
-
 - **Commit Generation**: Automatically generate conventional commit messages from git diffs
 - **Profile Management**: Switch between multiple Git identities for different contexts
 - **Tag Management**: Create annotated tags with AI-generated release notes
 - **Changelog**: Generate and maintain changelog in Keep a Changelog format
 - **Security**: Encrypt SSH passphrases and API keys
 - **Interactive UI**: Beautiful CLI with prompts and previews
-
-## [0.1.0] - 2026-01-30
-
-### Added
-
-- Initial project structure
-- Core functionality for git operations
-- LLM integration
-- Configuration management
-- CLI interface

Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "quicommit"
-version = "0.1.0"
+version = "0.5.0"
 edition = "2024"
 authors = ["Sidney Zhang <zly@lyzhang.me>"]
 description = "A powerful Git assistant tool with AI-powered commit/tag/changelog generation"
 license = "MIT"
-repository = "https://github.com/yourusername/quicommit"
+repository = "https://git.lyz.one/SidneyZhang/QuiCommit"
 keywords = ["git", "commit", "ai", "cli", "automation"]
 categories = ["command-line-utilities", "development-tools"]
 
@@ -33,7 +33,7 @@ git2 = "0.20.3"
 which = "6.0"
 
 # HTTP client for LLM APIs
-reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
+reqwest = { version = "0.12", features = ["json", "rustls-tls", "stream"], default-features = false }
 tokio = { version = "1.35", features = ["full"] }
 
 # Error handling
@@ -57,6 +57,7 @@ sha2 = "0.10"
 hex = "0.4"
 textwrap = "0.16"
 async-trait = "0.1"
+futures-util = "0.3"
 serde_json = "1.0"
 atty = "0.2"
 
@@ -66,6 +67,9 @@ argon2 = "0.5"
 rand = "0.8"
 base64 = "0.22"
 
+# System keyring for secure API key storage
+keyring = { version = "3.6.3", features = ["apple-native", "windows-native", "sync-secret-service"] }
+
 # Interactive editor
 edit = "0.1"
 
@@ -80,11 +84,13 @@ mockall = "0.12"
 wiremock = "0.6"
 
 [profile.release]
-opt-level = 3
+opt-level = "s"
-lto = true
+lto = "thin"
 codegen-units = 1
+panic = "abort"
 strip = true
+debug = false
 
 [profile.dev]
-opt-level = 0
+opt-level = 1
 debug = true

RAODMAP.md

@@ -0,0 +1,122 @@
+# QuiCommit Roadmap
+
+## 已完成 ✅
+
+- [x] 基础 Git 操作（commit、tag、changelog）
+- [x] AI 驱动提交信息生成（Conventional Commits / commitlint 格式）
+- [x] 多 LLM 提供商支持：Ollama、OpenAI、Anthropic、Kimi、DeepSeek、OpenRouter
+- [x] 多 Git Profile 管理（SSH 密钥 + GPG 签名）
+- [x] 语义化版本自动升级与 AI 发布说明
+- [x] Keep a Changelog 格式自动生成
+- [x] 系统密钥环安全存储 API Key
+- [x] 敏感数据加密存储（AES-GCM + Argon2）
+- [x] 交互式 CLI 预览与确认
+- [x] 7 种语言国际化支持
+- [x] 配置导出/导入（支持加密保护）
+- [x] Profile Token 管理（PAT 等）
+
+---
+
+## 进行中 🚧
+
+暂无。
+
+---
+
+## 计划中 📋
+
+### 1. Git 凭证管理器
+
+将 Git 凭证管理集成到 QuiCommit 中，统一管理 HTTPS 仓库的身份认证。
+
+- [x] **Git Credential Helper 集成**
+  - 实现 `git credential-store` / `git-credential-libsecret` 等标准的 credential helper 协议
+  - 支持 `quicommit credential get|store|erase` 子命令
+  - 与系统密钥环无缝对接，复用已有的 `KeyringManager`
+
+- [x] **跨平台支持**
+  - Windows：集成 Windows Credential Manager
+  - macOS：集成 Keychain
+  - Linux：通过 Secret Service / D-Bus 对接 GNOME Keyring / KWallet
+
+- [x] **安全增强**
+  - 支持 PAT（Personal Access Token）按 scope / 有效期管理
+  - 支持凭证过期检查和自动提醒
+
+---
+
+### 2. 新增模型支持
+
+扩展 LLM 提供商和模型覆盖范围，满足更多场景和偏好。
+
+- [x] **新增 DeepSeek 最新模型**
+  - 支持 `deepseek-chat`（DeepSeek-V3）
+  - 支持 `deepseek-reasoner`（DeepSeek-R1）
+  - 支持 `deepseek-v4`
+
+- [ ] **新增国内模型提供商**
+  - 通义千问 (Qwen) — 阿里云 DashScope API
+  - 文心一言 (ERNIE) — 百度千帆 API
+  - 智谱 GLM — ChatGLM API
+  - 百川 (Baichuan) — Baichuan API
+
+- [ ] **新增国际模型提供商**
+  - Google Gemini API
+  - Mistral AI API
+  - Cohere API
+  - Groq (LPU 推理加速)
+
+- [ ] **本地模型扩展**
+  - 支持 llama.cpp 服务端（兼容 OpenAI API 格式）
+  - 支持 vLLM 部署的模型
+  - 本地模型推荐列表与一键配置向导
+
+- [ ] **模型能力适配**
+  - 不同模型的 token 限制自适应
+  - 模型特定的 prompt 模板优化
+  - 支持 function calling / tool use（用于复杂生成场景）
+
+---
+
+### 3. 生成体验优化
+
+提升 AI 生成提交信息、标签说明和变更日志时的用户体验。
+
+- [ ] **流式输出与实时反馈**
+  - [x] 支持 SSE（Server-Sent Events）流式生成
+  - [ ]终端打字机效果实时显示生成内容
+  - [ ]流式生成过程中支持 `Ctrl+C` 中断
+
+- [ ] **生成质量提升**
+  - 基于 commitlint 规则的后校验与自动修正
+  - 支持 Few-shot 示例引导（用户可自定义示例库）
+  - 生成结果的置信度评分与多候选方案
+
+- [ ] **Diff 上下文增强**
+  - 智能 diff 摘要（大改动时自动压缩关键信息）
+  - 支持 `.gitattributes` 排除/包含规则
+  - 按文件类型分组生成更精准的提交描述
+
+- [ ] **交互式编辑增强**
+  - 生成后支持内联编辑（类似 `git rebase -i` 体验）
+  - 支持重新生成指定部分（如 scope、description）
+  - 历史提交信息学习与风格适配
+
+- [ ] **批量操作支持**
+  - 批量生成多个 commit（分组暂存区变更）
+  - `--dry-run` 预览模式（只生成本地查看，不写 Git）
+
+- [ ] **性能优化**
+  - API 请求并发优化（多个模型同时生成候选）
+  - 本地缓存常用 prompt 模板
+  - 减少不必要的 diff 计算
+
+---
+
+## 长远规划 🌟
+
+- [ ] **VS Code 扩展** — 在 IDE 内直接使用 QuiCommit
+- [ ] **GitHub Action / GitLab CI 集成** — 自动化 PR 标题和描述生成
+- [ ] **团队协作** — 共享 commit 风格配置、prompt 模板库
+- [ ] **Web Dashboard** — 可视化管理多仓库的 Git 活动与 AI 生成统计
+- [ ] **插件系统** — 允许社区贡献自定义 LLM 提供商和生成策略

README.md

@@ -4,8 +4,14 @@ English | [中文文档](README_zh.md)
 
 A powerful AI-powered Git assistant for generating conventional commits, tags, and changelogs. Manage multiple Git profiles for different work contexts.
 
+[Still in early development, some features may not be complete. Feedback and contributions are welcome.]
+
+> ⚠️ **Important Notice**: QuiCommit now uses system keyring to store API keys securely. This change may cause breaking changes to your existing configuration. If you encounter issues after updating, please run `quicommit config reset --force` to reset your configuration, then reconfigure your settings.
+
 ![Rust](https://img.shields.io/badge/rust-%23000000.svg?style=for-the-badge&logo=rust&logoColor=white)
 ![License](https://img.shields.io/badge/license-MIT-blue.svg)
+![Crates.io Version](https://img.shields.io/crates/v/quicommit)
+
 
 ## Features
 
@@ -14,14 +20,26 @@ A powerful AI-powered Git assistant for generating conventional commits, tags, a
 - **Profile Management**: Manage multiple Git identities with SSH keys and GPG signing support
 - **Smart Tagging**: Semantic version bumping with AI-generated release notes
 - **Changelog Generation**: Automatic changelog generation in Keep a Changelog format
-- **Security**: Encrypt sensitive data
+- **Security**: Use system keyring to store API keys securely
 - **Interactive UI**: Beautiful CLI with previews and confirmations
+- **Multi-language Support**: Output in 7 languages (English, Chinese, Japanese, Korean, Spanish, French, German)
+- **Config Export/Import**: Backup and restore configuration with optional encryption
 
 ## Installation
 
+### Cargo Install
+
+The cargo-installed version may temporarily lag behind the source code progress.
+
 ```bash
-git clone https://github.com/yourusername/quicommit.git
+cargo install quicommit
-cd quicommit
+```
+
+### Install from Source
+
+```bash
+git clone https://git.lyz.one/SidneyZhang/QuiCommit.git
+cd QuiCommit
 cargo build --release
 cargo install --path .
 ```
@@ -45,34 +63,66 @@ quicommit commit
 # Manual commit
 quicommit commit --manual -t feat -m "add new feature"
 
-# Stage all and commit
+# Stage all and commit (skips .gitignore-matched files automatically)
 quicommit commit -a
 
 # Skip confirmation
 quicommit commit --yes
+
+# Use date-based commit message
+quicommit commit --date
+
+# Enable LLM thinking/reasoning mode for this commit
+quicommit commit --think
+
+# Push after committing
+quicommit commit --push
 ```
 
+When staging changes (auto-stage or `--all`), files matched by `.gitignore` rules are skipped and any ignored files already in the index are removed; the skipped list is printed for review.
+
 ### Create Tag
 
 ```bash
 # Auto-detect version bump
 quicommit tag
 
+# Auto-detect version from Cargo.toml/pyproject.toml, fall back to commit analysis
+quicommit tag --auto
+
 # Specify bump type
 quicommit tag --bump minor
 
 # Custom tag name
 quicommit tag -n v1.0.0
+
+# AI-generate tag message
+quicommit tag --generate
+
+# Create tag and push to remote
+quicommit tag --push
 ```
 
 ### Generate Changelog
 
 ```bash
-# Generate for unreleased changes
+# Generate for unreleased changes (auto-detects --from from the highest version in the existing changelog)
 quicommit changelog
 
 # Generate for specific version
-quicommit changelog -v 1.0.0
+quicommit changelog --version 1.0.0
+
+# Generate from a specific tag
+quicommit changelog --from v0.9.0
+
+# AI-generate changelog
+quicommit changelog --generate
+
+# Initialize new changelog file
+quicommit changelog --init
+
+# Specify output file
+quicommit changelog -o RELEASE_NOTES.md
 ```
 
 ### Manage Profiles
@@ -84,11 +134,98 @@ quicommit profile add
 # List profiles
 quicommit profile list
 
+# Show profile details
+quicommit profile show
+
 # Switch profile
 quicommit profile switch
 
+# Set default profile
+quicommit profile set-default personal
+
 # Set profile for current repo
 quicommit profile set-repo personal
+
+# Apply profile to current repo
+quicommit profile apply
+
+# Apply profile globally
+quicommit profile apply --global
+
+# Copy profile
+quicommit profile copy personal work
+
+# Edit profile
+quicommit profile edit personal
+
+# Remove profile
+quicommit profile remove old-profile
+
+# Check profile
+quicommit profile check
+
+# View usage statistics
+quicommit profile stats
+
+# Manage profile tokens
+quicommit profile token
+```
+
+### Git Credential Helper
+
+QuiCommit can act as a Git credential helper to securely store and retrieve
+Personal Access Tokens (PATs) via the system keyring. The `credential` command
+is hidden from `--help` because it is invoked automatically by Git, not by end
+users.
+
+#### Setup
+
+Register QuiCommit as a credential helper for Git:
+
+```bash
+# Use the default QuiCommit config
+git config --global credential.helper quicommit
+
+# Or specify a custom config file
+git config --global credential.helper "quicommit --config /path/to/config.toml"
+```
+
+You can also limit the helper to a specific host:
+
+```bash
+git config --global credential.https://github.com.helper quicommit
+```
+
+#### How It Works
+
+When Git needs credentials (e.g. pushing to a remote), it calls the helper
+following the [gitcredentials protocol](https://git-scm.com/docs/gitcredentials):
+
+1. **`get`** — Git asks QuiCommit for a stored PAT matching the requested host.
+   QuiCommit searches all configured profiles in the keyring and returns the
+   PAT (plus username) if found.
+2. **`store`** — After a successful authentication (e.g. you entered a PAT in
+   the Git prompt), Git asks QuiCommit to save it. The PAT is stored in the
+   system keyring, bound to the matching profile.
+3. **`erase`** — Git asks QuiCommit to delete a stored PAT for the given host.
+
+Host names are mapped to canonical service names (`github.com` → `github`,
+`gitlab.com` → `gitlab`, `bitbucket.org` → `bitbucket`, etc.). Unknown hosts
+are used as-is.
+
+#### Removing Stored Credentials
+
+To remove a stored PAT, you can either use Git's built-in mechanism:
+
+```bash
+echo "protocol=https
+host=github.com" | git credential reject
+```
+
+Or remove it via the profile token management command:
+
+```bash
+quicommit profile token
 ```
 
 ### Configure LLM
@@ -96,30 +233,68 @@ quicommit profile set-repo personal
 ```bash
 # Configure Ollama (local)
 quicommit config set-llm ollama
-quicommit config set-ollama --url http://localhost:11434 --model llama2
+quicommit config set-llm ollama --base-url http://localhost:11434 --model llama2
 
 # Configure OpenAI
 quicommit config set-llm openai
-quicommit config set-openai-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
 
 # Configure Anthropic Claude
 quicommit config set-llm anthropic
-quicommit config set-anthropic-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
 
 # Configure Kimi (Moonshot AI)
 quicommit config set-llm kimi
-quicommit config set-kimi-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
+quicommit config set-llm kimi --base-url https://api.moonshot.cn/v1 --model moonshot-v1-8k
 
 # Configure DeepSeek
 quicommit config set-llm deepseek
-quicommit config set-deepseek-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
+quicommit config set-llm deepseek --base-url https://api.deepseek.com/v1 --model deepseek-chat
 
 # Configure OpenRouter
 quicommit config set-llm openrouter
-quicommit config set-openrouter-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
+quicommit config set-llm openrouter --base-url https://openrouter.ai/api/v1 --model openai/gpt-4
+
+# Set commit format
+quicommit config set-commit-format conventional
+
+# Set version prefix
+quicommit config set-version-prefix v
+
+# Set changelog path
+quicommit config set-changelog-path CHANGELOG.md
+
+# Set output language (en, zh, ja, ko, es, fr, de)
+quicommit config set-language en
+
+# Set keep commit types in English
+quicommit config set-keep-types-english true
+
+# Set keep changelog types in English
+quicommit config set-keep-changelog-types-english true
 
 # Test LLM connection
 quicommit config test-llm
+
+# Check keyring availability
+quicommit config check-keyring
+
+# Show config file path
+quicommit config path
+
+# Export configuration (with optional encryption)
+quicommit config export -o config-backup.toml
+quicommit config export -o config-backup.enc --password
+
+# Import configuration
+quicommit config import -i config-backup.toml
+quicommit config import -i config-backup.enc --password
+
+# Reset configuration to defaults
+quicommit config reset --force
 ```
 
 ## Command Reference
@@ -132,22 +307,30 @@ quicommit config test-llm
 | `quicommit changelog` | `cl` | Generate changelog |
 | `quicommit profile` | `p` | Manage Git profiles |
 | `quicommit config` | `cfg` | Manage settings |
+| `quicommit credential` | — | Git credential helper (hidden, invoked by Git) |
 
 ### Commit Options
 
 | Option | Description |
 |--------|-------------|
-| `-t, --commit-type` | Commit type (feat, fix, etc.) |
+| `--commit-type` | Commit type (feat, fix, etc.) |
 | `-s, --scope` | Commit scope |
 | `-m, --message` | Commit description |
 | `--body` | Commit body |
-| `--breaking` | Mark as breaking change |
+| `-b, --breaking` | Mark as breaking change |
+| `-d, --date` | Use date-based commit message |
 | `--manual` | Manual input, skip AI |
-| `-a, --all` | Stage all changes |
+| `-a, --all` | Stage all changes (skips `.gitignore`-matched files) |
 | `-S, --sign` | GPG sign commit |
 | `--amend` | Amend previous commit |
 | `--dry-run` | Show without committing |
+| `--conventional` | Use Conventional Commits format |
+| `--commitlint` | Use commitlint format |
+| `--no-verify` | Skip commit message verification |
+| `-t, --think` | Enable LLM thinking/reasoning mode (overrides config) |
 | `-y, --yes` | Skip confirmation |
+| `--push` | Push after committing |
+| `--remote` | Specify remote repository (default: origin) |
 
 ### Tag Options
 
@@ -155,17 +338,40 @@ quicommit config test-llm
 |--------|-------------|
 | `-n, --name` | Tag name |
 | `-b, --bump` | Version bump (major/minor/patch) |
+| `-A, --auto` | Auto-detect version from Cargo.toml/pyproject.toml, fall back to commit analysis (conflicts with `--bump`) |
 | `-m, --message` | Tag message |
 | `-g, --generate` | AI-generate message |
 | `-S, --sign` | GPG sign tag |
-| `--lightweight` | Create lightweight tag |
+| `-l, --lightweight` | Create lightweight tag |
-| `--push` | Push to remote |
+| `-f, --force` | Force overwrite existing tag |
+| `-p, --push` | Push to remote |
+| `-r, --remote` | Specify remote repository (default: origin) |
+| `--dry-run` | Dry run |
+| `-t, --think` | Enable LLM thinking/reasoning mode (overrides config) |
+| `-y, --yes` | Skip confirmation |
+
+### Changelog Options
+
+| Option | Description |
+|--------|-------------|
+| `-o, --output` | Output file path |
+| `--version` | Generate for specific version |
+| `-f, --from` | Generate from specific tag (auto-detected from existing changelog if omitted) |
+| `-t, --to` | Generate to specific ref (default: HEAD) |
+| `-i, --init` | Initialize new changelog file |
+| `-g, --generate` | AI-generate changelog |
+| `--include-hashes` | Include commit hashes |
+| `--include-authors` | Include authors |
+| `--format` | Format (keep-a-changelog, github-releases) |
+| `--dry-run` | Dry run (output to stdout) |
+| `--think` | Enable LLM thinking/reasoning mode (overrides config) |
 | `-y, --yes` | Skip confirmation |
 
 ## Configuration File
 
 Location:
-- Linux/macOS: `~/.config/quicommit/config.toml`
+- Linux: `~/.config/quicommit/config.toml`
+- macOS: `~/Library/Application Support/quicommit/config.toml`
 - Windows: `%APPDATA%\quicommit\config.toml`
 
 ```toml
@@ -174,34 +380,41 @@ default_profile = "personal"
 
 [profiles.personal]
 name = "personal"
-user_name = "John Doe"
+user_name = "Your Name"
-user_email = "john@example.com"
+user_email = "your.email@example.com"
+description = "Personal projects"
+is_work = false
 
 [profiles.work]
 name = "work"
-user_name = "John Doe"
+user_name = "Your Name"
-user_email = "john@company.com"
+user_email = "your.name@company.com"
+description = "Work projects"
 is_work = true
-organization = "Acme Corp"
+organization = "Your Company"
+
+[profiles.work.ssh]
+private_key_path = "/home/user/.ssh/id_rsa_work"
+agent_forwarding = true
+
+[profiles.work.gpg]
+key_id = "YOUR_GPG_KEY_ID"
+program = "gpg"
+use_agent = true
 
 [llm]
 provider = "ollama"
+model = "llama2"
+# base_url = "http://localhost:11434"
 max_tokens = 500
 temperature = 0.7
 timeout = 30
-
+api_key_storage = "keyring"
-[llm.ollama]
+thinking_enabled = false
-url = "http://localhost:11434"
-model = "llama2"
-
-[llm.openai]
-model = "gpt-4"
-base_url = "https://api.openai.com/v1"
 
 [commit]
 format = "conventional"
 auto_generate = true
-max_subject_length = 100
 
 [tag]
 version_prefix = "v"
@@ -210,7 +423,10 @@ auto_generate = true
 [changelog]
 path = "CHANGELOG.md"
 auto_generate = true
-group_by_type = true
+
+[repo_profiles]
+"/path/to/work/project" = "work"
+"/path/to/personal/project" = "personal"
 ```
 
 ## Environment Variables
@@ -225,7 +441,22 @@ group_by_type = true
 
 ```bash
 # View current configuration
-quicommit config list
+quicommit config show
+
+# Edit configuration file
+quicommit config edit
+
+# Set configuration value
+quicommit config set llm.provider ollama
+
+# Get configuration value
+quicommit config get llm.provider
+
+# Set API key (stored in system keyring)
+quicommit config set-api-key YOUR_API_KEY
+
+# Delete API key from keyring
+quicommit config delete-api-key
 
 # Test LLM connection
 quicommit config test-llm
@@ -233,8 +464,22 @@ quicommit config test-llm
 # List available models
 quicommit config list-models
 
-# Edit configuration
+# Check keyring availability
-quicommit config edit
+quicommit config check-keyring
+
+# Show config file path
+quicommit config path
+
+# Export configuration (with optional encryption)
+quicommit config export -o config-backup.toml
+quicommit config export -o config-backup.enc --password
+
+# Import configuration
+quicommit config import -i config-backup.toml
+quicommit config import -i config-backup.enc --password
+
+# Reset configuration
+quicommit config reset --force
 ```
 
 ## Contributing
@@ -253,8 +498,8 @@ Contributions are welcome! Please follow these steps:
 
 ```bash
 # Clone repository
-git clone https://github.com/YOUR_USERNAME/quicommit.git
+git clone https://git.lyz.one/SidneyZhang/QuiCommit.git
-cd quicommit
+cd QuiCommit
 
 # Fetch dependencies
 cargo fetch
@@ -282,11 +527,36 @@ cargo fmt --check
 ```
 src/
 ├── commands/    # CLI command implementations
+│   ├── commit.rs
+│   ├── tag.rs
+│   ├── changelog.rs
+│   ├── profile.rs
+│   ├── config.rs
+│   └── init.rs
 ├── config/      # Configuration management
+│   ├── manager.rs
+│   └── profile.rs
 ├── generator/   # AI content generation
 ├── git/         # Git operations
+│   ├── commit.rs
+│   ├── tag.rs
+│   └── changelog.rs
 ├── llm/         # LLM provider implementations
-└── utils/       # Utility functions
+│   ├── ollama.rs
+│   ├── openai.rs
+│   ├── anthropic.rs
+│   ├── kimi.rs
+│   ├── deepseek.rs
+│   └── openrouter.rs
+├── i18n/        # Internationalization support
+│   ├── messages.rs
+│   └── translator.rs
+├── utils/       # Utility functions
+│   ├── validators.rs
+│   ├── formatter.rs
+│   ├── crypto.rs
+│   └── editor.rs
+└── main.rs      # Program entry point
 ```
 
 ## License

build.rs

@@ -1,10 +1,11 @@
 use std::env;
 
-
 fn main() {
     // Only generate completions when explicitly requested
     if env::var("GENERATE_COMPLETIONS").is_ok() {
-        println!("cargo:warning=To generate shell completions, run: cargo run --bin quicommit -- completions");
+        println!(
+            "cargo:warning=To generate shell completions, run: cargo run --bin quicommit -- completions"
+        );
     }
 
     // Rerun if build.rs changes

examples/config.example.toml

@@ -4,6 +4,13 @@
 # - macOS: ~/Library/Application Support/quicommit/config.toml
 # - Windows: %APPDATA%\quicommit\config.toml
 
+# ⚠️ IMPORTANT: Keyring Feature Update
+# QuiCommit now uses system keyring to store API keys securely.
+# This change may cause breaking changes to your existing configuration.
+# If you encounter issues after updating, please reset your configuration:
+#   quicommit config reset --force
+# Then reconfigure your settings using the CLI commands.
+
 # Configuration version (for migration)
 version = "1"
 
@@ -39,61 +46,35 @@ use_agent = true
 
 # LLM Configuration
 [llm]
-# Provider: ollama, openai, or anthropic
+# Provider: ollama, openai, anthropic, kimi, deepseek, openrouter
 provider = "ollama"
+# Model name (provider-appropriate)
+model = "llama2"
+# API base URL (optional, provider default will be used if not set)
+# base_url = "http://localhost:11434"
 max_tokens = 500
 temperature = 0.7
 timeout = 30
-
+# API key storage: keyring, config, environment
-# Ollama settings (local LLM)
+api_key_storage = "keyring"
-[llm.ollama]
+# Enable thinking/reasoning mode (deepseek, kimi, anthropic)
-url = "http://localhost:11434"
+thinking_enabled = false
-model = "llama2"
-
-# OpenAI settings
-[llm.openai]
-# api_key = "sk-..."  # Set via: quicommit config set-openai-key
-model = "gpt-4"
-base_url = "https://api.openai.com/v1"
-
-# Anthropic settings
-[llm.anthropic]
-# api_key = "sk-ant-..."  # Set via: quicommit config set-anthropic-key
-model = "claude-3-sonnet-20240229"
 
 # Commit settings
 [commit]
 # Format: conventional or commitlint
 format = "conventional"
 auto_generate = true
-allow_empty = false
-gpg_sign = false
-max_subject_length = 100
-require_scope = false
-require_body = false
-body_required_types = ["feat", "fix"]
 
 # Tag settings
 [tag]
 version_prefix = "v"
 auto_generate = true
-gpg_sign = false
-include_changelog = true
 
 # Changelog settings
 [changelog]
 path = "CHANGELOG.md"
 auto_generate = true
-format = "keep-a-changelog"  # or "github-releases"
-include_hashes = false
-include_authors = false
-group_by_type = true
-
-# Theme settings
-[theme]
-colors = true
-icons = true
-date_format = "%Y-%m-%d"
 
 # Repository-specific profile mappings
 # [repo_profiles]

readme_zh.md

@@ -4,8 +4,13 @@
 
 一款强大的AI驱动的Git助手，用于生成规范化的提交信息、标签和变更日志，并支持管理多个Git配置。
 
-![Rust](https://img.shields.io/badge/rust-%23000000.svg?logo=rust&logoColor=white)
+【目前还处在早期开发阶段，依然有一些功能未完善，欢迎反馈和贡献。】
-![LICENSE](https://img.shields.io/badge/license-MIT-blue.svg)
+
+> ⚠️ **重要提示**：QuiCommit 现在使用系统密钥环（keyring）来安全存储 API 密钥。此更改可能会对现有配置造成破坏性变更。如果在更新后遇到问题，请运行 `quicommit config reset --force` 重置配置，然后重新配置您的设置。
+
+![Rust](https://img.shields.io/badge/rust-%23000000.svg?style=for-the-badge&logo=rust&logoColor=white)
+![License](https://img.shields.io/badge/license-MIT-blue.svg)
+![Crates.io Version](https://img.shields.io/crates/v/quicommit)
 
 ## 主要功能
 
@@ -14,16 +19,26 @@
 - **多配置管理**：为不同场景管理多个Git身份，支持SSH密钥和GPG签名配置
 - **智能标签管理**：基于语义版本自动检测升级，AI生成标签信息
 - **变更日志生成**：自动生成Keep a Changelog格式的变更日志
-- **安全保护**：加密存储敏感数据
+- **安全保护**：使用系统密钥环进行安全存储
 - **交互式界面**：美观的CLI界面，支持预览和确认
+- **多语言支持**：支持7种语言输出（中文、英语、日语、韩语、西班牙语、法语、德语）
+- **配置导出导入**：备份和恢复配置，支持加密保护
 
 ## 安装
 
-目前，整体工具还在开发，并不保证各项功能准确达到既定目标。但依然十分欢迎参与贡献、反馈问题和建议。
+### cargo安装
+
+cargo安装版本可能暂时不如源码进展快速。
 
 ```bash
-git clone https://github.com/yourusername/quicommit.git
+cargo install quicommit
-cd quicommit
+```
+
+### 从源代码安装
+
+```bash
+git clone https://git.lyz.one/SidneyZhang/QuiCommit.git
+cd QuiCommit
 cargo build --release
 cargo install --path .
 ```
@@ -47,34 +62,66 @@ quicommit commit
 # 手动提交
 quicommit commit --manual -t feat -m "添加新功能"
 
-# 暂存所有文件并提交
+# 暂存所有文件并提交（自动跳过 .gitignore 匹配的文件）
 quicommit commit -a
 
 # 跳过确认直接提交
 quicommit commit --yes
+
+# 使用日期格式的提交信息
+quicommit commit --date
+
+# 为本次提交启用 LLM 思考/推理模式
+quicommit commit --think
+
+# 提交后推送到远程
+quicommit commit --push
 ```
 
+在暂存更改时（自动暂存或 `--all` 模式），会自动跳过匹配 `.gitignore` 规则的文件，并清理索引中已被忽略的已跟踪文件，最后打印出被跳过的文件列表。
+
 ### 创建标签
 
 ```bash
 # 自动检测版本升级
 quicommit tag
 
+# 从 Cargo.toml/pyproject.toml 自动检测版本，回退到基于 commit 的分析
+quicommit tag --auto
+
 # 指定版本升级类型
 quicommit tag --bump minor
 
 # 自定义标签名
 quicommit tag -n v1.0.0
+
+# AI生成标签信息
+quicommit tag --generate
+
+# 创建标签并推送到远程
+quicommit tag --push
 ```
 
 ### 生成变更日志
 
 ```bash
-# 生成未发布变更的变更日志
+# 生成未发布变更的变更日志（未指定 --from 时自动从现有 changelog 的最高版本检测）
 quicommit changelog
 
 # 为特定版本生成
-quicommit changelog -v 1.0.0
+quicommit changelog --version 1.0.0
+
+# 从指定标签生成
+quicommit changelog --from v0.9.0
+
+# AI生成变更日志
+quicommit changelog --generate
+
+# 初始化新的变更日志文件
+quicommit changelog --init
+
+# 指定输出文件
+quicommit changelog -o RELEASE_NOTES.md
 ```
 
 ### 配置管理
@@ -86,11 +133,93 @@ quicommit profile add
 # 查看配置列表
 quicommit profile list
 
+# 显示配置详情
+quicommit profile show
+
 # 切换配置
 quicommit profile switch
 
+# 设置默认配置
+quicommit profile set-default personal
+
 # 设置当前仓库的配置
 quicommit profile set-repo personal
+
+# 应用配置到当前仓库
+quicommit profile apply
+
+# 全局应用配置
+quicommit profile apply --global
+
+# 复制配置
+quicommit profile copy personal work
+
+# 编辑配置
+quicommit profile edit personal
+
+# 删除配置
+quicommit profile remove old-profile
+
+# 检查配置
+quicommit profile check
+
+# 查看使用统计
+quicommit profile stats
+
+# 管理配置的令牌
+quicommit profile token
+```
+
+### Git 凭据助手（Credential Helper）
+
+QuiCommit 可以作为 Git 凭据助手，通过系统密钥环安全地存储和读取个人访问令牌（PAT）。
+`credential` 命令在 `--help` 中是隐藏的，因为它由 Git 自动调用，无需用户手动执行。
+
+#### 配置方法
+
+将 QuiCommit 注册为 Git 凭据助手：
+
+```bash
+# 使用默认的 QuiCommit 配置
+git config --global credential.helper quicommit
+
+# 或指定自定义配置文件路径
+git config --global credential.helper "quicommit --config /path/to/config.toml"
+```
+
+也可以仅对特定主机启用：
+
+```bash
+git config --global credential.https://github.com.helper quicommit
+```
+
+#### 工作原理
+
+当 Git 需要凭据（例如推送到远程仓库）时，会按照
+[gitcredentials 协议](https://git-scm.com/docs/gitcredentials) 调用助手：
+
+1. **`get`** — Git 向 QuiCommit 请求与目标主机匹配的已存储 PAT。
+   QuiCommit 在所有已配置的 profile 中搜索密钥环，找到则返回 PAT（及用户名）。
+2. **`store`** — 认证成功后（例如你在 Git 提示中输入了 PAT），Git 要求
+   QuiCommit 保存该凭据。PAT 将存入系统密钥环，并与匹配的 profile 绑定。
+3. **`erase`** — Git 要求 QuiCommit 删除指定主机的已存储 PAT。
+
+主机名会被映射为规范化的服务名（`github.com` → `github`、`gitlab.com` →
+`gitlab`、`bitbucket.org` → `bitbucket` 等），未知主机则原样使用。
+
+#### 删除已存储的凭据
+
+可以通过 Git 内置机制删除已存储的 PAT：
+
+```bash
+echo "protocol=https
+host=github.com" | git credential reject
+```
+
+也可以通过 profile 令牌管理命令删除：
+
+```bash
+quicommit profile token
 ```
 
 ### LLM配置
@@ -98,30 +227,68 @@ quicommit profile set-repo personal
 ```bash
 # 配置Ollama（本地）
 quicommit config set-llm ollama
-quicommit config set-ollama --url http://localhost:11434 --model llama2
+quicommit config set-llm ollama --base-url http://localhost:11434 --model llama2
 
 # 配置OpenAI
 quicommit config set-llm openai
-quicommit config set-openai-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
 
 # 配置Anthropic Claude
 quicommit config set-llm anthropic
-quicommit config set-anthropic-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
 
 # 配置Kimi
 quicommit config set-llm kimi
-quicommit config set-kimi-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
+quicommit config set-llm kimi --base-url https://api.moonshot.cn/v1 --model moonshot-v1-8k
 
 # 配置DeepSeek
 quicommit config set-llm deepseek
-quicommit config set-deepseek-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
+quicommit config set-llm deepseek --base-url https://api.deepseek.com/v1 --model deepseek-chat
 
 # 配置OpenRouter
 quicommit config set-llm openrouter
-quicommit config set-openrouter-key YOUR_API_KEY
+quicommit config set-api-key YOUR_API_KEY
+quicommit config set-llm openrouter --base-url https://openrouter.ai/api/v1 --model openai/gpt-4
+
+# 设置提交格式
+quicommit config set-commit-format conventional
+
+# 设置版本前缀
+quicommit config set-version-prefix v
+
+# 设置变更日志路径
+quicommit config set-changelog-path CHANGELOG.md
+
+# 设置输出语言（zh, en, ja, ko, es, fr, de）
+quicommit config set-language zh
+
+# 设置保持提交类型为英文
+quicommit config set-keep-types-english true
+
+# 设置保持变更日志类型为英文
+quicommit config set-keep-changelog-types-english true
 
 # 测试LLM连接
 quicommit config test-llm
+
+# 检查密钥环可用性
+quicommit config check-keyring
+
+# 显示配置文件路径
+quicommit config path
+
+# 导出配置（支持加密）
+quicommit config export -o config-backup.toml
+quicommit config export -o config-backup.enc --password
+
+# 导入配置
+quicommit config import -i config-backup.toml
+quicommit config import -i config-backup.enc --password
+
+# 重置配置为默认值
+quicommit config reset --force
 ```
 
 ## 命令参考
@@ -134,22 +301,30 @@ quicommit config test-llm
 | `quicommit changelog` | `cl` | 生成变更日志 |
 | `quicommit profile` | `p` | 管理Git配置 |
 | `quicommit config` | `cfg` | 管理应用配置 |
+| `quicommit credential` | — | Git凭据助手（隐藏，由Git调用） |
 
 ### commit命令选项
 
 | 选项 | 说明 |
 |------|------|
-| `-t, --commit-type` | 提交类型（feat、fix等） |
+| `--commit-type` | 提交类型（feat、fix等） |
 | `-s, --scope` | 提交范围 |
 | `-m, --message` | 提交描述 |
 | `--body` | 提交正文 |
-| `--breaking` | 标记为破坏性变更 |
+| `-b, --breaking` | 标记为破坏性变更 |
+| `-d, --date` | 使用日期格式的提交信息 |
 | `--manual` | 手动输入，跳过AI生成 |
-| `-a, --all` | 暂存所有更改 |
+| `-a, --all` | 暂存所有更改（自动跳过 `.gitignore` 匹配的文件） |
 | `-S, --sign` | GPG签名提交 |
 | `--amend` | 修改上一次提交 |
 | `--dry-run` | 试运行，不实际提交 |
+| `--conventional` | 使用Conventional Commits格式 |
+| `--commitlint` | 使用commitlint格式 |
+| `--no-verify` | 不验证提交信息 |
+| `-t, --think` | 启用 LLM 思考/推理模式（覆盖配置） |
 | `-y, --yes` | 跳过确认提示 |
+| `--push` | 提交后推送到远程 |
+| `--remote` | 指定远程仓库（默认：origin） |
 
 ### tag命令选项
 
@@ -157,18 +332,41 @@ quicommit config test-llm
 |------|------|
 | `-n, --name` | 标签名称 |
 | `-b, --bump` | 版本升级类型（major/minor/patch） |
+| `-A, --auto` | 从 Cargo.toml/pyproject.toml 自动检测版本，回退到基于 commit 的分析（与 `--bump` 互斥） |
 | `-m, --message` | 标签信息 |
 | `-g, --generate` | AI生成标签信息 |
 | `-S, --sign` | GPG签名标签 |
-| `--lightweight` | 创建轻量标签 |
+| `-l, --lightweight` | 创建轻量标签 |
-| `--push` | 推送到远程 |
+| `-f, --force` | 强制覆盖已存在的标签 |
+| `-p, --push` | 推送到远程 |
+| `-r, --remote` | 指定远程仓库（默认：origin） |
+| `--dry-run` | 试运行 |
+| `-t, --think` | 启用 LLM 思考/推理模式（覆盖配置） |
+| `-y, --yes` | 跳过确认提示 |
+
+### changelog命令选项
+
+| 选项 | 说明 |
+|------|------|
+| `-o, --output` | 输出文件路径 |
+| `--version` | 为特定版本生成 |
+| `-f, --from` | 从指定标签生成（未指定时自动从现有 changelog 的最高版本检测） |
+| `-t, --to` | 生成到指定引用（默认：HEAD） |
+| `-i, --init` | 初始化新的变更日志文件 |
+| `-g, --generate` | AI生成变更日志 |
+| `--include-hashes` | 包含提交哈希 |
+| `--include-authors` | 包含作者信息 |
+| `--format` | 格式（keep-a-changelog、github-releases） |
+| `--dry-run` | 试运行（输出到stdout） |
+| `--think` | 启用 LLM 思考/推理模式（覆盖配置） |
 | `-y, --yes` | 跳过确认提示 |
 
 ## 配置文件
 
 配置文件位置：
-- Linux/macOS: `~/.config/quicommit/config.toml`
+- Linux: `~/.config/quicommit/config.toml`
-- Windows: `%APPDATA%\quicommit\config.toml`
+- macOS: `~/Library/Application Support/quicommit/config.toml`
+- Windows: `%APPDATA%\quicommit/config.toml`
 
 ```toml
 version = "1"
@@ -176,34 +374,41 @@ default_profile = "personal"
 
 [profiles.personal]
 name = "personal"
-user_name = "John Doe"
+user_name = "Your Name"
-user_email = "john@example.com"
+user_email = "your.email@example.com"
+description = "个人项目"
+is_work = false
 
 [profiles.work]
 name = "work"
-user_name = "John Doe"
+user_name = "Your Name"
-user_email = "john@company.com"
+user_email = "your.name@company.com"
+description = "工作项目"
 is_work = true
-organization = "Acme Corp"
+organization = "Your Company"
+
+[profiles.work.ssh]
+private_key_path = "/home/user/.ssh/id_rsa_work"
+agent_forwarding = true
+
+[profiles.work.gpg]
+key_id = "YOUR_GPG_KEY_ID"
+program = "gpg"
+use_agent = true
 
 [llm]
 provider = "ollama"
+model = "llama2"
+# base_url = "http://localhost:11434"
 max_tokens = 500
 temperature = 0.7
 timeout = 30
-
+api_key_storage = "keyring"
-[llm.ollama]
+thinking_enabled = false
-url = "http://localhost:11434"
-model = "llama2"
-
-[llm.openai]
-model = "gpt-4"
-base_url = "https://api.openai.com/v1"
 
 [commit]
 format = "conventional"
 auto_generate = true
-max_subject_length = 100
 
 [tag]
 version_prefix = "v"
@@ -212,7 +417,10 @@ auto_generate = true
 [changelog]
 path = "CHANGELOG.md"
 auto_generate = true
-group_by_type = true
+
+[repo_profiles]
+"/path/to/work/project" = "work"
+"/path/to/personal/project" = "personal"
 ```
 
 ## 环境变量
@@ -227,7 +435,22 @@ group_by_type = true
 
 ```bash
 # 查看当前配置
-quicommit config list
+quicommit config show
+
+# 编辑配置文件
+quicommit config edit
+
+# 设置配置值
+quicommit config set llm.provider ollama
+
+# 获取配置值
+quicommit config get llm.provider
+
+# 设置API密钥（存储在系统密钥环中）
+quicommit config set-api-key YOUR_API_KEY
+
+# 从密钥环删除API密钥
+quicommit config delete-api-key
 
 # 测试LLM连接
 quicommit config test-llm
@@ -235,8 +458,22 @@ quicommit config test-llm
 # 列出可用模型
 quicommit config list-models
 
-# 编辑配置文件
+# 检查密钥环可用性
-quicommit config edit
+quicommit config check-keyring
+
+# 显示配置文件路径
+quicommit config path
+
+# 导出配置（支持加密）
+quicommit config export -o config-backup.toml
+quicommit config export -o config-backup.enc --password
+
+# 导入配置
+quicommit config import -i config-backup.toml
+quicommit config import -i config-backup.enc --password
+
+# 重置配置
+quicommit config reset --force
 ```
 
 ## 贡献
@@ -255,8 +492,8 @@ quicommit config edit
 
 ```bash
 # 克隆仓库
-git clone https://github.com/YOUR_USERNAME/quicommit.git
+git clone https://git.lyz.one/SidneyZhang/QuiCommit.git
-cd quicommit
+cd QuiCommit
 
 # 安装依赖
 cargo fetch
@@ -284,11 +521,36 @@ cargo fmt --check
 ```
 src/
 ├── commands/    # CLI命令实现
+│   ├── commit.rs
+│   ├── tag.rs
+│   ├── changelog.rs
+│   ├── profile.rs
+│   ├── config.rs
+│   └── init.rs
 ├── config/      # 配置管理
+│   ├── manager.rs
+│   └── profile.rs
 ├── generator/   # AI内容生成
 ├── git/         # Git操作封装
+│   ├── commit.rs
+│   ├── tag.rs
+│   └── changelog.rs
 ├── llm/         # LLM提供商实现
-└── utils/       # 工具函数
+│   ├── ollama.rs
+│   ├── openai.rs
+│   ├── anthropic.rs
+│   ├── kimi.rs
+│   ├── deepseek.rs
+│   └── openrouter.rs
+├── i18n/        # 国际化支持
+│   ├── messages.rs
+│   └── translator.rs
+├── utils/       # 工具函数
+│   ├── validators.rs
+│   ├── formatter.rs
+│   ├── crypto.rs
+│   └── editor.rs
+└── main.rs      # 程序入口
 ```
 
 ## 许可证

src/commands/changelog.rs

@@ -1,24 +1,27 @@
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 use chrono::Utc;
 use clap::Parser;
 use colored::Colorize;
 use dialoguer::{Confirm, Input};
 use std::path::PathBuf;
 
-use crate::config::manager::ConfigManager;
+use crate::config::{Language, manager::ConfigManager};
 use crate::generator::ContentGenerator;
+use crate::git::GitRepo;
 use crate::git::find_repo;
-use crate::git::{changelog::*, CommitInfo, GitRepo};
+use crate::git::{CommitInfo, changelog::*};
+use crate::i18n::{Messages, translate_changelog_category};
 
 /// Generate changelog
 #[derive(Parser)]
+#[command(disable_version_flag = true, disable_help_flag = false)]
 pub struct ChangelogCommand {
     /// Output file path
     #[arg(short, long)]
     output: Option<PathBuf>,
 
     /// Version to generate changelog for
-    #[arg(short, long)]
+    #[arg(long)]
     version: Option<String>,
 
     /// Generate from specific tag
@@ -37,10 +40,6 @@ pub struct ChangelogCommand {
     #[arg(short, long)]
     generate: bool,
 
-    /// Prepend to existing changelog
-    #[arg(short, long)]
-    prepend: bool,
-
     /// Include commit hashes
     #[arg(long)]
     include_hashes: bool,
@@ -50,38 +49,50 @@ pub struct ChangelogCommand {
     include_authors: bool,
 
     /// Format (keep-a-changelog, github-releases)
-    #[arg(short, long)]
+    #[arg(long)]
     format: Option<String>,
 
     /// Dry run (output to stdout)
     #[arg(long)]
     dry_run: bool,
 
+    /// Enable thinking mode for this changelog (override config)
+    #[arg(long)]
+    think: bool,
+
     /// Skip interactive prompts
     #[arg(short = 'y', long)]
     yes: bool,
 }
 
 impl ChangelogCommand {
-    pub async fn execute(&self) -> Result<()> {
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
         let repo = find_repo(std::env::current_dir()?.as_path())?;
-        let manager = ConfigManager::new()?;
+        let manager = if let Some(ref path) = config_path {
+            ConfigManager::with_path(path)?
+        } else {
+            ConfigManager::new()?
+        };
         let config = manager.config();
+        let language = manager.get_language().unwrap_or(Language::English);
+        let messages = Messages::new(language);
 
         // Initialize changelog if requested
         if self.init {
-            let path = self.output.as_ref()
+            let path = self
-                .map(|p| p.clone())
+                .output
+                .clone()
                 .unwrap_or_else(|| PathBuf::from(&config.changelog.path));
 
             init_changelog(&path)?;
-            println!("{} Initialized changelog at {:?}", "✓".green(), path);
+            println!("{}", messages.initialized_changelog(&format!("{:?}", path)));
             return Ok(());
         }
 
         // Determine output path
-        let output_path = self.output.as_ref()
+        let output_path = self
-            .map(|p| p.clone())
+            .output
+            .clone()
             .unwrap_or_else(|| PathBuf::from(&config.changelog.path));
 
         // Determine format
@@ -90,7 +101,10 @@ impl ChangelogCommand {
             Some("keep") | Some("keep-a-changelog") => ChangelogFormat::KeepAChangelog,
             Some("custom") => ChangelogFormat::Custom,
             None => ChangelogFormat::KeepAChangelog,
-            Some(f) => bail!("Unknown format: {}. Use: keep-a-changelog, github-releases", f),
+            Some(f) => bail!(
+                "Unknown format: {}. Use: keep-a-changelog, github-releases",
+                f
+            ),
         };
 
         // Get version
@@ -98,28 +112,31 @@ impl ChangelogCommand {
             v.clone()
         } else if !self.yes {
             Input::new()
-                .with_prompt("Version")
+                .with_prompt(messages.version())
-                .default("Unreleased".to_string())
+                .default(messages.unreleased().to_string())
                 .interact_text()?
         } else {
-            "Unreleased".to_string()
+            messages.unreleased().to_string()
         };
 
         // Get commits
-        println!("{} Fetching commits...", "→".blue());
+        println!("{}", messages.fetching_commits());
-        let commits = generate_from_history(&repo, self.from.as_deref(), Some(&self.to))?;
+
+        // Determine from_tag: use explicit --from, or auto-detect from changelog
+        let from_tag = self.resolve_from_tag(&repo, &output_path, &messages);
+        let commits = generate_from_history(&repo, from_tag.as_deref(), Some(&self.to))?;
 
         if commits.is_empty() {
-            bail!("No commits found in the specified range");
+            bail!("{}", messages.no_commits_found());
         }
 
-        println!("{} Found {} commits", "✓".green(), commits.len());
+        println!("{}", messages.found_commits(commits.len()));
 
         // Generate changelog
         let changelog = if self.generate || (config.changelog.auto_generate && !self.yes) {
-            self.generate_with_ai(&repo, &version, &commits).await?
+            self.generate_with_ai(&version, &commits, &messages).await?
         } else {
-            self.generate_with_template(format, &version, &commits)?
+            self.generate_with_template(format, &version, &commits, language)?
         };
 
         // Output or write
@@ -133,7 +150,7 @@ impl ChangelogCommand {
         // Preview
         if !self.yes {
             println!("\n{}", "─".repeat(60));
-            println!("{}", "Changelog preview:".bold());
+            println!("{}", messages.changelog_preview().bold());
             println!("{}", "─".repeat(60));
             // Show first 20 lines
             let preview: String = changelog.lines().take(20).collect::<Vec<_>>().join("\n");
@@ -144,43 +161,72 @@ impl ChangelogCommand {
             println!("{}", "─".repeat(60));
 
             let confirm = Confirm::new()
-                .with_prompt(&format!("Write to {:?}?", output_path))
+                .with_prompt(messages.write_to_file(&format!("{:?}", output_path)))
                 .default(true)
                 .interact()?;
 
             if !confirm {
-                println!("{}", "Cancelled.".yellow());
+                println!("{}", messages.cancelled().yellow());
                 return Ok(());
             }
         }
 
-        // Write to file
+        // Write to file (always prepend new entry before existing versions)
-        if self.prepend && output_path.exists() {
+        if output_path.exists() {
             let existing = std::fs::read_to_string(&output_path)?;
-            let new_content = format!("{}\n{}", changelog, existing);
+            let new_content = if existing.is_empty() {
+                format!("{}{}", CHANGELOG_HEADER, changelog)
+            } else {
+                insert_changelog_entry(&existing, &changelog)
+            };
             std::fs::write(&output_path, new_content)?;
         } else {
-            std::fs::write(&output_path, changelog)?;
+            let content = format!("{}{}", CHANGELOG_HEADER, changelog);
+            std::fs::write(&output_path, content)?;
         }
 
-        println!("{} Changelog written to {:?}", "✓".green(), output_path);
+        println!("{} {:?}", messages.changelog_written(), output_path);
 
         Ok(())
     }
 
-    async fn generate_with_ai(
+    fn resolve_from_tag(
         &self,
         repo: &GitRepo,
+        output_path: &PathBuf,
+        messages: &Messages,
+    ) -> Option<String> {
+        // Explicit --from always wins
+        if self.from.is_some() {
+            return self.from.clone();
+        }
+
+        // Auto-detect: find highest version already in changelog
+        let existing = std::fs::read_to_string(output_path).ok()?;
+        let versions = parse_changelog_versions(&existing);
+        let highest = versions.first()?;
+
+        // Match highest version to a git tag
+        let tag = repo.find_tag_by_version(highest)?;
+        println!("  {}: {}", messages.version(), tag.name);
+        Some(tag.name)
+    }
+
+    async fn generate_with_ai(
+        &self,
         version: &str,
         commits: &[CommitInfo],
+        messages: &Messages,
     ) -> Result<String> {
         let manager = ConfigManager::new()?;
-        let config = manager.config();
+        let language = manager.get_language().unwrap_or(Language::English);
 
-        println!("{} AI is generating changelog...", "🤖");
+        println!("{}", messages.ai_generating_changelog());
 
-        let generator = ContentGenerator::new(&config.llm).await?;
+        let generator = ContentGenerator::new_with_think(&manager, self.think, None).await?;
-        generator.generate_changelog_entry(version, commits).await
+        generator
+            .generate_changelog_entry(version, commits, language)
+            .await
     }
 
     fn generate_with_template(
@@ -188,12 +234,43 @@ impl ChangelogCommand {
         format: ChangelogFormat,
         version: &str,
         commits: &[CommitInfo],
+        language: Language,
     ) -> Result<String> {
+        let manager = ConfigManager::new()?;
+
         let generator = ChangelogGenerator::new()
             .format(format)
             .include_hashes(self.include_hashes)
             .include_authors(self.include_authors);
 
-        generator.generate(version, Utc::now(), commits)
+        let changelog = generator.generate(version, Utc::now(), commits)?;
+
+        // Translate changelog categories if configured
+        if !manager.keep_changelog_types_english() {
+            Ok(self.translate_changelog_categories(&changelog, language))
+        } else {
+            Ok(changelog)
+        }
+    }
+
+    fn translate_changelog_categories(&self, changelog: &str, language: Language) -> String {
+        changelog
+            .lines()
+            .map(|line| {
+                if line.starts_with("## ") || line.starts_with("### ") {
+                    let category = line.trim_start_matches("## ").trim_start_matches("### ");
+                    let translated_category =
+                        translate_changelog_category(category, language, false);
+                    if line.starts_with("## ") {
+                        format!("## {}", translated_category)
+                    } else {
+                        format!("### {}", translated_category)
+                    }
+                } else {
+                    line.to_string()
+                }
+            })
+            .collect::<Vec<_>>()
+            .join("\n")
     }
 }

src/commands/commit.rs

@@ -1,20 +1,22 @@
-use anyhow::{bail, Context, Result};
+use anyhow::{Context, Result, bail};
 use clap::Parser;
 use colored::Colorize;
 use dialoguer::{Confirm, Input, Select};
+use std::path::PathBuf;
 
-use crate::config::manager::ConfigManager;
 use crate::config::CommitFormat;
+use crate::config::{Language, manager::ConfigManager};
 use crate::generator::ContentGenerator;
-use crate::git::{find_repo, GitRepo};
 use crate::git::commit::{CommitBuilder, create_date_commit_message};
+use crate::git::{GitRepo, find_repo};
+use crate::i18n::Messages;
 use crate::utils::validators::get_commit_types;
 
 /// Generate and execute conventional commits
 #[derive(Parser)]
 pub struct CommitCommand {
     /// Commit type
-    #[arg(short, long)]
+    #[arg(long)]
     commit_type: Option<String>,
 
     /// Commit scope
@@ -38,7 +40,7 @@ pub struct CommitCommand {
     date: bool,
 
     /// Manual input (skip AI generation)
-    #[arg(short, long)]
+    #[arg(long)]
     manual: bool,
 
     /// Sign the commit
@@ -69,26 +71,44 @@ pub struct CommitCommand {
     #[arg(long)]
     no_verify: bool,
 
+    /// Enable thinking mode for this commit (override config)
+    #[arg(short = 't', long)]
+    think: bool,
+
     /// Skip interactive prompts
     #[arg(short = 'y', long)]
     yes: bool,
+
+    /// Push after committing
+    #[arg(long)]
+    push: bool,
+
+    /// Remote to push to
+    #[arg(long, default_value = "origin")]
+    remote: String,
 }
 
 impl CommitCommand {
-    pub async fn execute(&self) -> Result<()> {
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
         // Find git repository
         let repo = find_repo(std::env::current_dir()?.as_path())?;
 
+        // Load configuration
+        let manager = if let Some(ref path) = config_path {
+            ConfigManager::with_path(path)?
+        } else {
+            ConfigManager::new()?
+        };
+        let config = manager.config();
+        let language = manager.get_language().unwrap_or(Language::English);
+        let messages = Messages::new(language);
+
         // Check for changes
         let status = repo.status_summary()?;
         if status.clean && !self.amend {
-            bail!("No changes to commit. Working tree is clean.");
+            bail!("{}", messages.no_changes());
         }
 
-        // Load configuration
-        let manager = ConfigManager::new()?;
-        let config = manager.config();
-
         // Determine commit format
         let format = if self.conventional {
             CommitFormat::Conventional
@@ -98,10 +118,41 @@ impl CommitCommand {
             config.commit.format
         };
 
+        // Auto-add if no files are staged and there are unstaged/untracked changes
+        if status.staged == 0 && (status.unstaged > 0 || status.untracked > 0) && !self.all {
+            println!("{}", messages.auto_stage_changes().yellow());
+            let removed = repo.stage_all()?;
+            println!("{}", messages.staged_all().green());
+            if !removed.is_empty() {
+                println!(
+                    "{}",
+                    format!("Removed {} ignored files from staging:", removed.len()).yellow()
+                );
+                for file in &removed {
+                    println!("  • {}", file);
+                }
+            }
+
+            // Re-check status after staging to ensure changes are detected
+            let new_status = repo.status_summary()?;
+            if new_status.staged == 0 {
+                bail!("Failed to stage changes. Please try running 'git add -A' manually.");
+            }
+        }
+
         // Stage all if requested
         if self.all {
-            repo.stage_all()?;
+            let removed = repo.stage_all()?;
-            println!("{}", "✓ Staged all changes".green());
+            println!("{}", messages.staged_all().green());
+            if !removed.is_empty() {
+                println!(
+                    "{}",
+                    format!("Removed {} ignored files from staging:", removed.len()).yellow()
+                );
+                for file in &removed {
+                    println!("  • {}", file);
+                }
+            }
         }
 
         // Generate or build commit message
@@ -111,12 +162,12 @@ impl CommitCommand {
         } else if self.manual || self.message.is_some() {
             // Manual commit
             self.create_manual_commit(format)?
-        } else if config.commit.auto_generate && !self.yes {
+        } else if config.commit.auto_generate {
             // AI-generated commit
-            self.generate_commit(&repo, format).await?
+            self.generate_commit(&repo, format, &messages).await?
         } else {
             // Interactive commit creation
-            self.create_interactive_commit(format).await?
+            self.create_interactive_commit(format, &messages).await?
         };
 
         // Validate message
@@ -132,39 +183,74 @@ impl CommitCommand {
         // Show commit preview
         if !self.yes {
             println!("\n{}", "─".repeat(60));
-            println!("{}", "Commit preview:".bold());
+            println!("{}", messages.commit_preview().bold());
             println!("{}", "─".repeat(60));
             println!("{}", commit_message);
             println!("{}", "─".repeat(60));
 
             let confirm = Confirm::new()
-                .with_prompt("Do you want to proceed with this commit?")
+                .with_prompt(messages.proceed_commit())
                 .default(true)
                 .interact()?;
 
             if !confirm {
-                println!("{}", "Commit cancelled.".yellow());
+                println!("{}", messages.commit_cancelled().yellow());
                 return Ok(());
             }
         }
 
-        if self.dry_run {
-            println!("\n{}", "Dry run - commit not created.".yellow());
-            return Ok(());
-        }
-
-        // Execute commit
         let result = if self.amend {
+            if self.dry_run {
+                println!(
+                    "\n{} {}",
+                    messages.dry_run(),
+                    "- commit not amended.".yellow()
+                );
+                return Ok(());
+            }
             self.amend_commit(&repo, &commit_message)?;
             None
         } else {
-            Some(repo.commit(&commit_message, self.sign)?)
+            if self.dry_run {
+                println!(
+                    "\n{} {}",
+                    messages.dry_run(),
+                    "- commit not created.".yellow()
+                );
+                return Ok(());
+            }
+            CommitBuilder::new()
+                .message(&commit_message)
+                .sign(self.sign)
+                .execute(&repo)?
         };
 
         if let Some(commit_oid) = result {
-            println!("{} {}", "✓ Created commit".green().bold(), commit_oid.to_string()[..8].to_string().cyan());
+            println!(
+                "{} {}",
+                messages.commit_created().green().bold(),
+                commit_oid.to_string()[..8].to_string().cyan()
+            );
         } else {
-            println!("{} {}", "✓ Amended commit".green().bold(), "successfully");
+            println!("{} successfully", messages.commit_amended().green().bold());
+        }
+
+        // Push after commit if requested or ask user
+        if self.push {
+            println!("\n{}", messages.pushing_commit(&self.remote));
+            repo.push(&self.remote, "HEAD")?;
+            println!("{}", messages.pushed_commit(&self.remote));
+        } else if !self.yes && !self.dry_run {
+            let should_push = Confirm::new()
+                .with_prompt(messages.push_after_commit())
+                .default(false)
+                .interact()?;
+
+            if should_push {
+                println!("\n{}", messages.pushing_commit(&self.remote));
+                repo.push(&self.remote, "HEAD")?;
+                println!("{}", messages.pushed_commit(&self.remote));
+            }
         }
 
         Ok(())
@@ -176,11 +262,22 @@ impl CommitCommand {
     }
 
     fn create_manual_commit(&self, format: CommitFormat) -> Result<String> {
-        let commit_type = self.commit_type.clone()
+        let description = self.message.clone().ok_or_else(|| {
-            .ok_or_else(|| anyhow::anyhow!("Commit type required for manual commit. Use -t <type>"))?;
+            anyhow::anyhow!("Description required for manual commit. Use -m <message>")
+        })?;
 
-        let description = self.message.clone()
+        // Try to extract commit type from message if not provided
-            .ok_or_else(|| anyhow::anyhow!("Description required for manual commit. Use -m <message>"))?;
+        let commit_type = if let Some(ref ct) = self.commit_type {
+            ct.clone()
+        } else {
+            // Parse from conventional commit format: "type: description"
+            description
+                .split(':')
+                .next()
+                .unwrap_or("feat")
+                .trim()
+                .to_string()
+        };
 
         let builder = CommitBuilder::new()
             .commit_type(commit_type)
@@ -193,61 +290,79 @@ impl CommitCommand {
         builder.build_message()
     }
 
-    async fn generate_commit(&self, repo: &GitRepo, format: CommitFormat) -> Result<String> {
+    async fn generate_commit(
+        &self,
+        repo: &GitRepo,
+        format: CommitFormat,
+        messages: &Messages,
+    ) -> Result<String> {
         let manager = ConfigManager::new()?;
-        let config = manager.config();
 
-        // Check if LLM is configured
+        let template = manager
-        let generator = ContentGenerator::new(&config.llm).await
+            .default_profile()
+            .and_then(|p| p.commit_template().map(|t| t.to_string()));
+
+        let generator = ContentGenerator::new_with_think(&manager, self.think, template)
+            .await
             .context("Failed to initialize LLM. Use --manual for manual commit.")?;
 
-        println!("{} AI is analyzing your changes...", "🤖".to_string());
+        println!("{}", messages.ai_analyzing());
+
+        let language = manager.get_language().unwrap_or(Language::English);
 
         let generated = if self.yes {
-            generator.generate_commit_from_repo(repo, format).await?
+            generator
+                .generate_commit_from_repo(repo, format, language)
+                .await?
         } else {
-            generator.generate_commit_interactive(repo, format).await?
+            generator
+                .generate_commit_interactive(repo, format, language)
+                .await?
         };
 
         Ok(generated.to_conventional())
     }
 
-    async fn create_interactive_commit(&self, format: CommitFormat) -> Result<String> {
+    async fn create_interactive_commit(
+        &self,
+        format: CommitFormat,
+        messages: &Messages,
+    ) -> Result<String> {
         let types = get_commit_types(format == CommitFormat::Commitlint);
 
         // Select type
         let type_idx = Select::new()
-            .with_prompt("Select commit type")
+            .with_prompt(messages.select_commit_type())
             .items(types)
             .interact()?;
         let commit_type = types[type_idx].to_string();
 
         // Enter scope (optional)
         let scope: String = Input::new()
-            .with_prompt("Scope (optional, press Enter to skip)")
+            .with_prompt(messages.scope_optional())
             .allow_empty(true)
             .interact_text()?;
         let scope = if scope.is_empty() { None } else { Some(scope) };
 
         // Enter description
         let description: String = Input::new()
-            .with_prompt("Description")
+            .with_prompt(messages.description())
             .interact_text()?;
 
         // Breaking change
         let breaking = Confirm::new()
-            .with_prompt("Is this a breaking change?")
+            .with_prompt(messages.breaking_change())
             .default(false)
             .interact()?;
 
         // Add body
         let add_body = Confirm::new()
-            .with_prompt("Add body to commit?")
+            .with_prompt(messages.add_body())
             .default(false)
             .interact()?;
 
         let body = if add_body {
-            let body_text = crate::utils::editor::edit_content("Enter commit body...")?;
+            let body_text = crate::utils::editor::edit_content(messages.enter_commit_body())?;
             if body_text.trim().is_empty() {
                 None
             } else {
@@ -288,34 +403,50 @@ impl CommitCommand {
             .output()?;
 
         if !output.status.success() {
+            let stdout = String::from_utf8_lossy(&output.stdout);
             let stderr = String::from_utf8_lossy(&output.stderr);
-            bail!("Failed to amend commit: {}", stderr);
+
+            let error_msg = if stderr.is_empty() {
+                if stdout.is_empty() {
+                    "GPG signing failed. Please check:\n\
+                     1. GPG signing key is configured (git config --get user.signingkey)\n\
+                     2. GPG agent is running\n\
+                     3. You can sign commits manually (try: git commit --amend -S)"
+                        .to_string()
+                } else {
+                    stdout.to_string()
+                }
+            } else {
+                stderr.to_string()
+            };
+
+            bail!("Failed to amend commit: {}", error_msg);
         }
 
         Ok(())
     }
 }
 
-// Helper trait for optional builder methods
+// // Helper trait for optional builder methods
-trait CommitBuilderExt {
+// trait CommitBuilderExt {
-    fn scope_opt(self, scope: Option<String>) -> Self;
+//     fn scope_opt(self, scope: Option<String>) -> Self;
-    fn body_opt(self, body: Option<String>) -> Self;
+//     fn body_opt(self, body: Option<String>) -> Self;
-}
+// }
 
-impl CommitBuilderExt for CommitBuilder {
+// impl CommitBuilderExt for CommitBuilder {
-    fn scope_opt(self, scope: Option<String>) -> Self {
+//     fn scope_opt(self, scope: Option<String>) -> Self {
-        if let Some(s) = scope {
+//         if let Some(s) = scope {
-            self.scope(s)
+//             self.scope(s)
-        } else {
+//         } else {
-            self
+//             self
-        }
+//         }
-    }
+//     }
 
-    fn body_opt(self, body: Option<String>) -> Self {
+//     fn body_opt(self, body: Option<String>) -> Self {
-        if let Some(b) = body {
+//         if let Some(b) = body {
-            self.body(b)
+//             self.body(b)
-        } else {
+//         } else {
-            self
+//             self
-        }
+//         }
-    }
+//     }
-}
+// }

src/commands/credential.rs

@@ -0,0 +1,458 @@
+use anyhow::{Context, Result};
+use clap::{Parser, Subcommand};
+use std::io::{self, BufRead, Write};
+use std::path::PathBuf;
+
+use crate::config::manager::ConfigManager;
+use crate::config::{TokenConfig, TokenType};
+
+/// Git credential helper command.
+///
+/// Implements the git credential helper protocol
+/// (https://git-scm.com/docs/gitcredentials). Intended to be invoked by git
+/// via `credential.helper` configuration, not by end users. Hidden from the
+/// main help output.
+#[derive(Parser)]
+#[command(hide = true)]
+pub struct CredentialCommand {
+    #[command(subcommand)]
+    command: CredentialSubcommand,
+}
+
+#[derive(Subcommand)]
+enum CredentialSubcommand {
+    /// Read attributes on stdin and output credentials on stdout.
+    #[command(hide = true)]
+    Get,
+    /// Read attributes (including password) on stdin and store them.
+    #[command(hide = true)]
+    Store,
+    /// Read attributes on stdin and erase any matching stored credentials.
+    #[command(hide = true)]
+    Erase,
+}
+
+impl CredentialCommand {
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
+        match &self.command {
+            CredentialSubcommand::Get => Self::get(config_path),
+            CredentialSubcommand::Store => Self::store(config_path),
+            CredentialSubcommand::Erase => Self::erase(config_path),
+        }
+    }
+
+    fn get_manager(config_path: &Option<PathBuf>) -> Result<ConfigManager> {
+        match config_path {
+            Some(path) => ConfigManager::with_path(path),
+            None => ConfigManager::new(),
+        }
+    }
+
+    /// `git credential get`: look up a PAT for the requested host and emit it
+    /// on stdout following the git credential helper protocol.
+    fn get(config_path: Option<PathBuf>) -> Result<()> {
+        let attrs = CredentialAttributes::from_stdin()?;
+
+        let host = match attrs.host.as_deref() {
+            Some(h) if !h.is_empty() => h,
+            _ => return Ok(()),
+        };
+        let service = host_to_service(host);
+
+        let manager = match Self::get_manager(&config_path) {
+            Ok(m) => m,
+            Err(_) => return Ok(()),
+        };
+
+        let (profile_name, pat) = match find_pat_for_service(&manager, &service) {
+            Some(tuple) => tuple,
+            None => return Ok(()),
+        };
+
+        // Prefer a git-supplied username; fall back to the profile's user_name.
+        let username = attrs.username.clone().or_else(|| {
+            manager
+                .get_profile(&profile_name)
+                .map(|p| p.user_name.clone())
+        });
+
+        let output = CredentialAttributes {
+            protocol: attrs.protocol.clone(),
+            host: attrs.host.clone(),
+            path: attrs.path.clone(),
+            username,
+            password: Some(pat),
+        };
+        output.to_stdout()?;
+        Ok(())
+    }
+
+    /// `git credential store`: persist the PAT provided by git using the
+    /// existing keyring-backed storage, associated with a matching profile.
+    fn store(config_path: Option<PathBuf>) -> Result<()> {
+        let attrs = CredentialAttributes::from_stdin()?;
+
+        let host = match attrs.host.as_deref() {
+            Some(h) if !h.is_empty() => h,
+            _ => return Ok(()),
+        };
+        let service = host_to_service(host);
+
+        let password = match attrs.password.as_deref() {
+            Some(p) if !p.is_empty() => p,
+            _ => return Ok(()),
+        };
+
+        let mut manager = Self::get_manager(&config_path)?;
+
+        let profile_name = match find_profile_for_store(&manager, attrs.username.as_deref()) {
+            Some(name) => name,
+            None => return Ok(()),
+        };
+
+        // Store PAT in keyring using the existing profile-bound logic.
+        if let Err(e) = manager.store_pat_for_profile(&profile_name, &service, password) {
+            eprintln!("[quicommit credential] failed to store PAT: {}", e);
+            return Ok(());
+        }
+
+        // Register the token in the profile config if not already present.
+        let already_has = manager
+            .get_profile(&profile_name)
+            .map(|p| p.tokens.contains_key(&service))
+            .unwrap_or(false);
+        if !already_has {
+            let _ = manager.add_token_to_profile(
+                &profile_name,
+                service.clone(),
+                TokenConfig::new(TokenType::Personal),
+            );
+        }
+
+        manager.save()?;
+        Ok(())
+    }
+
+    /// `git credential erase`: remove any PAT stored for the requested host
+    /// from the keyring and the associated profile config entries.
+    fn erase(config_path: Option<PathBuf>) -> Result<()> {
+        let attrs = CredentialAttributes::from_stdin()?;
+
+        let host = match attrs.host.as_deref() {
+            Some(h) if !h.is_empty() => h,
+            _ => return Ok(()),
+        };
+        let service = host_to_service(host);
+
+        let mut manager = Self::get_manager(&config_path)?;
+
+        let profile_names: Vec<String> = manager
+            .list_profiles()
+            .into_iter()
+            .filter(|name| {
+                manager
+                    .get_profile(name)
+                    .map(|p| p.tokens.contains_key(&service))
+                    .unwrap_or(false)
+            })
+            .cloned()
+            .collect();
+
+        for name in &profile_names {
+            if let Err(e) = manager.remove_token_from_profile(name, &service) {
+                eprintln!(
+                    "[quicommit credential] failed to erase PAT for '{}': {}",
+                    name, e
+                );
+            }
+        }
+
+        manager.save()?;
+        Ok(())
+    }
+}
+
+/// Credential attributes exchanged with git via stdin/stdout following the
+/// git credential helper protocol (`key=value`, one per line, blank line ends).
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+pub struct CredentialAttributes {
+    pub protocol: Option<String>,
+    pub host: Option<String>,
+    pub path: Option<String>,
+    pub username: Option<String>,
+    pub password: Option<String>,
+}
+
+impl CredentialAttributes {
+    /// Read attributes from stdin following the git credential helper protocol.
+    pub fn from_stdin() -> Result<Self> {
+        let stdin = io::stdin();
+        let mut attrs = Self::default();
+        for line in stdin.lock().lines() {
+            let line =
+                line.context("Failed to read credential attributes from stdin")?;
+            if line.is_empty() {
+                break;
+            }
+            if let Some((key, value)) = line.split_once('=') {
+                match key {
+                    "protocol" => attrs.protocol = Some(value.to_string()),
+                    "host" => attrs.host = Some(value.to_string()),
+                    "path" => attrs.path = Some(value.to_string()),
+                    "username" => attrs.username = Some(value.to_string()),
+                    "password" => attrs.password = Some(value.to_string()),
+                    _ => {} // ignore unknown keys
+                }
+            }
+        }
+        Ok(attrs)
+    }
+
+    /// Write attributes to stdout following the git credential helper protocol.
+    pub fn to_stdout(&self) -> Result<()> {
+        let stdout = io::stdout();
+        let mut handle = stdout.lock();
+        if let Some(ref v) = self.protocol {
+            writeln!(handle, "protocol={}", v)?;
+        }
+        if let Some(ref v) = self.host {
+            writeln!(handle, "host={}", v)?;
+        }
+        if let Some(ref v) = self.path {
+            writeln!(handle, "path={}", v)?;
+        }
+        if let Some(ref v) = self.username {
+            writeln!(handle, "username={}", v)?;
+        }
+        if let Some(ref v) = self.password {
+            writeln!(handle, "password={}", v)?;
+        }
+        writeln!(handle)?; // blank line terminates the attribute list
+        handle.flush()?;
+        Ok(())
+    }
+
+    /// Parse attributes from a text block following the git credential helper
+    /// protocol. Intended for testing and non-stdin input handling.
+    pub fn parse_str(input: &str) -> Self {
+        let mut attrs = Self::default();
+        for line in input.lines() {
+            if line.is_empty() {
+                break;
+            }
+            if let Some((key, value)) = line.split_once('=') {
+                match key {
+                    "protocol" => attrs.protocol = Some(value.to_string()),
+                    "host" => attrs.host = Some(value.to_string()),
+                    "path" => attrs.path = Some(value.to_string()),
+                    "username" => attrs.username = Some(value.to_string()),
+                    "password" => attrs.password = Some(value.to_string()),
+                    _ => {}
+                }
+            }
+        }
+        attrs
+    }
+
+    /// Serialize attributes to a string following the git credential helper
+    /// protocol. Intended for testing and non-stdout output handling.
+    pub fn serialize(&self) -> String {
+        let mut out = String::new();
+        if let Some(ref v) = self.protocol {
+            out.push_str(&format!("protocol={}\n", v));
+        }
+        if let Some(ref v) = self.host {
+            out.push_str(&format!("host={}\n", v));
+        }
+        if let Some(ref v) = self.path {
+            out.push_str(&format!("path={}\n", v));
+        }
+        if let Some(ref v) = self.username {
+            out.push_str(&format!("username={}\n", v));
+        }
+        if let Some(ref v) = self.password {
+            out.push_str(&format!("password={}\n", v));
+        }
+        out.push('\n');
+        out
+    }
+}
+
+/// Map a git host to a service name used by the keyring-backed PAT storage.
+///
+/// Common git hosting services are mapped to short canonical names. Unknown
+/// hosts are used as-is (lowercased, trailing slash trimmed).
+pub fn host_to_service(host: &str) -> String {
+    let host = host.to_lowercase();
+    let host = host.trim_end_matches('/');
+    match host {
+        "github.com" | "www.github.com" => "github".to_string(),
+        "gitlab.com" | "www.gitlab.com" => "gitlab".to_string(),
+        "bitbucket.org" | "www.bitbucket.org" => "bitbucket".to_string(),
+        "codeberg.org" | "www.codeberg.org" => "codeberg".to_string(),
+        "gitea.com" | "www.gitea.com" => "gitea".to_string(),
+        "gitee.com" | "www.gitee.com" => "gitee".to_string(),
+        other => other.to_string(),
+    }
+}
+
+/// Search all profiles for one that has a PAT stored for the given service.
+/// Returns the profile name and the PAT value.
+fn find_pat_for_service(manager: &ConfigManager, service: &str) -> Option<(String, String)> {
+    for profile_name in manager.list_profiles() {
+        if manager.has_pat_for_profile(profile_name, service) {
+            if let Ok(Some(pat)) = manager.get_pat_for_profile(profile_name, service) {
+                return Some((profile_name.clone(), pat));
+            }
+        }
+    }
+    None
+}
+
+/// Determine which profile to use when storing a credential.
+///
+/// Prefers a profile whose `user_name` or `user_email` matches the
+/// git-supplied username; otherwise falls back to the default profile.
+fn find_profile_for_store(
+    manager: &ConfigManager,
+    username: Option<&str>,
+) -> Option<String> {
+    if let Some(username) = username {
+        for name in manager.list_profiles() {
+            if let Some(profile) = manager.get_profile(name) {
+                if profile.user_name == username || profile.user_email == username {
+                    return Some(name.clone());
+                }
+            }
+        }
+    }
+    manager.default_profile_name().cloned()
+}
+
+/// Extract a PAT for the given host from saved credentials across all profiles.
+///
+/// This is intended for use by other parts of the application (e.g. when
+/// verifying access to a git hosting service) and searches every configured
+/// profile for a stored PAT matching the host.
+pub fn get_pat_for_host(host: &str) -> Result<Option<String>> {
+    let manager = ConfigManager::new()?;
+    let service = host_to_service(host);
+    Ok(find_pat_for_service(&manager, &service).map(|(_, pat)| pat))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_host_to_service_known_hosts() {
+        assert_eq!(host_to_service("github.com"), "github");
+        assert_eq!(host_to_service("www.github.com"), "github");
+        assert_eq!(host_to_service("gitlab.com"), "gitlab");
+        assert_eq!(host_to_service("bitbucket.org"), "bitbucket");
+        assert_eq!(host_to_service("codeberg.org"), "codeberg");
+        assert_eq!(host_to_service("gitea.com"), "gitea");
+        assert_eq!(host_to_service("gitee.com"), "gitee");
+    }
+
+    #[test]
+    fn test_host_to_service_case_insensitive() {
+        assert_eq!(host_to_service("GitHub.Com"), "github");
+        assert_eq!(host_to_service("GITLAB.COM"), "gitlab");
+    }
+
+    #[test]
+    fn test_host_to_service_trailing_slash() {
+        assert_eq!(host_to_service("github.com/"), "github");
+        assert_eq!(host_to_service("gitlab.com//"), "gitlab");
+    }
+
+    #[test]
+    fn test_host_to_service_unknown_host() {
+        assert_eq!(host_to_service("example.com"), "example.com");
+        assert_eq!(host_to_service("git.internal.corp"), "git.internal.corp");
+    }
+
+    #[test]
+    fn test_credential_attributes_parse_basic() {
+        let input = "protocol=https\nhost=github.com\nusername=octocat\npassword=ghp_token123\n\n";
+        let attrs = CredentialAttributes::parse_str(input);
+        assert_eq!(attrs.protocol.as_deref(), Some("https"));
+        assert_eq!(attrs.host.as_deref(), Some("github.com"));
+        assert_eq!(attrs.username.as_deref(), Some("octocat"));
+        assert_eq!(attrs.password.as_deref(), Some("ghp_token123"));
+        assert!(attrs.path.is_none());
+    }
+
+    #[test]
+    fn test_credential_attributes_parse_with_path() {
+        let input = "protocol=https\nhost=github.com\npath=owner/repo.git\n\n";
+        let attrs = CredentialAttributes::parse_str(input);
+        assert_eq!(attrs.path.as_deref(), Some("owner/repo.git"));
+    }
+
+    #[test]
+    fn test_credential_attributes_parse_empty() {
+        let attrs = CredentialAttributes::parse_str("");
+        assert!(attrs.protocol.is_none());
+        assert!(attrs.host.is_none());
+        assert!(attrs.username.is_none());
+        assert!(attrs.password.is_none());
+    }
+
+    #[test]
+    fn test_credential_attributes_parse_ignores_unknown_keys() {
+        let input = "protocol=https\nhost=github.com\nunknown=value\nfoo=bar\n\n";
+        let attrs = CredentialAttributes::parse_str(input);
+        assert_eq!(attrs.protocol.as_deref(), Some("https"));
+        assert_eq!(attrs.host.as_deref(), Some("github.com"));
+    }
+
+    #[test]
+    fn test_credential_attributes_parse_stops_at_blank_line() {
+        let input = "protocol=https\nhost=github.com\n\npassword=should_be_ignored\n";
+        let attrs = CredentialAttributes::parse_str(input);
+        assert_eq!(attrs.protocol.as_deref(), Some("https"));
+        assert_eq!(attrs.host.as_deref(), Some("github.com"));
+        assert!(attrs.password.is_none());
+    }
+
+    #[test]
+    fn test_credential_attributes_serialize_roundtrip() {
+        let attrs = CredentialAttributes {
+            protocol: Some("https".to_string()),
+            host: Some("github.com".to_string()),
+            path: None,
+            username: Some("octocat".to_string()),
+            password: Some("ghp_token".to_string()),
+        };
+        let serialized = attrs.serialize();
+        let reparsed = CredentialAttributes::parse_str(&serialized);
+        assert_eq!(attrs, reparsed);
+    }
+
+    #[test]
+    fn test_credential_attributes_serialize_includes_blank_line() {
+        let attrs = CredentialAttributes {
+            protocol: Some("https".to_string()),
+            host: Some("github.com".to_string()),
+            path: None,
+            username: None,
+            password: None,
+        };
+        let serialized = attrs.serialize();
+        assert!(serialized.ends_with("\n\n"));
+        assert!(serialized.contains("protocol=https\n"));
+        assert!(serialized.contains("host=github.com\n"));
+    }
+
+    #[test]
+    fn test_credential_attributes_default() {
+        let attrs = CredentialAttributes::default();
+        assert!(attrs.protocol.is_none());
+        assert!(attrs.host.is_none());
+        assert!(attrs.path.is_none());
+        assert!(attrs.username.is_none());
+        assert!(attrs.password.is_none());
+    }
+}

src/commands/init.rs

@@ -2,10 +2,13 @@ use anyhow::Result;
 use clap::Parser;
 use colored::Colorize;
 use dialoguer::{Confirm, Input, Select};
+use std::path::PathBuf;
 
-use crate::config::{GitProfile};
 use crate::config::manager::ConfigManager;
 use crate::config::profile::{GpgConfig, SshConfig};
+use crate::config::{GitProfile, Language};
+use crate::i18n::Messages;
+use crate::utils::keyring::{get_default_model, get_supported_providers, provider_needs_api_key};
 use crate::utils::validators::validate_email;
 
 /// Initialize quicommit configuration
@@ -21,12 +24,13 @@ pub struct InitCommand {
 }
 
 impl InitCommand {
-    pub async fn execute(&self) -> Result<()> {
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
-        println!("{}", "🚀 Initializing QuiCommit...".bold().cyan());
+        let messages = Messages::new(Language::English);
+        println!("{}", messages.initializing().bold().cyan());
 
-        let config_path = crate::config::AppConfig::default_path()?;
+        let config_path =
+            config_path.unwrap_or_else(|| crate::config::AppConfig::default_path().unwrap());
 
-        // Check if config already exists
         if config_path.exists() && !self.reset {
             if !self.yes {
                 let overwrite = Confirm::new()
@@ -38,28 +42,36 @@ impl InitCommand {
                     println!("{}", "Initialization cancelled.".yellow());
                     return Ok(());
                 }
+            } else {
+                println!(
+                    "{}",
+                    "Configuration already exists. Use --reset to overwrite.".yellow()
+                );
+                return Ok(());
             }
         }
 
-        let mut manager = if self.reset {
+        if let Some(parent) = config_path.parent() {
-            ConfigManager::new()?
+            std::fs::create_dir_all(parent)
-        } else {
+                .map_err(|e| anyhow::anyhow!("Failed to create config directory: {}", e))?;
-            ConfigManager::new().or_else(|_| Ok::<_, anyhow::Error>(ConfigManager::default()))?
+        }
-        };
+
+        let mut manager = ConfigManager::with_path_fresh(&config_path)?;
 
         if self.yes {
-            // Quick setup with defaults
             self.quick_setup(&mut manager).await?;
         } else {
-            // Interactive setup
             self.interactive_setup(&mut manager).await?;
         }
 
         manager.save()?;
 
-        println!("{}", "✅ QuiCommit initialized successfully!".bold().green());
+        let language = manager.get_language().unwrap_or(Language::English);
-        println!("\nConfig file: {}", config_path.display());
+        let messages = Messages::new(language);
-        println!("\nNext steps:");
+
+        println!("{}", messages.init_success().bold().green());
+        println!("\n{}: {}", messages.config_file(), config_path.display());
+        println!("\n{}:", messages.next_steps());
         println!("  1. Create a profile: {}", "quicommit profile add".cyan());
         println!("  2. Configure LLM: {}", "quicommit config set-llm".cyan());
         println!("  3. Start committing: {}", "quicommit commit".cyan());
@@ -68,108 +80,121 @@ impl InitCommand {
     }
 
     async fn quick_setup(&self, manager: &mut ConfigManager) -> Result<()> {
-        // Try to get git user info
         let git_config = git2::Config::open_default()?;
 
-        let user_name = git_config.get_string("user.name").unwrap_or_else(|_| "User".to_string());
+        let user_name = git_config
-        let user_email = git_config.get_string("user.email").unwrap_or_else(|_| "user@example.com".to_string());
+            .get_string("user.name")
+            .unwrap_or_else(|_| "User".to_string());
+        let user_email = git_config
+            .get_string("user.email")
+            .unwrap_or_else(|_| "user@example.com".to_string());
 
-        let profile = GitProfile::new(
+        let profile = GitProfile::new("default".to_string(), user_name, user_email);
-            "default".to_string(),
-            user_name,
-            user_email,
-        );
 
         manager.add_profile("default".to_string(), profile)?;
         manager.set_default_profile(Some("default".to_string()))?;
 
-        // Set default LLM to Ollama
         manager.set_llm_provider("ollama".to_string());
 
         Ok(())
     }
 
     async fn interactive_setup(&self, manager: &mut ConfigManager) -> Result<()> {
-        println!("\n{}", "Let's set up your first profile:".bold());
+        let messages = Messages::new(Language::English);
+        println!("\n{}", messages.setup_profile().bold());
+
+        println!("\n{}", messages.select_output_language().bold());
+        let languages = [
+            Language::English,
+            Language::Chinese,
+            Language::Japanese,
+            Language::Korean,
+            Language::Spanish,
+            Language::French,
+            Language::German,
+        ];
+        let language_names: Vec<String> = languages
+            .iter()
+            .map(|l| l.display_name().to_string())
+            .collect();
+        let language_idx = Select::new().items(&language_names).default(0).interact()?;
+
+        let selected_language = languages[language_idx];
+        manager.set_output_language(selected_language.to_code().to_string());
+
+        let messages = Messages::new(selected_language);
 
-        // Profile name
         let profile_name: String = Input::new()
-            .with_prompt("Profile name")
+            .with_prompt(messages.profile_name())
             .default("personal".to_string())
             .interact_text()?;
 
-        // User info
         let git_config = git2::Config::open_default().ok();
 
-        let default_name = git_config.as_ref()
+        let default_name = git_config
+            .as_ref()
             .and_then(|c| c.get_string("user.name").ok())
             .unwrap_or_default();
 
-        let default_email = git_config.as_ref()
+        let default_email = git_config
+            .as_ref()
             .and_then(|c| c.get_string("user.email").ok())
             .unwrap_or_default();
 
         let user_name: String = Input::new()
-            .with_prompt("Git user name")
+            .with_prompt(messages.git_user_name())
             .default(default_name)
             .interact_text()?;
 
         let user_email: String = Input::new()
-            .with_prompt("Git user email")
+            .with_prompt(messages.git_user_email())
             .default(default_email)
-            .validate_with(|input: &String| {
+            .validate_with(|input: &String| validate_email(input).map_err(|e| e.to_string()))
-                validate_email(input).map_err(|e| e.to_string())
-            })
             .interact_text()?;
 
         let description: String = Input::new()
-            .with_prompt("Profile description (optional)")
+            .with_prompt(messages.profile_description())
             .allow_empty(true)
             .interact_text()?;
 
         let is_work = Confirm::new()
-            .with_prompt("Is this a work profile?")
+            .with_prompt(messages.is_work_profile())
             .default(false)
             .interact()?;
 
         let organization = if is_work {
-            Some(Input::new()
+            Some(
-                .with_prompt("Organization/Company name")
+                Input::new()
-                .interact_text()?)
+                    .with_prompt(messages.organization_name())
+                    .interact_text()?,
+            )
         } else {
             None
         };
 
-        // SSH configuration
         let setup_ssh = Confirm::new()
-            .with_prompt("Configure SSH key?")
+            .with_prompt(messages.configure_ssh())
             .default(false)
             .interact()?;
 
         let ssh_config = if setup_ssh {
-            Some(self.setup_ssh_interactive().await?)
+            Some(self.setup_ssh_interactive(&messages).await?)
         } else {
             None
         };
 
-        // GPG configuration
         let setup_gpg = Confirm::new()
-            .with_prompt("Configure GPG signing?")
+            .with_prompt(messages.configure_gpg())
             .default(false)
             .interact()?;
 
         let gpg_config = if setup_gpg {
-            Some(self.setup_gpg_interactive().await?)
+            Some(self.setup_gpg_interactive(&messages).await?)
         } else {
             None
         };
 
-        // Create profile
+        let mut profile = GitProfile::new(profile_name.clone(), user_name, user_email);
-        let mut profile = GitProfile::new(
-            profile_name.clone(),
-            user_name,
-            user_email,
-        );
 
         if !description.is_empty() {
             profile.description = Some(description);
@@ -183,40 +208,118 @@ impl InitCommand {
         manager.add_profile(profile_name.clone(), profile)?;
         manager.set_default_profile(Some(profile_name))?;
 
-        // LLM provider selection
+        println!("\n{}", messages.select_llm_provider().bold());
-        println!("\n{}", "Select your preferred LLM provider:".bold());
+
-        let providers = vec!["Ollama (local)", "OpenAI", "Anthropic Claude"];
+        let provider_display_names = vec![
+            "Ollama (local)",
+            "OpenAI",
+            "Anthropic Claude",
+            "Kimi (Moonshot AI)",
+            "DeepSeek",
+            "OpenRouter",
+        ];
+
         let provider_idx = Select::new()
-            .items(&providers)
+            .items(&provider_display_names)
             .default(0)
             .interact()?;
 
-        let provider = match provider_idx {
+        let providers = get_supported_providers();
-            0 => "ollama",
+        let provider = providers[provider_idx].to_string();
-            1 => "openai",
+
-            2 => "anthropic",
+        let keyring = manager.keyring();
-            _ => "ollama",
+        let keyring_available = keyring.is_available();
+
+        if !keyring_available {
+            println!(
+                "\n{}",
+                "⚠ Keyring is not available on this system.".yellow()
+            );
+            println!("{}", keyring.get_status_message().yellow());
+        }
+
+        let api_key = if provider_needs_api_key(&provider) {
+            let env_key = std::env::var("QUICOMMIT_API_KEY")
+                .or_else(|_| {
+                    std::env::var(format!("QUICOMMIT_{}_API_KEY", provider.to_uppercase()))
+                })
+                .ok();
+
+            if let Some(_key) = env_key {
+                println!(
+                    "\n{} {}",
+                    "✓".green(),
+                    "Found API key in environment variable.".green()
+                );
+                None
+            } else if keyring_available {
+                let prompt = match provider.as_str() {
+                    "openai" => messages.openai_api_key(),
+                    "anthropic" => messages.anthropic_api_key(),
+                    "kimi" => messages.kimi_api_key(),
+                    "deepseek" => messages.deepseek_api_key(),
+                    "openrouter" => messages.openrouter_api_key(),
+                    _ => "API Key",
+                };
+
+                let key: String = Input::new().with_prompt(prompt).interact_text()?;
+                Some(key)
+            } else {
+                println!(
+                    "\n{}",
+                    "Please set the QUICOMMIT_API_KEY environment variable.".yellow()
+                );
+                None
+            }
+        } else {
+            None
         };
 
-        manager.set_llm_provider(provider.to_string());
+        let default_model = get_default_model(&provider);
+        let model: String = Input::new()
+            .with_prompt("Model name")
+            .default(default_model.to_string())
+            .interact_text()?;
 
-        // Configure API key if needed
+        let base_url: Option<String> = if provider == "ollama" {
-        if provider == "openai" {
+            let url: String = Input::new()
-            let api_key: String = Input::new()
+                .with_prompt("Ollama server URL")
-                .with_prompt("OpenAI API key")
+                .default("http://localhost:11434".to_string())
                 .interact_text()?;
-            manager.set_openai_api_key(api_key);
+            Some(url)
-        } else if provider == "anthropic" {
+        } else {
-            let api_key: String = Input::new()
+            let use_custom_url = Confirm::new()
-                .with_prompt("Anthropic API key")
+                .with_prompt("Use custom API base URL?")
-                .interact_text()?;
+                .default(false)
-            manager.set_anthropic_api_key(api_key);
+                .interact()?;
+
+            if use_custom_url {
+                let url: String = Input::new().with_prompt("Base URL").interact_text()?;
+                Some(url)
+            } else {
+                None
+            }
+        };
+
+        manager.set_llm_provider(provider.clone());
+        manager.set_llm_model(model);
+        manager.set_llm_base_url(base_url);
+
+        if let Some(key) = api_key
+            && provider_needs_api_key(&provider)
+        {
+            manager.set_api_key(&key)?;
+            println!(
+                "\n{} {}",
+                "✓".green(),
+                "API key stored securely in system keyring.".green()
+            );
         }
 
         Ok(())
     }
 
-    async fn setup_ssh_interactive(&self) -> Result<SshConfig> {
+    async fn setup_ssh_interactive(&self, messages: &Messages) -> Result<SshConfig> {
         use std::path::PathBuf;
 
         let ssh_dir = dirs::home_dir()
@@ -224,38 +327,74 @@ impl InitCommand {
             .unwrap_or_else(|| PathBuf::from("~/.ssh"));
 
         let key_path: String = Input::new()
-            .with_prompt("SSH private key path")
+            .with_prompt(messages.ssh_private_key_path())
             .default(ssh_dir.join("id_rsa").display().to_string())
             .interact_text()?;
 
+        let pub_key_path: String = Input::new()
+            .with_prompt("SSH public key path (optional, leave empty to auto-detect)")
+            .default(ssh_dir.join("id_rsa.pub").display().to_string())
+            .allow_empty(true)
+            .interact_text()?;
+        let public_key_path = if pub_key_path.is_empty() {
+            None
+        } else {
+            Some(PathBuf::from(pub_key_path))
+        };
+
         let has_passphrase = Confirm::new()
-            .with_prompt("Does this key have a passphrase?")
+            .with_prompt(messages.has_passphrase())
             .default(false)
             .interact()?;
 
         let passphrase = if has_passphrase {
-            Some(crate::utils::password_input("SSH key passphrase")?)
+            Some(crate::utils::password_input(messages.ssh_key_passphrase())?)
         } else {
             None
         };
 
+        let agent_forwarding = Confirm::new()
+            .with_prompt("Enable SSH agent forwarding (-A)?")
+            .default(false)
+            .interact()?;
+
+        let known_hosts: String = Input::new()
+            .with_prompt("Custom known_hosts file path (optional)")
+            .allow_empty(true)
+            .interact_text()?;
+        let known_hosts_file = if known_hosts.is_empty() {
+            None
+        } else {
+            Some(PathBuf::from(known_hosts))
+        };
+
+        let custom_cmd: String = Input::new()
+            .with_prompt("Custom SSH command (optional, overrides all other SSH settings)")
+            .allow_empty(true)
+            .interact_text()?;
+        let ssh_command = if custom_cmd.is_empty() {
+            None
+        } else {
+            Some(custom_cmd)
+        };
+
         Ok(SshConfig {
             private_key_path: Some(PathBuf::from(key_path)),
-            public_key_path: None,
+            public_key_path,
             passphrase,
-            agent_forwarding: false,
+            agent_forwarding,
-            ssh_command: None,
+            ssh_command,
-            known_hosts_file: None,
+            known_hosts_file,
         })
     }
 
-    async fn setup_gpg_interactive(&self) -> Result<GpgConfig> {
+    async fn setup_gpg_interactive(&self, messages: &Messages) -> Result<GpgConfig> {
         let key_id: String = Input::new()
-            .with_prompt("GPG key ID")
+            .with_prompt(messages.gpg_key_id())
             .interact_text()?;
 
         let use_agent = Confirm::new()
-            .with_prompt("Use GPG agent?")
+            .with_prompt(messages.use_gpg_agent())
             .default(true)
             .interact()?;
 

src/commands/mod.rs

@@ -1,6 +1,7 @@
 pub mod changelog;
 pub mod commit;
 pub mod config;
+pub mod credential;
 pub mod init;
 pub mod profile;
 pub mod tag;

src/commands/tag.rs

@@ -1,15 +1,18 @@
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 use clap::Parser;
 use colored::Colorize;
 use dialoguer::{Confirm, Input, Select};
 use semver::Version;
+use std::path::PathBuf;
 
-use crate::config::manager::ConfigManager;
+use crate::config::{Language, manager::ConfigManager};
-use crate::git::{find_repo, GitRepo};
 use crate::generator::ContentGenerator;
 use crate::git::tag::{
-    bump_version, get_latest_version, suggest_version_bump, TagBuilder, VersionBump,
+    TagBuilder, VersionBump, bump_version, get_latest_version, read_project_version,
+    suggest_version_bump,
 };
+use crate::git::{GitRepo, find_repo};
+use crate::i18n::Messages;
 
 /// Generate and create Git tags
 #[derive(Parser)]
@@ -54,25 +57,43 @@ pub struct TagCommand {
     #[arg(long)]
     dry_run: bool,
 
+    /// Enable thinking mode for this tag (override config)
+    #[arg(short = 't', long)]
+    think: bool,
+
     /// Skip interactive prompts
     #[arg(short = 'y', long)]
     yes: bool,
+
+    /// Auto-detect version from project config (Cargo.toml/pyproject.toml),
+    /// falling back to commit analysis with confirmation. Mutually exclusive with --bump.
+    #[arg(short = 'A', long, conflicts_with = "bump")]
+    auto: bool,
 }
 
 impl TagCommand {
-    pub async fn execute(&self) -> Result<()> {
+    pub async fn execute(&self, config_path: Option<PathBuf>) -> Result<()> {
         let repo = find_repo(std::env::current_dir()?.as_path())?;
-        let manager = ConfigManager::new()?;
+        let manager = if let Some(ref path) = config_path {
+            ConfigManager::with_path(path)?
+        } else {
+            ConfigManager::new()?
+        };
         let config = manager.config();
+        let language = manager.get_language().unwrap_or(Language::English);
+        let messages = Messages::new(language);
 
         // Determine tag name
         let tag_name = if let Some(name) = &self.name {
             name.clone()
+        } else if self.auto {
+            self.auto_detect_version(&repo, &config.tag.version_prefix, &messages)
+                .await?
         } else if let Some(bump_str) = &self.bump {
             // Calculate bumped version
             let prefix = &config.tag.version_prefix;
-            let latest = get_latest_version(&repo, prefix)?
+            let latest =
-                .unwrap_or_else(|| Version::new(0, 0, 0));
+                get_latest_version(&repo, prefix)?.unwrap_or_else(|| Version::new(0, 0, 0));
 
             let bump = VersionBump::from_str(bump_str)?;
             let new_version = bump_version(&latest, bump, None);
@@ -80,11 +101,18 @@ impl TagCommand {
             format!("{}{}", prefix, new_version)
         } else {
             // Interactive mode
-            self.select_version_interactive(&repo, &config.tag.version_prefix).await?
+            self.select_version_interactive(&repo, &config.tag.version_prefix, &messages)
+                .await?
         };
 
         // Validate tag name (if it looks like a version)
-        if tag_name.starts_with('v') || tag_name.chars().next().map(|c| c.is_ascii_digit()).unwrap_or(false) {
+        if tag_name.starts_with('v')
+            || tag_name
+                .chars()
+                .next()
+                .map(|c| c.is_ascii_digit())
+                .unwrap_or(false)
+        {
             let version_str = tag_name.trim_start_matches('v');
             if let Err(e) = crate::utils::validators::validate_semver(version_str) {
                 println!("{}: {}", "Warning".yellow(), e);
@@ -96,7 +124,7 @@ impl TagCommand {
                         .interact()?;
 
                     if !proceed {
-                        bail!("Tag creation cancelled");
+                        bail!("{}", messages.tag_cancelled());
                     }
                 }
             }
@@ -108,16 +136,19 @@ impl TagCommand {
         } else if let Some(msg) = &self.message {
             Some(msg.clone())
         } else if self.generate || (config.tag.auto_generate && !self.yes) {
-            Some(self.generate_tag_message(&repo, &tag_name).await?)
+            Some(
+                self.generate_tag_message(&repo, &tag_name, &messages)
+                    .await?,
+            )
         } else if !self.yes {
-            Some(self.input_message_interactive(&tag_name)?)
+            Some(self.input_message_interactive(&tag_name, &messages)?)
         } else {
             Some(format!("Release {}", tag_name))
         };
 
         // Show preview
         println!("\n{}", "─".repeat(60));
-        println!("{}", "Tag preview:".bold());
+        println!("{}", messages.tag_preview().bold());
         println!("{}", "─".repeat(60));
         println!("Name:  {}", tag_name.cyan());
         if let Some(ref msg) = message {
@@ -129,22 +160,21 @@ impl TagCommand {
 
         if !self.yes {
             let confirm = Confirm::new()
-                .with_prompt("Create this tag?")
+                .with_prompt(messages.create_tag())
                 .default(true)
                 .interact()?;
 
             if !confirm {
-                println!("{}", "Tag creation cancelled.".yellow());
+                println!("{}", messages.tag_cancelled().yellow());
                 return Ok(());
             }
         }
 
         if self.dry_run {
-            println!("\n{}", "Dry run - tag not created.".yellow());
+            println!("\n{} {}", messages.dry_run(), "- tag not created.".yellow());
             return Ok(());
         }
 
-        // Create tag
         let builder = TagBuilder::new()
             .name(&tag_name)
             .message_opt(message)
@@ -154,41 +184,57 @@ impl TagCommand {
 
         builder.execute(&repo)?;
 
-        println!("{} Created tag {}", "✓".green(), tag_name.cyan());
+        println!("{} {}", messages.tag_created().green(), tag_name.cyan());
 
-        // Push if requested
+        // Push if requested or ask user
         if self.push {
-            println!("{} Pushing tag to {}...", "→".blue(), &self.remote);
+            println!("{}", messages.pushing_tag(&self.remote));
             repo.push(&self.remote, &format!("refs/tags/{}", tag_name))?;
-            println!("{} Pushed tag to {}", "✓".green(), &self.remote);
+            println!("{}", messages.pushed_tag(&self.remote));
+        } else if !self.yes && !self.dry_run {
+            let should_push = Confirm::new()
+                .with_prompt(messages.push_after_tag())
+                .default(false)
+                .interact()?;
+
+            if should_push {
+                println!("{}", messages.pushing_tag(&self.remote));
+                repo.push(&self.remote, &format!("refs/tags/{}", tag_name))?;
+                println!("{}", messages.pushed_tag(&self.remote));
+            }
         }
 
         Ok(())
     }
 
-    async fn select_version_interactive(&self, repo: &GitRepo, prefix: &str) -> Result<String> {
+    async fn select_version_interactive(
+        &self,
+        repo: &GitRepo,
+        prefix: &str,
+        messages: &Messages,
+    ) -> Result<String> {
         loop {
             let latest = get_latest_version(repo, prefix)?;
 
-            println!("\n{}", "Version selection:".bold());
+            println!("\n{}", messages.version_selection().bold());
 
             if let Some(ref version) = latest {
-                println!("Latest version: {}{}", prefix, version);
+                println!("{} {}{}", messages.latest_version(), prefix, version);
             } else {
-                println!("No existing version tags found");
+                println!("{}", messages.no_existing_version_tags());
             }
 
             let options = vec![
-                "Auto-detect bump from commits",
+                messages.auto_detect_bump(),
-                "Bump major version",
+                messages.bump_major_version(),
-                "Bump minor version",
+                messages.bump_minor_version(),
-                "Bump patch version",
+                messages.bump_patch_version(),
-                "Enter custom version",
+                messages.enter_custom_version(),
-                "Enter custom tag name",
+                messages.enter_custom_tag_name(),
             ];
 
             let selection = Select::new()
-                .with_prompt("Select option")
+                .with_prompt(messages.select_option())
                 .items(&options)
                 .default(0)
                 .interact()?;
@@ -198,14 +244,21 @@ impl TagCommand {
                     // Auto-detect
                     let commits = repo.get_commits(50)?;
                     let bump = suggest_version_bump(&commits);
-                    let version = latest.as_ref()
+                    let version = latest
+                        .as_ref()
                         .map(|v| bump_version(v, bump, None))
                         .unwrap_or_else(|| Version::new(0, 1, 0));
 
-                    println!("Suggested bump: {:?} → {}{}", bump, prefix, version);
+                    println!(
+                        "{} {:?} → {}{}",
+                        messages.suggested_bump(),
+                        bump,
+                        prefix,
+                        version
+                    );
 
                     let confirm = Confirm::new()
-                        .with_prompt("Use this version?")
+                        .with_prompt(messages.use_this_version())
                         .default(true)
                         .interact()?;
 
@@ -215,33 +268,36 @@ impl TagCommand {
                     // User rejected, continue the loop
                 }
                 1 => {
-                    let version = latest.as_ref()
+                    let version = latest
+                        .as_ref()
                         .map(|v| bump_version(v, VersionBump::Major, None))
                         .unwrap_or_else(|| Version::new(1, 0, 0));
                     return Ok(format!("{}{}", prefix, version));
                 }
                 2 => {
-                    let version = latest.as_ref()
+                    let version = latest
+                        .as_ref()
                         .map(|v| bump_version(v, VersionBump::Minor, None))
                         .unwrap_or_else(|| Version::new(0, 1, 0));
                     return Ok(format!("{}{}", prefix, version));
                 }
                 3 => {
-                    let version = latest.as_ref()
+                    let version = latest
+                        .as_ref()
                         .map(|v| bump_version(v, VersionBump::Patch, None))
                         .unwrap_or_else(|| Version::new(0, 0, 1));
                     return Ok(format!("{}{}", prefix, version));
                 }
                 4 => {
                     let input: String = Input::new()
-                        .with_prompt("Enter version (e.g., 1.2.3)")
+                        .with_prompt(messages.enter_version())
                         .interact_text()?;
                     let version = Version::parse(&input)?;
                     return Ok(format!("{}{}", prefix, version));
                 }
                 5 => {
                     let input: String = Input::new()
-                        .with_prompt("Enter tag name")
+                        .with_prompt(messages.enter_tag_name())
                         .interact_text()?;
                     return Ok(input);
                 }
@@ -250,11 +306,15 @@ impl TagCommand {
         }
     }
 
-    async fn generate_tag_message(&self, repo: &GitRepo, version: &str) -> Result<String> {
+    async fn generate_tag_message(
+        &self,
+        repo: &GitRepo,
+        version: &str,
+        messages: &Messages,
+    ) -> Result<String> {
         let manager = ConfigManager::new()?;
-        let config = manager.config();
+        let language = manager.get_language().unwrap_or(Language::English);
 
-        // Get commits since last tag
         let tags = repo.get_tags()?;
         let commits = if let Some(latest_tag) = tags.first() {
             repo.get_commits_between(&latest_tag.name, "HEAD")?
@@ -266,17 +326,70 @@ impl TagCommand {
             return Ok(format!("Release {}", version));
         }
 
-        println!("{} AI is generating tag message from {} commits...", "🤖", commits.len());
+        println!("{}", messages.ai_generating_tag(commits.len()));
 
-        let generator = ContentGenerator::new(&config.llm).await?;
+        let generator = ContentGenerator::new_with_think(&manager, self.think, None).await?;
-        generator.generate_tag_message(version, &commits).await
+        generator
+            .generate_tag_message(version, &commits, language)
+            .await
     }
 
-    fn input_message_interactive(&self, version: &str) -> Result<String> {
+    async fn auto_detect_version(
+        &self,
+        repo: &GitRepo,
+        prefix: &str,
+        messages: &Messages,
+    ) -> Result<String> {
+        let project_dir = std::env::current_dir()?;
+
+        // 1. Try reading from project config files
+        if let Some(version) = read_project_version(&project_dir) {
+            let tag_name = format!("{}{}", prefix, version);
+            println!(
+                "{} {}",
+                messages.latest_version(),
+                tag_name.cyan()
+            );
+            return Ok(tag_name);
+        }
+
+        // 2. Fall back to commit analysis
+        println!("{}", messages.auto_detect_bump());
+        let commits = repo.get_commits(50)?;
+        let bump = suggest_version_bump(&commits);
+        let latest = get_latest_version(repo, prefix)?.unwrap_or_else(|| Version::new(0, 0, 0));
+        let version = bump_version(&latest, bump, None);
+        let tag_name = format!("{}{}", prefix, version);
+
+        println!(
+            "{} {:?} → {}",
+            messages.suggested_bump(),
+            bump,
+            tag_name.cyan()
+        );
+
+        if !self.yes {
+            let confirm = Confirm::new()
+                .with_prompt(messages.use_this_version())
+                .default(true)
+                .interact()?;
+
+            if !confirm {
+                // Fall through to interactive version selection
+                return self
+                    .select_version_interactive(repo, prefix, messages)
+                    .await;
+            }
+        }
+
+        Ok(tag_name)
+    }
+
+    fn input_message_interactive(&self, version: &str, messages: &Messages) -> Result<String> {
         let default_msg = format!("Release {}", version);
 
         let use_editor = Confirm::new()
-            .with_prompt("Open editor for tag message?")
+            .with_prompt(messages.open_editor())
             .default(false)
             .interact()?;
 
@@ -284,7 +397,7 @@ impl TagCommand {
             crate::utils::editor::edit_content(&default_msg)
         } else {
             Ok(Input::new()
-                .with_prompt("Tag message")
+                .with_prompt(messages.tag_message())
                 .default(default_msg)
                 .interact_text()?)
         }

src/config/manager.rs

@@ -1,6 +1,9 @@
-use super::{AppConfig, GitProfile, TokenConfig, TokenType};
+use super::{AppConfig, GitProfile, TokenConfig};
-use anyhow::{bail, Context, Result};
+use crate::utils::keyring::{
-use std::collections::HashMap;
+    KeyringManager, get_default_base_url, get_default_model, provider_needs_api_key,
+};
+use anyhow::{Context, Result, bail};
+// use std::collections::HashMap;
 use std::path::{Path, PathBuf};
 
 /// Configuration manager
@@ -8,6 +11,7 @@ pub struct ConfigManager {
     config: AppConfig,
     config_path: PathBuf,
     modified: bool,
+    keyring: KeyringManager,
 }
 
 impl ConfigManager {
@@ -19,11 +23,26 @@ impl ConfigManager {
 
     /// Create config manager with specific path
     pub fn with_path(path: &Path) -> Result<Self> {
-        let config = AppConfig::load(path)?;
+        let config = if path.exists() {
+            AppConfig::load(path)?
+        } else {
+            AppConfig::default()
+        };
         Ok(Self {
             config,
             config_path: path.to_path_buf(),
             modified: false,
+            keyring: KeyringManager::new(),
+        })
+    }
+
+    /// Create config manager with fresh config (ignoring existing)
+    pub fn with_path_fresh(path: &Path) -> Result<Self> {
+        Ok(Self {
+            config: AppConfig::default(),
+            config_path: path.to_path_buf(),
+            modified: true,
+            keyring: KeyringManager::new(),
         })
     }
 
@@ -47,10 +66,10 @@ impl ConfigManager {
         Ok(())
     }
 
-    /// Force save configuration
+    // /// Force save configuration
-    pub fn force_save(&self) -> Result<()> {
+    // pub fn force_save(&self) -> Result<()> {
-        self.config.save(&self.config_path)
+    //     self.config.save(&self.config_path)
-    }
+    // }
 
     /// Get configuration file path
     pub fn path(&self) -> &Path {
@@ -101,11 +120,11 @@ impl ConfigManager {
         self.config.profiles.get(name)
     }
 
-    /// Get mutable profile
+    // /// Get mutable profile
-    pub fn get_profile_mut(&mut self, name: &str) -> Option<&mut GitProfile> {
+    // pub fn get_profile_mut(&mut self, name: &str) -> Option<&mut GitProfile> {
-        self.modified = true;
+    //     self.modified = true;
-        self.config.profiles.get_mut(name)
+    //     self.config.profiles.get_mut(name)
-    }
+    // }
 
     /// List all profile names
     pub fn list_profiles(&self) -> Vec<&String> {
@@ -119,10 +138,10 @@ impl ConfigManager {
 
     /// Set default profile
     pub fn set_default_profile(&mut self, name: Option<String>) -> Result<()> {
-        if let Some(ref n) = name {
+        if let Some(ref n) = name
-            if !self.config.profiles.contains_key(n) {
+            && !self.config.profiles.contains_key(n)
-                bail!("Profile '{}' does not exist", n);
+        {
-            }
+            bail!("Profile '{}' does not exist", n);
         }
         self.config.default_profile = name;
         self.modified = true;
@@ -153,54 +172,138 @@ impl ConfigManager {
         }
     }
 
-    /// Get profile usage statistics
+    // /// Get profile usage statistics
-    pub fn get_profile_usage(&self, name: &str) -> Option<&super::UsageStats> {
+    // pub fn get_profile_usage(&self, name: &str) -> Option<&super::UsageStats> {
-        self.config.profiles.get(name).map(|p| &p.usage)
+    //     self.config.profiles.get(name).map(|p| &p.usage)
-    }
+    // }
 
     // Token management
 
-    /// Add a token to a profile
+    /// Add a token to a profile (stores token in keyring)
-    pub fn add_token_to_profile(&mut self, profile_name: &str, service: String, token: TokenConfig) -> Result<()> {
+    pub fn add_token_to_profile(
+        &mut self,
+        profile_name: &str,
+        service: String,
+        token: TokenConfig,
+    ) -> Result<()> {
+        if !self.config.profiles.contains_key(profile_name) {
+            bail!("Profile '{}' does not exist", profile_name);
+        }
+
         if let Some(profile) = self.config.profiles.get_mut(profile_name) {
             profile.add_token(service, token);
             self.modified = true;
-            Ok(())
+        }
+
+        Ok(())
+    }
+
+    /// Store a PAT token in keyring for a profile
+    pub fn store_pat_for_profile(
+        &self,
+        profile_name: &str,
+        service: &str,
+        token_value: &str,
+    ) -> Result<()> {
+        let profile = self
+            .get_profile(profile_name)
+            .ok_or_else(|| anyhow::anyhow!("Profile '{}' not found", profile_name))?;
+
+        let user_email = &profile.user_email;
+
+        self.keyring
+            .store_pat(profile_name, user_email, service, token_value)
+    }
+
+    /// Get a PAT token from keyring for a profile
+    pub fn get_pat_for_profile(&self, profile_name: &str, service: &str) -> Result<Option<String>> {
+        let profile = self
+            .get_profile(profile_name)
+            .ok_or_else(|| anyhow::anyhow!("Profile '{}' not found", profile_name))?;
+
+        let user_email = &profile.user_email;
+
+        self.keyring.get_pat(profile_name, user_email, service)
+    }
+
+    /// Check if a PAT token exists for a profile
+    pub fn has_pat_for_profile(&self, profile_name: &str, service: &str) -> bool {
+        if let Some(profile) = self.get_profile(profile_name) {
+            let user_email = &profile.user_email;
+            self.keyring.has_pat(profile_name, user_email, service)
         } else {
-            bail!("Profile '{}' does not exist", profile_name);
+            false
         }
     }
 
-    /// Get a token from a profile
+    /// Remove a token from a profile (deletes from keyring)
-    pub fn get_token_from_profile(&self, profile_name: &str, service: &str) -> Option<&TokenConfig> {
-        self.config.profiles.get(profile_name)?.get_token(service)
-    }
-
-    /// Remove a token from a profile
     pub fn remove_token_from_profile(&mut self, profile_name: &str, service: &str) -> Result<()> {
+        if !self.config.profiles.contains_key(profile_name) {
+            bail!("Profile '{}' does not exist", profile_name);
+        }
+
+        let user_email = self
+            .config
+            .profiles
+            .get(profile_name)
+            .unwrap()
+            .user_email
+            .clone();
+        let services: Vec<String> = self
+            .config
+            .profiles
+            .get(profile_name)
+            .unwrap()
+            .tokens
+            .keys()
+            .cloned()
+            .collect();
+
+        if !services.contains(&service.to_string()) {
+            bail!(
+                "Token for service '{}' not found in profile '{}'",
+                service,
+                profile_name
+            );
+        }
+
+        self.keyring
+            .delete_pat(profile_name, &user_email, service)?;
+
         if let Some(profile) = self.config.profiles.get_mut(profile_name) {
             profile.remove_token(service);
             self.modified = true;
-            Ok(())
-        } else {
-            bail!("Profile '{}' does not exist", profile_name);
         }
+
+        Ok(())
     }
 
-    /// List all tokens in a profile
+    /// Delete all PAT tokens for a profile (used when removing a profile)
-    pub fn list_profile_tokens(&self, profile_name: &str) -> Option<Vec<&String>> {
+    pub fn delete_all_pats_for_profile(&self, profile_name: &str) -> Result<()> {
-        self.config.profiles.get(profile_name).map(|p| p.tokens.keys().collect())
+        if let Some(profile) = self.get_profile(profile_name) {
+            let user_email = &profile.user_email;
+            let services: Vec<String> = profile.tokens.keys().cloned().collect();
+
+            self.keyring
+                .delete_all_pats_for_profile(profile_name, user_email, &services)?;
+        }
+        Ok(())
     }
 
+    // /// List all tokens in a profile
+    // pub fn list_profile_tokens(&self, profile_name: &str) -> Option<Vec<&String>> {
+    //     self.config.profiles.get(profile_name).map(|p| p.tokens.keys().collect())
+    // }
+
     // Repository profile management
 
-    /// Get profile for repository
+    // /// Get profile for repository
-    pub fn get_repo_profile(&self, repo_path: &str) -> Option<&GitProfile> {
+    // pub fn get_repo_profile(&self, repo_path: &str) -> Option<&GitProfile> {
-        self.config
+    //     self.config
-            .repo_profiles
+    //         .repo_profiles
-            .get(repo_path)
+    //         .get(repo_path)
-            .and_then(|name| self.config.profiles.get(name))
+    //         .and_then(|name| self.config.profiles.get(name))
-    }
+    // }
 
     /// Set profile for repository
     pub fn set_repo_profile(&mut self, repo_path: String, profile_name: String) -> Result<()> {
@@ -212,32 +315,91 @@ impl ConfigManager {
         Ok(())
     }
 
-    /// Remove repository profile mapping
+    // /// Remove repository profile mapping
-    pub fn remove_repo_profile(&mut self, repo_path: &str) {
+    // pub fn remove_repo_profile(&mut self, repo_path: &str) {
-        self.config.repo_profiles.remove(repo_path);
+    //     self.config.repo_profiles.remove(repo_path);
-        self.modified = true;
+    //     self.modified = true;
+    // }
+
+    // /// List repository profile mappings
+    // pub fn list_repo_profiles(&self) -> &HashMap<String, String> {
+    //     &self.config.repo_profiles
+    // }
+
+    // /// Get effective profile for a repository (repo-specific -> default)
+    // pub fn get_effective_profile(&self, repo_path: Option<&str>) -> Option<&GitProfile> {
+    //     if let Some(path) = repo_path {
+    //         if let Some(profile) = self.get_repo_profile(path) {
+    //             return Some(profile);
+    //         }
+    //     }
+    //     self.default_profile()
+    // }
+
+    /// Check and compare profile with git configuration
+    pub fn check_profile_config(
+        &self,
+        profile_name: &str,
+        repo: &git2::Repository,
+    ) -> Result<super::ProfileComparison> {
+        let profile = self
+            .get_profile(profile_name)
+            .ok_or_else(|| anyhow::anyhow!("Profile '{}' not found", profile_name))?;
+        profile.compare_with_git_config(repo)
     }
 
-    /// List repository profile mappings
+    /// Find a profile that matches the given user config (name, email, signing_key)
-    pub fn list_repo_profiles(&self) -> &HashMap<String, String> {
+    pub fn find_matching_profile(
-        &self.config.repo_profiles
+        &self,
-    }
+        user_name: &str,
+        user_email: &str,
+        signing_key: Option<&str>,
+    ) -> Option<&GitProfile> {
+        for profile in self.config.profiles.values() {
+            let name_match = profile.user_name == user_name;
+            let email_match = profile.user_email == user_email;
+            let key_match = match (signing_key, profile.signing_key()) {
+                (Some(git_key), Some(profile_key)) => git_key == profile_key,
+                (None, None) => true,
+                (Some(_), None) => false,
+                (None, Some(_)) => false,
+            };
 
-    /// Get effective profile for a repository (repo-specific -> default)
+            if name_match && email_match && key_match {
-    pub fn get_effective_profile(&self, repo_path: Option<&str>) -> Option<&GitProfile> {
-        if let Some(path) = repo_path {
-            if let Some(profile) = self.get_repo_profile(path) {
                 return Some(profile);
             }
         }
-        self.default_profile()
+        None
     }
 
-    /// Check and compare profile with git configuration
+    /// Find profiles that partially match (same name or same email)
-    pub fn check_profile_config(&self, profile_name: &str, repo: &git2::Repository) -> Result<super::ProfileComparison> {
+    pub fn find_partial_matches(&self, user_name: &str, user_email: &str) -> Vec<&GitProfile> {
-        let profile = self.get_profile(profile_name)
+        self.config
-            .ok_or_else(|| anyhow::anyhow!("Profile '{}' not found", profile_name))?;
+            .profiles
-        profile.compare_with_git_config(repo)
+            .values()
+            .filter(|p| p.user_name == user_name || p.user_email == user_email)
+            .collect()
+    }
+
+    /// Get repo profile mapping
+    pub fn get_repo_profile_name(&self, repo_path: &str) -> Option<&String> {
+        self.config.repo_profiles.get(repo_path)
+    }
+
+    /// Find profiles whose repo_patterns match the given repo path
+    pub fn match_profiles_by_repo_pattern(&self, repo_path: &str) -> Vec<&GitProfile> {
+        self.config
+            .profiles
+            .values()
+            .filter(|p| {
+                p.settings.repo_patterns.iter().any(|pattern| {
+                    let trimmed = pattern.trim_matches('*');
+                    repo_path.ends_with(trimmed)
+                        || repo_path.starts_with(trimmed)
+                        || repo_path == trimmed
+                })
+            })
+            .collect()
     }
 
     // LLM configuration
@@ -249,104 +411,169 @@ impl ConfigManager {
 
     /// Set LLM provider
     pub fn set_llm_provider(&mut self, provider: String) {
-        self.config.llm.provider = provider;
+        let default_model = get_default_model(&provider);
+        self.config.llm.provider = provider.clone();
+        if self.config.llm.model.is_empty() || self.config.llm.model == "llama2" {
+            self.config.llm.model = default_model.to_string();
+        }
         self.modified = true;
     }
 
-    /// Get OpenAI API key
+    /// Get model
-    pub fn openai_api_key(&self) -> Option<&String> {
+    pub fn llm_model(&self) -> &str {
-        self.config.llm.openai.api_key.as_ref()
+        &self.config.llm.model
     }
 
-    /// Set OpenAI API key
+    /// Set model
-    pub fn set_openai_api_key(&mut self, key: String) {
+    pub fn set_llm_model(&mut self, model: String) {
-        self.config.llm.openai.api_key = Some(key);
+        self.config.llm.model = model;
         self.modified = true;
     }
 
-    /// Get Anthropic API key
+    /// Get base URL (returns provider default if not set)
-    pub fn anthropic_api_key(&self) -> Option<&String> {
+    pub fn llm_base_url(&self) -> String {
-        self.config.llm.anthropic.api_key.as_ref()
+        match &self.config.llm.base_url {
+            Some(url) => url.clone(),
+            None => get_default_base_url(&self.config.llm.provider).to_string(),
+        }
     }
 
-    /// Set Anthropic API key
+    /// Set base URL
-    pub fn set_anthropic_api_key(&mut self, key: String) {
+    pub fn set_llm_base_url(&mut self, url: Option<String>) {
-        self.config.llm.anthropic.api_key = Some(key);
+        self.config.llm.base_url = url;
         self.modified = true;
     }
 
-    /// Get Kimi API key
+    /// Get API key from configured storage method
-    pub fn kimi_api_key(&self) -> Option<&String> {
+    pub fn get_api_key(&self) -> Option<String> {
-        self.config.llm.kimi.api_key.as_ref()
+        // First try environment variables (always checked)
+        if let Some(key) = self
+            .keyring
+            .get_api_key(&self.config.llm.provider)
+            .unwrap_or(None)
+        {
+            return Some(key);
+        }
+
+        // Then try config file if configured
+        if self.config.llm.api_key_storage == "config" {
+            return self.config.llm.api_key.clone();
+        }
+
+        None
     }
 
-    /// Set Kimi API key
+    /// Store API key in configured storage method
-    pub fn set_kimi_api_key(&mut self, key: String) {
+    pub fn set_api_key(&self, api_key: &str) -> Result<()> {
-        self.config.llm.kimi.api_key = Some(key);
+        match self.config.llm.api_key_storage.as_str() {
-        self.modified = true;
+            "keyring" => {
+                if !self.keyring.is_available() {
+                    bail!(
+                        "Keyring is not available. Set QUICOMMIT_API_KEY environment variable instead or change api_key_storage to 'config'."
+                    );
+                }
+                self.keyring
+                    .store_api_key(&self.config.llm.provider, api_key)
+            }
+            "config" => {
+                // We can't modify self.config here since self is immutable
+                // This will be handled by the caller updating the config
+                Ok(())
+            }
+            "environment" => {
+                bail!(
+                    "API key storage set to 'environment'. Please set QUICOMMIT_{}_API_KEY environment variable.",
+                    self.config.llm.provider.to_uppercase()
+                );
+            }
+            _ => {
+                bail!(
+                    "Invalid API key storage method: {}",
+                    self.config.llm.api_key_storage
+                );
+            }
+        }
     }
 
-    /// Get Kimi base URL
+    /// Delete API key from configured storage method
-    pub fn kimi_base_url(&self) -> &str {
+    pub fn delete_api_key(&self) -> Result<()> {
-        &self.config.llm.kimi.base_url
+        match self.config.llm.api_key_storage.as_str() {
+            "keyring" => {
+                if self.keyring.is_available() {
+                    self.keyring.delete_api_key(&self.config.llm.provider)?;
+                }
+            }
+            "config" => {
+                // We can't modify self.config here since self is immutable
+                // This will be handled by the caller updating the config
+            }
+            "environment" => {
+                // Environment variables are not managed by the app
+            }
+            _ => {
+                bail!(
+                    "Invalid API key storage method: {}",
+                    self.config.llm.api_key_storage
+                );
+            }
+        }
+        Ok(())
     }
 
-    /// Set Kimi base URL
+    /// Check if API key is configured
-    pub fn set_kimi_base_url(&mut self, url: String) {
+    pub fn has_api_key(&self) -> bool {
-        self.config.llm.kimi.base_url = url;
+        if !provider_needs_api_key(&self.config.llm.provider) {
-        self.modified = true;
+            return true;
+        }
+
+        // Check environment variables
+        if self
+            .keyring
+            .get_api_key(&self.config.llm.provider)
+            .unwrap_or(None)
+            .is_some()
+        {
+            return true;
+        }
+
+        // Check config file if configured
+        if self.config.llm.api_key_storage == "config" {
+            return self.config.llm.api_key.is_some();
+        }
+
+        false
     }
 
-    /// Get DeepSeek API key
+    /// Get keyring manager reference
-    pub fn deepseek_api_key(&self) -> Option<&String> {
+    pub fn keyring(&self) -> &KeyringManager {
-        self.config.llm.deepseek.api_key.as_ref()
+        &self.keyring
     }
 
-    /// Set DeepSeek API key
+    // /// Configure LLM provider with all settings
-    pub fn set_deepseek_api_key(&mut self, key: String) {
+    // pub fn configure_llm(&mut self, provider: String, model: Option<String>, base_url: Option<String>, api_key: Option<&str>) -> Result<()> {
-        self.config.llm.deepseek.api_key = Some(key);
+    //     self.set_llm_provider(provider.clone());
-        self.modified = true;
-    }
 
-    /// Get DeepSeek base URL
+    //     if let Some(m) = model {
-    pub fn deepseek_base_url(&self) -> &str {
+    //         self.set_llm_model(m);
-        &self.config.llm.deepseek.base_url
+    //     }
-    }
 
-    /// Set DeepSeek base URL
+    //     self.set_llm_base_url(base_url);
-    pub fn set_deepseek_base_url(&mut self, url: String) {
-        self.config.llm.deepseek.base_url = url;
-        self.modified = true;
-    }
 
-    /// Get OpenRouter API key
+    //     if let Some(key) = api_key {
-    pub fn openrouter_api_key(&self) -> Option<&String> {
+    //         if provider_needs_api_key(&provider) {
-        self.config.llm.openrouter.api_key.as_ref()
+    //             self.set_api_key(key)?;
-    }
+    //         }
+    //     }
 
-    /// Set OpenRouter API key
+    //     Ok(())
-    pub fn set_openrouter_api_key(&mut self, key: String) {
+    // }
-        self.config.llm.openrouter.api_key = Some(key);
-        self.modified = true;
-    }
-
-    /// Get OpenRouter base URL
-    pub fn openrouter_base_url(&self) -> &str {
-        &self.config.llm.openrouter.base_url
-    }
-
-    /// Set OpenRouter base URL
-    pub fn set_openrouter_base_url(&mut self, url: String) {
-        self.config.llm.openrouter.base_url = url;
-        self.modified = true;
-    }
 
     // Commit configuration
 
-    /// Get commit format
+    // /// Get commit format
-    pub fn commit_format(&self) -> super::CommitFormat {
+    // pub fn commit_format(&self) -> super::CommitFormat {
-        self.config.commit.format
+    //     self.config.commit.format
-    }
+    // }
 
     /// Set commit format
     pub fn set_commit_format(&mut self, format: super::CommitFormat) {
@@ -354,10 +581,10 @@ impl ConfigManager {
         self.modified = true;
     }
 
-    /// Check if auto-generate is enabled
+    // /// Check if auto-generate is enabled
-    pub fn auto_generate_commits(&self) -> bool {
+    // pub fn auto_generate_commits(&self) -> bool {
-        self.config.commit.auto_generate
+    //     self.config.commit.auto_generate
-    }
+    // }
 
     /// Set auto-generate commits
     pub fn set_auto_generate_commits(&mut self, enabled: bool) {
@@ -367,10 +594,10 @@ impl ConfigManager {
 
     // Tag configuration
 
-    /// Get version prefix
+    // /// Get version prefix
-    pub fn version_prefix(&self) -> &str {
+    // pub fn version_prefix(&self) -> &str {
-        &self.config.tag.version_prefix
+    //     &self.config.tag.version_prefix
-    }
+    // }
 
     /// Set version prefix
     pub fn set_version_prefix(&mut self, prefix: String) {
@@ -380,10 +607,10 @@ impl ConfigManager {
 
     // Changelog configuration
 
-    /// Get changelog path
+    // /// Get changelog path
-    pub fn changelog_path(&self) -> &str {
+    // pub fn changelog_path(&self) -> &str {
-        &self.config.changelog.path
+    //     &self.config.changelog.path
-    }
+    // }
 
     /// Set changelog path
     pub fn set_changelog_path(&mut self, path: String) {
@@ -391,16 +618,54 @@ impl ConfigManager {
         self.modified = true;
     }
 
+    // Language configuration
+
+    // /// Get output language
+    // pub fn output_language(&self) -> &str {
+    //     &self.config.language.output_language
+    // }
+
+    /// Set output language
+    pub fn set_output_language(&mut self, language: String) {
+        self.config.language.output_language = language;
+        self.modified = true;
+    }
+
+    /// Get language enum from config
+    pub fn get_language(&self) -> Option<super::Language> {
+        super::Language::from_str(&self.config.language.output_language)
+    }
+
+    /// Check if commit types should be kept in English
+    pub fn keep_types_english(&self) -> bool {
+        self.config.language.keep_types_english
+    }
+
+    /// Set keep types English flag
+    pub fn set_keep_types_english(&mut self, keep: bool) {
+        self.config.language.keep_types_english = keep;
+        self.modified = true;
+    }
+
+    /// Check if changelog types should be kept in English
+    pub fn keep_changelog_types_english(&self) -> bool {
+        self.config.language.keep_changelog_types_english
+    }
+
+    /// Set keep changelog types English flag
+    pub fn set_keep_changelog_types_english(&mut self, keep: bool) {
+        self.config.language.keep_changelog_types_english = keep;
+        self.modified = true;
+    }
+
     /// Export configuration to TOML string
     pub fn export(&self) -> Result<String> {
-        toml::to_string_pretty(&self.config)
+        toml::to_string_pretty(&self.config).context("Failed to serialize config")
-            .context("Failed to serialize config")
     }
 
     /// Import configuration from TOML string
     pub fn import(&mut self, toml_str: &str) -> Result<()> {
-        self.config = toml::from_str(toml_str)
+        self.config = toml::from_str(toml_str).context("Failed to parse config")?;
-            .context("Failed to parse config")?;
         self.modified = true;
         Ok(())
     }
@@ -418,6 +683,7 @@ impl Default for ConfigManager {
             config: AppConfig::default(),
             config_path: PathBuf::new(),
             modified: false,
+            keyring: KeyringManager::new(),
         }
     }
 }

src/config/mod.rs

@@ -7,11 +7,7 @@ use std::path::{Path, PathBuf};
 pub mod manager;
 pub mod profile;
 
-pub use manager::ConfigManager;
+pub use profile::{GitProfile, ProfileComparison, TokenConfig, TokenType};
-pub use profile::{
-    GitProfile, ProfileSettings, SshConfig, GpgConfig, TokenConfig, TokenType,
-    UsageStats, ProfileComparison, ConfigDifference
-};
 
 /// Application configuration
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -21,10 +17,11 @@ pub struct AppConfig {
     pub version: String,
 
     /// Default profile name
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub default_profile: Option<String>,
 
     /// All configured profiles
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "HashMap::is_empty")]
     pub profiles: HashMap<String, GitProfile>,
 
     /// LLM configuration
@@ -44,16 +41,12 @@ pub struct AppConfig {
     pub changelog: ChangelogConfig,
 
     /// Repository-specific profile mappings
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "HashMap::is_empty")]
     pub repo_profiles: HashMap<String, String>,
 
-    /// Whether to encrypt sensitive data
+    /// Language settings
-    #[serde(default = "default_true")]
-    pub encrypt_sensitive: bool,
-
-    /// Theme settings
     #[serde(default)]
-    pub theme: ThemeConfig,
+    pub language: LanguageConfig,
 }
 
 impl Default for AppConfig {
@@ -67,8 +60,7 @@ impl Default for AppConfig {
             tag: TagConfig::default(),
             changelog: ChangelogConfig::default(),
             repo_profiles: HashMap::new(),
-            encrypt_sensitive: true,
+            language: LanguageConfig::default(),
-            theme: ThemeConfig::default(),
         }
     }
 }
@@ -76,37 +68,17 @@ impl Default for AppConfig {
 /// LLM configuration
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct LlmConfig {
-    /// Default LLM provider
+    /// Current LLM provider (ollama, openai, anthropic, kimi, deepseek, openrouter)
     #[serde(default = "default_llm_provider")]
     pub provider: String,
 
-    /// OpenAI configuration
+    /// Model to use
-    #[serde(default)]
+    #[serde(default = "default_model")]
-    pub openai: OpenAiConfig,
+    pub model: String,
 
-    /// Ollama configuration
+    /// API base URL (optional, will use provider default if not set)
-    #[serde(default)]
+    #[serde(skip_serializing_if = "Option::is_none")]
-    pub ollama: OllamaConfig,
+    pub base_url: Option<String>,
-
-    /// Anthropic Claude configuration
-    #[serde(default)]
-    pub anthropic: AnthropicConfig,
-
-    /// Kimi (Moonshot AI) configuration
-    #[serde(default)]
-    pub kimi: KimiConfig,
-
-    /// DeepSeek configuration
-    #[serde(default)]
-    pub deepseek: DeepSeekConfig,
-
-    /// OpenRouter configuration
-    #[serde(default)]
-    pub openrouter: OpenRouterConfig,
-
-    /// Custom API configuration
-    #[serde(default)]
-    pub custom: Option<CustomLlmConfig>,
 
     /// Maximum tokens for generation
     #[serde(default = "default_max_tokens")]
@@ -119,186 +91,45 @@ pub struct LlmConfig {
     /// Timeout in seconds
     #[serde(default = "default_timeout")]
     pub timeout: u64,
+
+    /// API key storage method (keyring, config, environment)
+    #[serde(default = "default_api_key_storage")]
+    pub api_key_storage: String,
+
+    /// API key (stored in config for fallback)
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub api_key: Option<String>,
+
+    /// Enable thinking/reasoning mode (deepseek, kimi, anthropic)
+    #[serde(default)]
+    pub thinking_enabled: bool,
+
+    /// Budget tokens for thinking mode (Anthropic Claude 4)
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub thinking_budget_tokens: Option<u32>,
+}
+
+fn default_api_key_storage() -> String {
+    "keyring".to_string()
 }
 
 impl Default for LlmConfig {
     fn default() -> Self {
         Self {
             provider: default_llm_provider(),
-            openai: OpenAiConfig::default(),
+            model: default_model(),
-            ollama: OllamaConfig::default(),
+            base_url: None,
-            anthropic: AnthropicConfig::default(),
-            kimi: KimiConfig::default(),
-            deepseek: DeepSeekConfig::default(),
-            openrouter: OpenRouterConfig::default(),
-            custom: None,
             max_tokens: default_max_tokens(),
             temperature: default_temperature(),
             timeout: default_timeout(),
-        }
+            api_key_storage: default_api_key_storage(),
-    }
-}
-
-/// OpenAI API configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct OpenAiConfig {
-    /// API key
-    pub api_key: Option<String>,
-
-    /// Model to use
-    #[serde(default = "default_openai_model")]
-    pub model: String,
-
-    /// API base URL (for custom endpoints)
-    #[serde(default = "default_openai_base_url")]
-    pub base_url: String,
-}
-
-impl Default for OpenAiConfig {
-    fn default() -> Self {
-        Self {
             api_key: None,
-            model: default_openai_model(),
+            thinking_enabled: false,
-            base_url: default_openai_base_url(),
+            thinking_budget_tokens: None,
         }
     }
 }
 
-/// Ollama configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct OllamaConfig {
-    /// Ollama server URL
-    #[serde(default = "default_ollama_url")]
-    pub url: String,
-
-    /// Model to use
-    #[serde(default = "default_ollama_model")]
-    pub model: String,
-}
-
-impl Default for OllamaConfig {
-    fn default() -> Self {
-        Self {
-            url: default_ollama_url(),
-            model: default_ollama_model(),
-        }
-    }
-}
-
-/// Anthropic Claude configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct AnthropicConfig {
-    /// API key
-    pub api_key: Option<String>,
-
-    /// Model to use
-    #[serde(default = "default_anthropic_model")]
-    pub model: String,
-}
-
-impl Default for AnthropicConfig {
-    fn default() -> Self {
-        Self {
-            api_key: None,
-            model: default_anthropic_model(),
-        }
-    }
-}
-
-/// Kimi (Moonshot AI) configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct KimiConfig {
-    /// API key
-    pub api_key: Option<String>,
-
-    /// Model to use
-    #[serde(default = "default_kimi_model")]
-    pub model: String,
-
-    /// API base URL (for custom endpoints)
-    #[serde(default = "default_kimi_base_url")]
-    pub base_url: String,
-}
-
-impl Default for KimiConfig {
-    fn default() -> Self {
-        Self {
-            api_key: None,
-            model: default_kimi_model(),
-            base_url: default_kimi_base_url(),
-        }
-    }
-}
-
-/// DeepSeek configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct DeepSeekConfig {
-    /// API key
-    pub api_key: Option<String>,
-
-    /// Model to use
-    #[serde(default = "default_deepseek_model")]
-    pub model: String,
-
-    /// API base URL (for custom endpoints)
-    #[serde(default = "default_deepseek_base_url")]
-    pub base_url: String,
-}
-
-impl Default for DeepSeekConfig {
-    fn default() -> Self {
-        Self {
-            api_key: None,
-            model: default_deepseek_model(),
-            base_url: default_deepseek_base_url(),
-        }
-    }
-}
-
-/// OpenRouter configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct OpenRouterConfig {
-    /// API key
-    pub api_key: Option<String>,
-
-    /// Model to use
-    #[serde(default = "default_openrouter_model")]
-    pub model: String,
-
-    /// API base URL (for custom endpoints)
-    #[serde(default = "default_openrouter_base_url")]
-    pub base_url: String,
-}
-
-impl Default for OpenRouterConfig {
-    fn default() -> Self {
-        Self {
-            api_key: None,
-            model: default_openrouter_model(),
-            base_url: default_openrouter_base_url(),
-        }
-    }
-}
-
-/// Custom LLM API configuration
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct CustomLlmConfig {
-    /// API endpoint URL
-    pub url: String,
-
-    /// API key (optional)
-    pub api_key: Option<String>,
-
-    /// Model name
-    pub model: String,
-
-    /// Request format template (JSON)
-    pub request_template: String,
-
-    /// Response path to extract content (e.g., "choices.0.message.content")
-    pub response_path: String,
-}
-
 /// Commit configuration
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct CommitConfig {
@@ -309,33 +140,6 @@ pub struct CommitConfig {
     /// Enable AI generation by default
     #[serde(default = "default_true")]
     pub auto_generate: bool,
-
-    /// Allow empty commits
-    #[serde(default)]
-    pub allow_empty: bool,
-
-    /// Sign commits with GPG
-    #[serde(default)]
-    pub gpg_sign: bool,
-
-    /// Default scope (optional)
-    pub default_scope: Option<String>,
-
-    /// Maximum subject length
-    #[serde(default = "default_max_subject_length")]
-    pub max_subject_length: usize,
-
-    /// Require scope
-    #[serde(default)]
-    pub require_scope: bool,
-
-    /// Require body for certain types
-    #[serde(default)]
-    pub require_body: bool,
-
-    /// Types that require body
-    #[serde(default = "default_body_required_types")]
-    pub body_required_types: Vec<String>,
 }
 
 impl Default for CommitConfig {
@@ -343,13 +147,6 @@ impl Default for CommitConfig {
         Self {
             format: default_commit_format(),
             auto_generate: true,
-            allow_empty: false,
-            gpg_sign: false,
-            default_scope: None,
-            max_subject_length: default_max_subject_length(),
-            require_scope: false,
-            require_body: false,
-            body_required_types: default_body_required_types(),
         }
     }
 }
@@ -381,18 +178,6 @@ pub struct TagConfig {
     /// Enable AI generation for tag messages
     #[serde(default = "default_true")]
     pub auto_generate: bool,
-
-    /// Sign tags with GPG
-    #[serde(default)]
-    pub gpg_sign: bool,
-
-    /// Include changelog in annotated tags
-    #[serde(default = "default_true")]
-    pub include_changelog: bool,
-
-    /// Default annotation template
-    #[serde(default)]
-    pub annotation_template: Option<String>,
 }
 
 impl Default for TagConfig {
@@ -400,9 +185,6 @@ impl Default for TagConfig {
         Self {
             version_prefix: default_version_prefix(),
             auto_generate: true,
-            gpg_sign: false,
-            include_changelog: true,
-            annotation_template: None,
         }
     }
 }
@@ -417,26 +199,6 @@ pub struct ChangelogConfig {
     /// Enable AI generation for changelog entries
     #[serde(default = "default_true")]
     pub auto_generate: bool,
-
-    /// Changelog format
-    #[serde(default = "default_changelog_format")]
-    pub format: ChangelogFormat,
-
-    /// Include commit hashes
-    #[serde(default)]
-    pub include_hashes: bool,
-
-    /// Include authors
-    #[serde(default)]
-    pub include_authors: bool,
-
-    /// Group by type
-    #[serde(default = "default_true")]
-    pub group_by_type: bool,
-
-    /// Custom categories
-    #[serde(default)]
-    pub custom_categories: Vec<ChangelogCategory>,
 }
 
 impl Default for ChangelogConfig {
@@ -444,61 +206,89 @@ impl Default for ChangelogConfig {
         Self {
             path: default_changelog_path(),
             auto_generate: true,
-            format: default_changelog_format(),
-            include_hashes: false,
-            include_authors: false,
-            group_by_type: true,
-            custom_categories: vec![],
         }
     }
 }
 
-/// Changelog format
+/// Language configuration
-#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
-#[serde(rename_all = "kebab-case")]
-pub enum ChangelogFormat {
-    KeepAChangelog,
-    GitHubReleases,
-    Custom,
-}
-
-/// Changelog category mapping
 #[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct ChangelogCategory {
+pub struct LanguageConfig {
-    /// Category title
+    /// Output language for messages (en, zh, etc.)
-    pub title: String,
+    #[serde(default = "default_output_language")]
+    pub output_language: String,
 
-    /// Commit types included in this category
+    /// Keep commit types in English
-    pub types: Vec<String>,
+    #[serde(default = "default_true")]
+    pub keep_types_english: bool,
+
+    /// Keep changelog types in English
+    #[serde(default = "default_true")]
+    pub keep_changelog_types_english: bool,
 }
 
-/// Theme configuration
+impl Default for LanguageConfig {
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct ThemeConfig {
-    /// Enable colors
-    #[serde(default = "default_true")]
-    pub colors: bool,
-
-    /// Enable icons
-    #[serde(default = "default_true")]
-    pub icons: bool,
-
-    /// Preferred date format
-    #[serde(default = "default_date_format")]
-    pub date_format: String,
-}
-
-impl Default for ThemeConfig {
     fn default() -> Self {
         Self {
-            colors: true,
+            output_language: default_output_language(),
-            icons: true,
+            keep_types_english: true,
-            date_format: default_date_format(),
+            keep_changelog_types_english: true,
+        }
+    }
+}
+
+/// Supported languages
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Language {
+    English,
+    Chinese,
+    Japanese,
+    Korean,
+    Spanish,
+    French,
+    German,
+}
+
+impl Language {
+    pub fn from_str(s: &str) -> Option<Self> {
+        match s.to_lowercase().as_str() {
+            "en" | "english" => Some(Language::English),
+            "zh" | "chinese" | "zh-cn" | "zh-tw" => Some(Language::Chinese),
+            "ja" | "japanese" => Some(Language::Japanese),
+            "ko" | "korean" => Some(Language::Korean),
+            "es" | "spanish" => Some(Language::Spanish),
+            "fr" | "french" => Some(Language::French),
+            "de" | "german" => Some(Language::German),
+            _ => None,
+        }
+    }
+
+    pub fn to_code(&self) -> &str {
+        match self {
+            Language::English => "en",
+            Language::Chinese => "zh",
+            Language::Japanese => "ja",
+            Language::Korean => "ko",
+            Language::Spanish => "es",
+            Language::French => "fr",
+            Language::German => "de",
+        }
+    }
+
+    pub fn display_name(&self) -> &str {
+        match self {
+            Language::English => "English",
+            Language::Chinese => "中文",
+            Language::Japanese => "日本語",
+            Language::Korean => "한국어",
+            Language::Spanish => "Español",
+            Language::French => "Français",
+            Language::German => "Deutsch",
         }
     }
 }
 
 // Default value functions
+
 fn default_version() -> String {
     "1".to_string()
 }
@@ -511,6 +301,10 @@ fn default_llm_provider() -> String {
     "ollama".to_string()
 }
 
+fn default_model() -> String {
+    "llama2".to_string()
+}
+
 fn default_max_tokens() -> u32 {
     500
 }
@@ -523,62 +317,10 @@ fn default_timeout() -> u64 {
     30
 }
 
-fn default_openai_model() -> String {
-    "gpt-4".to_string()
-}
-
-fn default_openai_base_url() -> String {
-    "https://api.openai.com/v1".to_string()
-}
-
-fn default_ollama_url() -> String {
-    "http://localhost:11434".to_string()
-}
-
-fn default_ollama_model() -> String {
-    "llama2".to_string()
-}
-
-fn default_anthropic_model() -> String {
-    "claude-3-sonnet-20240229".to_string()
-}
-
-fn default_kimi_model() -> String {
-    "moonshot-v1-8k".to_string()
-}
-
-fn default_kimi_base_url() -> String {
-    "https://api.moonshot.cn/v1".to_string()
-}
-
-fn default_deepseek_model() -> String {
-    "deepseek-chat".to_string()
-}
-
-fn default_deepseek_base_url() -> String {
-    "https://api.deepseek.com/v1".to_string()
-}
-
-fn default_openrouter_model() -> String {
-    "openai/gpt-3.5-turbo".to_string()
-}
-
-fn default_openrouter_base_url() -> String {
-    "https://openrouter.ai/api/v1".to_string()
-}
-
 fn default_commit_format() -> CommitFormat {
     CommitFormat::Conventional
 }
 
-fn default_max_subject_length() -> usize {
-    100
-}
-
-fn default_body_required_types() -> Vec<String> {
-    vec!["feat".to_string(), "fix".to_string()]
-}
-
 fn default_version_prefix() -> String {
     "v".to_string()
 }
@@ -587,12 +329,8 @@ fn default_changelog_path() -> String {
     "CHANGELOG.md".to_string()
 }
 
-fn default_changelog_format() -> ChangelogFormat {
+fn default_output_language() -> String {
-    ChangelogFormat::KeepAChangelog
+    "en".to_string()
-}
-
-fn default_date_format() -> String {
-    "%Y-%m-%d".to_string()
 }
 
 impl AppConfig {
@@ -611,8 +349,7 @@ impl AppConfig {
 
     /// Save configuration to file
     pub fn save(&self, path: &Path) -> Result<()> {
-        let content = toml::to_string_pretty(self)
+        let content = toml::to_string_pretty(self).context("Failed to serialize config")?;
-            .context("Failed to serialize config")?;
 
         if let Some(parent) = path.parent() {
             fs::create_dir_all(parent)
@@ -627,23 +364,59 @@ impl AppConfig {
 
     /// Get default config path
     pub fn default_path() -> Result<PathBuf> {
-        let config_dir = dirs::config_dir()
+        let config_dir = dirs::config_dir().context("Could not find config directory")?;
-            .context("Could not find config directory")?;
         Ok(config_dir.join("quicommit").join("config.toml"))
     }
+}
 
-    /// Get profile for a repository
+/// Encrypted PAT data for export
-    pub fn get_profile_for_repo(&self, repo_path: &str) -> Option<&GitProfile> {
+#[derive(Debug, Clone, Serialize, Deserialize)]
-        let profile_name = self.repo_profiles.get(repo_path)?;
+pub struct EncryptedPat {
-        self.profiles.get(profile_name)
+    /// Profile name
+    pub profile_name: String,
+    /// Service name (e.g., github, gitlab)
+    pub service: String,
+    /// User email (for keyring lookup)
+    pub user_email: String,
+    /// Encrypted token value
+    pub encrypted_token: String,
+}
+
+/// Export data container with optional encrypted PATs
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ExportData {
+    /// Configuration content (TOML string)
+    pub config: String,
+    /// Encrypted PATs (only present when exporting with encryption)
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub encrypted_pats: Vec<EncryptedPat>,
+    /// Export version for future compatibility
+    #[serde(default = "default_export_version")]
+    pub export_version: String,
+}
+
+fn default_export_version() -> String {
+    "1".to_string()
+}
+
+impl ExportData {
+    pub fn new(config: String) -> Self {
+        Self {
+            config,
+            encrypted_pats: Vec::new(),
+            export_version: default_export_version(),
+        }
     }
 
-    /// Set profile for a repository
+    pub fn with_encrypted_pats(config: String, pats: Vec<EncryptedPat>) -> Self {
-    pub fn set_profile_for_repo(&mut self, repo_path: String, profile_name: String) -> Result<()> {
+        Self {
-        if !self.profiles.contains_key(&profile_name) {
+            config,
-            anyhow::bail!("Profile '{}' does not exist", profile_name);
+            encrypted_pats: pats,
+            export_version: default_export_version(),
         }
-        self.repo_profiles.insert(repo_path, profile_name);
+    }
-        Ok(())
+
+    pub fn has_encrypted_pats(&self) -> bool {
+        !self.encrypted_pats.is_empty()
     }
 }

src/config/profile.rs

@@ -1,4 +1,4 @@
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 
@@ -120,11 +120,15 @@ impl GitProfile {
     /// Get signing key (from GPG config or direct)
     pub fn signing_key(&self) -> Option<&str> {
         self.signing_key
-            .as_ref()
+            .as_deref()
-            .map(|s| s.as_str())
             .or_else(|| self.gpg.as_ref().map(|g| g.key_id.as_str()))
     }
 
+    /// Get the commit template if set
+    pub fn commit_template(&self) -> Option<&str> {
+        self.settings.commit_template.as_deref()
+    }
+
     /// Add a token to the profile
     pub fn add_token(&mut self, service: String, token: TokenConfig) {
         self.tokens.insert(service, token);
@@ -160,43 +164,120 @@ impl GitProfile {
     pub fn apply_to_repo(&self, repo: &git2::Repository) -> Result<()> {
         let mut config = repo.config()?;
 
-        config.set_str("user.name", &self.user_name)?;
+        // Clean up old managed keys that the new profile won't set
-        config.set_str("user.email", &self.user_email)?;
+        if self.ssh.as_ref().and_then(|s| s.git_ssh_command()).is_none() {
-        
+            let _ = config.remove("core.sshCommand");
-        if let Some(key) = self.signing_key() {
+        }
-            config.set_str("user.signingkey", key)?;
+        if self.signing_key().is_none() {
-            
+            let _ = config.remove("user.signingkey");
-            if self.settings.auto_sign_commits {
+            let _ = config.remove("commit.gpgsign");
-                config.set_bool("commit.gpgsign", true)?;
+            let _ = config.remove("tag.gpgsign");
-            }
+        }
-            
+        if self.gpg.is_none() {
-            if self.settings.auto_sign_tags {
+            let _ = config.remove("gpg.program");
-                config.set_bool("tag.gpgsign", true)?;
-            }
         }
 
-        if let Some(ref ssh) = self.ssh {
+        // Apply new values; track whether we've written past name/email for rollback
-            if let Some(ref key_path) = ssh.private_key_path {
+        let mut wrote_optional = false;
-                config.set_str("core.sshCommand", 
+        let result = (|| -> Result<()> {
-                    &format!("ssh -i {}", key_path.display()))?;
+            config.set_str("user.name", &self.user_name)?;
+            config.set_str("user.email", &self.user_email)?;
+
+            if let Some(ref gpg) = self.gpg {
+                config.set_str("gpg.program", &gpg.program)?;
+                wrote_optional = true;
             }
+
+            if let Some(key) = self.signing_key() {
+                config.set_str("user.signingkey", key)?;
+                if self.settings.auto_sign_commits {
+                    config.set_bool("commit.gpgsign", true)?;
+                }
+                if self.settings.auto_sign_tags {
+                    config.set_bool("tag.gpgsign", true)?;
+                }
+                wrote_optional = true;
+            }
+
+            if let Some(ref ssh) = self.ssh {
+                if let Some(ssh_cmd) = ssh.git_ssh_command() {
+                    config.set_str("core.sshCommand", &ssh_cmd)?;
+                    wrote_optional = true;
+                }
+            }
+
+            Ok(())
+        })();
+
+        if result.is_err() && wrote_optional {
+            let _ = config.remove("core.sshCommand");
+            let _ = config.remove("user.signingkey");
+            let _ = config.remove("commit.gpgsign");
+            let _ = config.remove("tag.gpgsign");
+            let _ = config.remove("gpg.program");
         }
 
-        Ok(())
+        result
     }
 
     /// Apply this profile globally
     pub fn apply_global(&self) -> Result<()> {
         let mut config = git2::Config::open_default()?;
 
-        config.set_str("user.name", &self.user_name)?;
+        // Clean up old managed keys that the new profile won't set
-        config.set_str("user.email", &self.user_email)?;
+        if self.ssh.as_ref().and_then(|s| s.git_ssh_command()).is_none() {
-        
+            let _ = config.remove("core.sshCommand");
-        if let Some(key) = self.signing_key() {
+        }
-            config.set_str("user.signingkey", key)?;
+        if self.signing_key().is_none() {
+            let _ = config.remove("user.signingkey");
+            let _ = config.remove("commit.gpgsign");
+            let _ = config.remove("tag.gpgsign");
+        }
+        if self.gpg.is_none() {
+            let _ = config.remove("gpg.program");
         }
 
-        Ok(())
+        // Apply new values; track whether we've written past name/email for rollback
+        let mut wrote_optional = false;
+        let result = (|| -> Result<()> {
+            config.set_str("user.name", &self.user_name)?;
+            config.set_str("user.email", &self.user_email)?;
+
+            if let Some(ref gpg) = self.gpg {
+                config.set_str("gpg.program", &gpg.program)?;
+                wrote_optional = true;
+            }
+
+            if let Some(key) = self.signing_key() {
+                config.set_str("user.signingkey", key)?;
+                if self.settings.auto_sign_commits {
+                    config.set_bool("commit.gpgsign", true)?;
+                }
+                if self.settings.auto_sign_tags {
+                    config.set_bool("tag.gpgsign", true)?;
+                }
+                wrote_optional = true;
+            }
+
+            if let Some(ref ssh) = self.ssh {
+                if let Some(ssh_cmd) = ssh.git_ssh_command() {
+                    config.set_str("core.sshCommand", &ssh_cmd)?;
+                    wrote_optional = true;
+                }
+            }
+
+            Ok(())
+        })();
+
+        if result.is_err() && wrote_optional {
+            let _ = config.remove("core.sshCommand");
+            let _ = config.remove("user.signingkey");
+            let _ = config.remove("commit.gpgsign");
+            let _ = config.remove("tag.gpgsign");
+            let _ = config.remove("gpg.program");
+        }
+
+        result
     }
 
     /// Compare with current git configuration
@@ -231,15 +312,15 @@ impl GitProfile {
             });
         }
 
-        if let Some(profile_key) = self.signing_key() {
+        if let Some(profile_key) = self.signing_key()
-            if git_signing_key.as_deref() != Some(profile_key) {
+            && git_signing_key.as_deref() != Some(profile_key)
-                comparison.matches = false;
+        {
-                comparison.differences.push(ConfigDifference {
+            comparison.matches = false;
-                    key: "user.signingkey".to_string(),
+            comparison.differences.push(ConfigDifference {
-                    profile_value: profile_key.to_string(),
+                key: "user.signingkey".to_string(),
-                    git_value: git_signing_key.unwrap_or_else(|| "<not set>".to_string()),
+                profile_value: profile_key.to_string(),
-                });
+                git_value: git_signing_key.unwrap_or_else(|| "<not set>".to_string()),
-            }
+            });
         }
 
         Ok(comparison)
@@ -247,7 +328,7 @@ impl GitProfile {
 }
 
 /// Profile settings
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
 pub struct ProfileSettings {
     /// Automatically sign commits
     #[serde(default)]
@@ -274,19 +355,6 @@ pub struct ProfileSettings {
     pub commit_template: Option<String>,
 }
 
-impl Default for ProfileSettings {
-    fn default() -> Self {
-        Self {
-            auto_sign_commits: false,
-            auto_sign_tags: false,
-            default_commit_format: None,
-            repo_patterns: vec![],
-            llm_provider: None,
-            commit_template: None,
-        }
-    }
-}
-
 /// SSH configuration
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct SshConfig {
@@ -316,29 +384,84 @@ pub struct SshConfig {
 impl SshConfig {
     /// Validate SSH configuration
     pub fn validate(&self) -> Result<()> {
-        if let Some(ref path) = self.private_key_path {
+        if let Some(ref path) = self.private_key_path
-            if !path.exists() {
+            && !path.exists()
-                bail!("SSH private key does not exist: {:?}", path);
+        {
-            }
+            bail!("SSH private key does not exist: {:?}", path);
         }
 
-        if let Some(ref path) = self.public_key_path {
+        if let Some(ref path) = self.public_key_path
-            if !path.exists() {
+            && !path.exists()
-                bail!("SSH public key does not exist: {:?}", path);
+        {
-            }
+            bail!("SSH public key does not exist: {:?}", path);
+        }
+
+        if let Some(ref path) = self.known_hosts_file
+            && !path.exists()
+        {
+            bail!("SSH known_hosts file does not exist: {:?}", path);
         }
 
         Ok(())
     }
 
-    /// Get SSH command for git
+    /// Get the effective public key path, deriving from private key if not explicitly set
+    pub fn effective_public_key_path(&self) -> Option<std::path::PathBuf> {
+        self.public_key_path.clone().or_else(|| {
+            self.private_key_path.as_ref().map(|pk| {
+                let mut pub_path = pk.clone();
+                let ext = pk
+                    .extension()
+                    .map(|e| format!("{}.pub", e.to_string_lossy()))
+                    .unwrap_or_else(|| "pub".to_string());
+                pub_path.set_extension(&ext);
+                pub_path
+            })
+        })
+    }
+
+    /// Get the effective SSH command for git config
+    ///
+    /// Priority: custom `ssh_command` > constructed from key/agent/known_hosts
     pub fn git_ssh_command(&self) -> Option<String> {
         if let Some(ref cmd) = self.ssh_command {
-            Some(cmd.clone())
+            return Some(cmd.clone());
-        } else if let Some(ref key_path) = self.private_key_path {
+        }
-            Some(format!("ssh -i '{}'", key_path.display()))
+
-        } else {
+        let mut parts: Vec<String> = vec!["ssh".to_string()];
+
+        if self.agent_forwarding {
+            parts.push("-A".to_string());
+        }
+
+        if let Some(ref key_path) = self.private_key_path {
+            let path_str = key_path.display().to_string();
+            #[cfg(target_os = "windows")]
+            {
+                parts.push(format!("-i \"{}\"", path_str.replace('\\', "/")));
+            }
+            #[cfg(not(target_os = "windows"))]
+            {
+                parts.push(format!("-i '{}'", path_str));
+            }
+        }
+
+        if let Some(ref known_hosts) = self.known_hosts_file {
+            let kh_str = known_hosts.display().to_string();
+            #[cfg(target_os = "windows")]
+            {
+                parts.push(format!("-o UserKnownHostsFile=\"{}\"", kh_str.replace('\\', "/")));
+            }
+            #[cfg(not(target_os = "windows"))]
+            {
+                parts.push(format!("-o UserKnownHostsFile='{}'", kh_str));
+            }
+        }
+
+        if parts.len() == 1 {
             None
+        } else {
+            Some(parts.join(" "))
         }
     }
 }
@@ -382,10 +505,6 @@ impl GpgConfig {
 /// Token configuration for services (GitHub, GitLab, etc.)
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct TokenConfig {
-    /// Token value (encrypted)
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub token: Option<String>,
-
     /// Token type (personal, oauth, etc.)
     #[serde(default)]
     pub token_type: TokenType,
@@ -405,25 +524,41 @@ pub struct TokenConfig {
     /// Description
     #[serde(default)]
     pub description: Option<String>,
+
+    /// Indicates if a token is stored in keyring
+    #[serde(default)]
+    pub has_token: bool,
 }
 
 impl TokenConfig {
-    /// Create a new token config
+    /// Create a new token config (token stored separately in keyring)
-    pub fn new(token: String, token_type: TokenType) -> Self {
+    pub fn new(token_type: TokenType) -> Self {
         Self {
-            token: Some(token),
             token_type,
             scopes: vec![],
             expires_at: None,
             last_used: None,
             description: None,
+            has_token: true,
+        }
+    }
+
+    /// Create a new token config without token
+    pub fn without_token(token_type: TokenType) -> Self {
+        Self {
+            token_type,
+            scopes: vec![],
+            expires_at: None,
+            last_used: None,
+            description: None,
+            has_token: false,
         }
     }
 
     /// Validate token configuration
     pub fn validate(&self) -> Result<()> {
-        if self.token.is_none() && self.token_type != TokenType::None {
+        if !self.has_token && self.token_type != TokenType::None {
-            bail!("Token value is required for {:?}", self.token_type);
+            bail!("Token is required for {:?}", self.token_type);
         }
         Ok(())
     }
@@ -432,12 +567,19 @@ impl TokenConfig {
     pub fn record_usage(&mut self) {
         self.last_used = Some(chrono::Utc::now().to_rfc3339());
     }
+
+    /// Mark that a token is stored
+    pub fn set_has_token(&mut self, has_token: bool) {
+        self.has_token = has_token;
+    }
 }
 
 /// Token type
 #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
 #[serde(rename_all = "lowercase")]
+#[derive(Default)]
 pub enum TokenType {
+    #[default]
     None,
     Personal,
     OAuth,
@@ -445,12 +587,6 @@ pub enum TokenType {
     App,
 }
 
-impl Default for TokenType {
-    fn default() -> Self {
-        Self::None
-    }
-}
-
 impl std::fmt::Display for TokenType {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
@@ -496,7 +632,11 @@ pub struct ConfigDifference {
 }
 
 fn default_gpg_program() -> String {
-    "gpg".to_string()
+    if cfg!(target_os = "windows") {
+        "gpg.exe".to_string()
+    } else {
+        "gpg".to_string()
+    }
 }
 
 fn default_true() -> bool {
@@ -576,9 +716,15 @@ impl GitProfileBuilder {
     }
 
     pub fn build(self) -> Result<GitProfile> {
-        let name = self.name.ok_or_else(|| anyhow::anyhow!("Name is required"))?;
+        let name = self
-        let user_name = self.user_name.ok_or_else(|| anyhow::anyhow!("User name is required"))?;
+            .name
-        let user_email = self.user_email.ok_or_else(|| anyhow::anyhow!("User email is required"))?;
+            .ok_or_else(|| anyhow::anyhow!("Name is required"))?;
+        let user_name = self
+            .user_name
+            .ok_or_else(|| anyhow::anyhow!("User name is required"))?;
+        let user_email = self
+            .user_email
+            .ok_or_else(|| anyhow::anyhow!("User email is required"))?;
 
         Ok(GitProfile {
             name,
@@ -630,7 +776,7 @@ mod tests {
 
     #[test]
     fn test_token_config() {
-        let token = TokenConfig::new("test-token".to_string(), TokenType::Personal);
+        let token = TokenConfig::new(TokenType::Personal);
         assert!(token.validate().is_ok());
     }
 }

src/generator/mod.rs

@@ -1,25 +1,60 @@
-use crate::config::{CommitFormat, LlmConfig};
+use crate::config::manager::ConfigManager;
+use crate::config::{CommitFormat, Language};
 use crate::git::{CommitInfo, GitRepo};
 use crate::llm::{GeneratedCommit, LlmClient};
 use anyhow::{Context, Result};
-use chrono::Utc;
 
 /// Content generator using LLM
 pub struct ContentGenerator {
     llm_client: LlmClient,
+    template: Option<String>,
 }
 
 impl ContentGenerator {
     /// Create new content generator
-    pub async fn new(config: &LlmConfig) -> Result<Self> {
+    pub async fn new(manager: &ConfigManager) -> Result<Self> {
-        let llm_client = LlmClient::from_config(config).await?;
+        Self::new_with_think(manager, false, None).await
+    }
 
-        // Check if provider is available
+    /// Create new content generator with thinking override and optional commit template
-        if !llm_client.is_available().await {
+    pub async fn new_with_think(
-            anyhow::bail!("LLM provider '{}' is not available", config.provider);
+        manager: &ConfigManager,
+        think_override: bool,
+        template: Option<String>,
+    ) -> Result<Self> {
+        let mut thinking_enabled = if think_override {
+            true
+        } else {
+            manager.config().llm.thinking_enabled
+        };
+
+        // Validate thinking support per provider
+        if thinking_enabled {
+            let provider = manager.llm_provider();
+            if !Self::supports_thinking(provider) {
+                eprintln!(
+                    "Warning: Provider '{}' does not support thinking mode. \
+                     Disabling thinking for this invocation.",
+                    provider
+                );
+                thinking_enabled = false;
+            }
         }
 
-        Ok(Self { llm_client })
+        let llm_client = LlmClient::from_config_with_think(manager, thinking_enabled).await?;
+
+        if !llm_client.is_available().await {
+            anyhow::bail!("LLM provider '{}' is not available", manager.llm_provider());
+        }
+
+        Ok(Self {
+            llm_client,
+            template,
+        })
+    }
+
+    fn supports_thinking(provider: &str) -> bool {
+        matches!(provider, "deepseek" | "kimi" | "anthropic" | "openai")
     }
 
     /// Generate commit message from diff
@@ -27,16 +62,20 @@ impl ContentGenerator {
         &self,
         diff: &str,
         format: CommitFormat,
+        language: Language,
     ) -> Result<GeneratedCommit> {
         // Truncate diff if too long
         let max_diff_len = 4000;
         let truncated_diff = if diff.len() > max_diff_len {
-            format!("{}\n... (truncated)", &diff[..max_diff_len])
+            let boundary = diff.floor_char_boundary(max_diff_len);
+            format!("{}\n... (truncated)", &diff[..boundary])
         } else {
             diff.to_string()
         };
 
-        self.llm_client.generate_commit_message(&truncated_diff, format).await
+        self.llm_client
+            .generate_commit_message(&truncated_diff, format, language, self.template.as_deref())
+            .await
     }
 
     /// Generate commit message from repository changes
@@ -44,15 +83,17 @@ impl ContentGenerator {
         &self,
         repo: &GitRepo,
         format: CommitFormat,
+        language: Language,
     ) -> Result<GeneratedCommit> {
-        let diff = repo.get_staged_diff()
+        let diff = repo
+            .get_staged_diff_sorted()
             .context("Failed to get staged diff")?;
 
         if diff.is_empty() {
             anyhow::bail!("No staged changes to generate commit from");
         }
 
-        self.generate_commit_message(&diff, format).await
+        self.generate_commit_message(&diff, format, language).await
     }
 
     /// Generate tag message
@@ -60,13 +101,14 @@ impl ContentGenerator {
         &self,
         version: &str,
         commits: &[CommitInfo],
+        language: Language,
     ) -> Result<String> {
-        let commit_messages: Vec<String> = commits
+        let commit_messages: Vec<String> =
-            .iter()
+            commits.iter().map(|c| c.subject().to_string()).collect();
-            .map(|c| c.subject().to_string())
-            .collect();
 
-        self.llm_client.generate_tag_message(version, &commit_messages).await
+        self.llm_client
+            .generate_tag_message(version, &commit_messages, language)
+            .await
     }
 
     /// Generate changelog entry
@@ -74,6 +116,7 @@ impl ContentGenerator {
         &self,
         version: &str,
         commits: &[CommitInfo],
+        language: Language,
     ) -> Result<String> {
         let typed_commits: Vec<(String, String)> = commits
             .iter()
@@ -83,7 +126,9 @@ impl ContentGenerator {
             })
             .collect();
 
-        self.llm_client.generate_changelog_entry(version, &typed_commits).await
+        self.llm_client
+            .generate_changelog_entry(version, &typed_commits, language)
+            .await
     }
 
     /// Generate changelog from repository
@@ -92,6 +137,7 @@ impl ContentGenerator {
         repo: &GitRepo,
         version: &str,
         from_tag: Option<&str>,
+        language: Language,
     ) -> Result<String> {
         let commits = if let Some(tag) = from_tag {
             repo.get_commits_between(tag, "HEAD")?
@@ -99,7 +145,8 @@ impl ContentGenerator {
             repo.get_commits(50)?
         };
 
-        self.generate_changelog_entry(version, &commits).await
+        self.generate_changelog_entry(version, &commits, language)
+            .await
     }
 
     /// Interactive commit generation with user feedback
@@ -107,11 +154,11 @@ impl ContentGenerator {
         &self,
         repo: &GitRepo,
         format: CommitFormat,
+        language: Language,
     ) -> Result<GeneratedCommit> {
-        use dialoguer::{Confirm, Select};
+        use dialoguer::Select;
-        use console::Term;
 
-        let diff = repo.get_staged_diff()?;
+        let diff = repo.get_staged_diff_sorted()?;
 
         if diff.is_empty() {
             anyhow::bail!("No staged changes");
@@ -126,7 +173,9 @@ impl ContentGenerator {
 
         // Generate initial commit
         println!("\nGenerating commit message...");
-        let mut generated = self.generate_commit_message(&diff, format).await?;
+        let mut generated = self
+            .generate_commit_message(&diff, format, language)
+            .await?;
 
         loop {
             println!("\n{}", "─".repeat(60));
@@ -139,7 +188,6 @@ impl ContentGenerator {
                 "✓ Accept and commit",
                 "🔄 Regenerate",
                 "✏️  Edit",
-                "📋 Copy to clipboard",
                 "❌ Cancel",
             ];
 
@@ -153,30 +201,21 @@ impl ContentGenerator {
                 0 => return Ok(generated),
                 1 => {
                     println!("Regenerating...");
-                    generated = self.generate_commit_message(&diff, format).await?;
+                    generated = self
+                        .generate_commit_message(&diff, format, language)
+                        .await?;
                 }
                 2 => {
                     let edited = crate::utils::editor::edit_content(&generated.to_conventional())?;
                     generated = self.parse_edited_commit(&edited, format)?;
                 }
-                3 => {
+                3 => anyhow::bail!("Cancelled by user"),
-                    #[cfg(feature = "clipboard")]
-                    {
-                        arboard::Clipboard::new()?.set_text(generated.to_conventional())?;
-                        println!("Copied to clipboard!");
-                    }
-                    #[cfg(not(feature = "clipboard"))]
-                    {
-                        println!("Clipboard feature not enabled");
-                    }
-                }
-                4 => anyhow::bail!("Cancelled by user"),
                 _ => {}
             }
         }
     }
 
-    fn parse_edited_commit(&self, edited: &str, format: CommitFormat) -> Result<GeneratedCommit> {
+    fn parse_edited_commit(&self, edited: &str, _format: CommitFormat) -> Result<GeneratedCommit> {
         let parsed = crate::git::commit::parse_commit_message(edited);
 
         Ok(GeneratedCommit {
@@ -190,115 +229,8 @@ impl ContentGenerator {
     }
 }
 
-/// Batch generator for multiple operations
-pub struct BatchGenerator {
-    generator: ContentGenerator,
-}
-
-impl BatchGenerator {
-    /// Create new batch generator
-    pub async fn new(config: &LlmConfig) -> Result<Self> {
-        let generator = ContentGenerator::new(config).await?;
-        Ok(Self { generator })
-    }
-
-    /// Generate commits for multiple repositories
-    pub async fn generate_commits_batch<'a>(
-        &self,
-        repos: &[&'a GitRepo],
-        format: CommitFormat,
-    ) -> Vec<(&'a str, Result<GeneratedCommit>)> {
-        let mut results = vec![];
-        
-        for repo in repos {
-            let result = self.generator.generate_commit_from_repo(repo, format).await;
-            results.push((repo.path().to_str().unwrap_or("unknown"), result));
-        }
-        
-        results
-    }
-
-    /// Generate changelog for multiple versions
-    pub async fn generate_changelog_batch(
-        &self,
-        repo: &GitRepo,
-        versions: &[String],
-    ) -> Vec<(String, Result<String>)> {
-        let mut results = vec![];
-        
-        // Get all tags
-        let tags = repo.get_tags().unwrap_or_default();
-        
-        for (i, version) in versions.iter().enumerate() {
-            let from_tag = if i + 1 < tags.len() {
-                tags.get(i + 1).map(|t| t.name.as_str())
-            } else {
-                None
-            };
-            
-            let result = self.generator.generate_changelog_from_repo(repo, version, from_tag).await;
-            results.push((version.clone(), result));
-        }
-        
-        results
-    }
-}
-
-/// Generator options
-#[derive(Debug, Clone)]
-pub struct GeneratorOptions {
-    pub auto_commit: bool,
-    pub auto_push: bool,
-    pub interactive: bool,
-    pub dry_run: bool,
-}
-
-impl Default for GeneratorOptions {
-    fn default() -> Self {
-        Self {
-            auto_commit: false,
-            auto_push: false,
-            interactive: true,
-            dry_run: false,
-        }
-    }
-}
-
-/// Generate with options
-pub async fn generate_with_options(
-    repo: &GitRepo,
-    config: &LlmConfig,
-    format: CommitFormat,
-    options: GeneratorOptions,
-) -> Result<Option<GeneratedCommit>> {
-    let generator = ContentGenerator::new(config).await?;
-    
-    let generated = if options.interactive {
-        generator.generate_commit_interactive(repo, format).await?
-    } else {
-        generator.generate_commit_from_repo(repo, format).await?
-    };
-    
-    if options.dry_run {
-        println!("{}", generated.to_conventional());
-        return Ok(Some(generated));
-    }
-    
-    if options.auto_commit {
-        let message = generated.to_conventional();
-        repo.commit(&message, false)?;
-        
-        if options.auto_push {
-            repo.push("origin", "HEAD")?;
-        }
-    }
-    
-    Ok(Some(generated))
-}
-
 /// Fallback generators when LLM is not available
 pub mod fallback {
-    use super::*;
     use crate::git::commit::create_date_commit_message;
 
     /// Generate simple commit message without LLM
@@ -323,9 +255,13 @@ pub mod fallback {
             f.ends_with(".rs") || f.ends_with(".py") || f.ends_with(".js") || f.ends_with(".ts")
         });
 
-        let has_docs = files.iter().any(|f| f.ends_with(".md") || f.contains("README"));
+        let has_docs = files
+            .iter()
+            .any(|f| f.ends_with(".md") || f.contains("README"));
 
-        let has_tests = files.iter().any(|f| f.contains("test") || f.contains("spec"));
+        let has_tests = files
+            .iter()
+            .any(|f| f.contains("test") || f.contains("spec"));
 
         if has_tests {
             "test: update tests".to_string()

src/git/changelog.rs

@@ -1,10 +1,19 @@
 use super::{CommitInfo, GitRepo};
 use anyhow::{Context, Result};
-use chrono::{DateTime, TimeZone, Utc};
+use chrono::{DateTime, Utc};
 use std::collections::HashMap;
 use std::fs;
 use std::path::Path;
 
+pub const CHANGELOG_HEADER: &str = r#"# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+"#;
+
 /// Changelog generator
 pub struct ChangelogGenerator {
     format: ChangelogFormat,
@@ -86,9 +95,7 @@ impl ChangelogGenerator {
             ChangelogFormat::GitHubReleases => {
                 self.generate_github_releases(version, date, commits)
             }
-            ChangelogFormat::Custom => {
+            ChangelogFormat::Custom => self.generate_custom(version, date, commits),
-                self.generate_custom(version, date, commits)
-            }
         }
     }
 
@@ -109,9 +116,10 @@ impl ChangelogGenerator {
         };
 
         let new_content = if existing.is_empty() {
-            format!("# Changelog\n\n{}", entry)
+            format!("{}{}", CHANGELOG_HEADER, entry)
-        } else {
+        } else if existing.starts_with(CHANGELOG_HEADER) {
-            // Find position after header
+            format!("{}{}", CHANGELOG_HEADER, entry)
+        } else if existing.starts_with("# Changelog") {
             let lines: Vec<&str> = existing.lines().collect();
             let mut header_end = 0;
 
@@ -129,6 +137,8 @@ impl ChangelogGenerator {
             let rest = lines[header_end..].join("\n");
 
             format!("{}\n{}\n{}", header, entry, rest)
+        } else {
+            format!("{}{}", CHANGELOG_HEADER, entry)
         };
 
         fs::write(changelog_path, new_content)
@@ -147,7 +157,7 @@ impl ChangelogGenerator {
         let mut output = format!("## [{}] - {}\n\n", version, date_str);
 
         if self.group_by_type {
-            let grouped = self.group_commits(commits);
+            let _grouped = self.group_commits(commits);
 
             // Standard categories
             let categories = vec![
@@ -218,11 +228,11 @@ impl ChangelogGenerator {
 
     fn generate_github_releases(
         &self,
-        version: &str,
+        _version: &str,
         _date: DateTime<Utc>,
         commits: &[CommitInfo],
     ) -> Result<String> {
-        let mut output = format!("## What's Changed\n\n");
+        let mut output = "## What's Changed\n\n".to_string();
 
         // Group by type
         let mut features = vec![];
@@ -232,8 +242,6 @@ impl ChangelogGenerator {
         let mut breaking = vec![];
 
         for commit in commits {
-            let msg = commit.subject();
-            
             if commit.message.contains("BREAKING CHANGE") {
                 breaking.push(commit);
             }
@@ -347,7 +355,12 @@ impl ChangelogGenerator {
     }
 
     fn format_commit_github(&self, commit: &CommitInfo) -> String {
-        format!("- {} by @{} in {}\n", commit.subject(), commit.author, &commit.short_id)
+        format!(
+            "- {} by @{} in {}\n",
+            commit.subject(),
+            commit.author,
+            &commit.short_id
+        )
     }
 
     fn group_commits<'a>(&self, commits: &'a [CommitInfo]) -> HashMap<String, Vec<&'a CommitInfo>> {
@@ -370,8 +383,7 @@ impl Default for ChangelogGenerator {
 
 /// Read existing changelog
 pub fn read_changelog(path: &Path) -> Result<String> {
-    fs::read_to_string(path)
+    fs::read_to_string(path).with_context(|| format!("Failed to read changelog: {:?}", path))
-        .with_context(|| format!("Failed to read changelog: {:?}", path))
 }
 
 /// Initialize new changelog file
@@ -380,16 +392,7 @@ pub fn init_changelog(path: &Path) -> Result<()> {
         anyhow::bail!("Changelog already exists at {:?}", path);
     }
 
-    let content = r#"# Changelog
+    fs::write(path, CHANGELOG_HEADER)
-
-All notable changes to this project will be documented in this file.
-
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-
-"#;
-    
-    fs::write(path, content)
         .with_context(|| format!("Failed to create changelog: {:?}", path))?;
 
     Ok(())
@@ -406,17 +409,13 @@ pub fn generate_from_history(
     if let Some(from) = from_tag {
         repo.get_commits_between(from, to_ref)
     } else {
-        // Get last 50 commits if no tag specified
+        // Get all commits from the beginning (no from_tag = initial changelog)
-        repo.get_commits(50)
+        repo.get_commits(usize::MAX)
     }
 }
 
 /// Update version links in changelog
-pub fn update_version_links(
+pub fn update_version_links(changelog: &str, version: &str, compare_url: &str) -> String {
-    changelog: &str,
-    version: &str,
-    compare_url: &str,
-) -> String {
     // Add version link at the end of changelog
     format!("{}\n[{}]: {}\n", changelog, version, compare_url)
 }
@@ -426,17 +425,16 @@ pub fn parse_versions(changelog: &str) -> Vec<(String, String)> {
     let mut versions = vec![];
 
     for line in changelog.lines() {
-        if line.starts_with("## [") {
+        if line.starts_with("## [")
-            if let Some(start) = line.find('[') {
+            && let Some(start) = line.find('[')
-                if let Some(end) = line.find(']') {
+            && let Some(end) = line.find(']')
-                    let version = &line[start + 1..end];
+        {
-                    if version != "Unreleased" {
+            let version = &line[start + 1..end];
-                        if let Some(date_start) = line.find(" - ") {
+            if version != "Unreleased"
-                            let date = &line[date_start + 3..].trim();
+                && let Some(date_start) = line.find(" - ")
-                            versions.push((version.to_string(), date.to_string()));
+            {
-                        }
+                let date = &line[date_start + 3..].trim();
-                    }
+                versions.push((version.to_string(), date.to_string()));
-                }
             }
         }
     }
@@ -478,3 +476,137 @@ impl ChangelogEntry {
         self
     }
 }
+
+/// Extract version strings from Keep a Changelog content.
+/// Returns versions sorted by semver descending (highest first).
+/// Excludes "Unreleased".
+pub fn parse_changelog_versions(content: &str) -> Vec<String> {
+    use semver::Version;
+
+    let mut versions: Vec<String> = vec![];
+    for line in content.lines() {
+        let trimmed = line.trim();
+        if trimmed.starts_with("## [") {
+            if let Some(end) = trimmed.find(']') {
+                let version = &trimmed[4..end];
+                if version != "Unreleased" && !version.is_empty() {
+                    versions.push(version.to_string());
+                }
+            }
+        }
+    }
+    // Sort by semver descending so highest version is first
+    versions.sort_by(|a, b| {
+        match (Version::parse(a), Version::parse(b)) {
+            (Ok(va), Ok(vb)) => vb.cmp(&va),
+            (Ok(_), Err(_)) => std::cmp::Ordering::Less,
+            (Err(_), Ok(_)) => std::cmp::Ordering::Greater,
+            (Err(_), Err(_)) => std::cmp::Ordering::Equal,
+        }
+    });
+    versions
+}
+
+/// Insert a new changelog entry into existing changelog content.
+/// The new entry is placed after the header and before the first existing version section.
+/// If no existing version sections are found, the new entry is appended after the header.
+pub fn insert_changelog_entry(existing: &str, new_entry: &str) -> String {
+    // Find the first version section (## [x.y.z])
+    if let Some(first_ver_pos) = existing.find("\n## [") {
+        let (header, rest) = existing.split_at(first_ver_pos);
+        // Ensure new_entry ends with a blank line before the next section
+        let entry = new_entry.trim_end();
+        format!("{}\n{}\n{}", header.trim_end(), entry, rest)
+    } else {
+        // No existing version sections — append after header
+        format!("{}\n{}", existing.trim_end(), new_entry.trim_end())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_changelog_versions_extracts_versions() {
+        let content = "# Changelog\n\n## [0.2.0] - 2024-03-01\n### Added\n- feature B\n\n## [0.1.0] - 2024-02-01\n### Added\n- feature A\n";
+        let versions = parse_changelog_versions(content);
+        assert_eq!(versions, vec!["0.2.0", "0.1.0"]);
+    }
+
+    #[test]
+    fn test_parse_changelog_versions_sorts_highest_first() {
+        // Versions in reversed order — should still return highest first
+        let content = "# Changelog\n\n## [0.1.0] - 2024-02-01\n### Added\n- feature A\n\n## [0.3.0] - 2024-04-01\n### Added\n- feature C\n\n## [0.2.0] - 2024-03-01\n### Added\n- feature B\n";
+        let versions = parse_changelog_versions(content);
+        assert_eq!(versions, vec!["0.3.0", "0.2.0", "0.1.0"]);
+    }
+
+    #[test]
+    fn test_parse_changelog_versions_excludes_unreleased() {
+        let content = "# Changelog\n\n## [Unreleased]\n### Added\n- wip\n\n## [0.1.0] - 2024-02-01\n### Added\n- feature A\n";
+        let versions = parse_changelog_versions(content);
+        assert_eq!(versions, vec!["0.1.0"]);
+    }
+
+    #[test]
+    fn test_parse_changelog_versions_empty_content() {
+        let versions = parse_changelog_versions("");
+        assert!(versions.is_empty());
+    }
+
+    #[test]
+    fn test_parse_changelog_versions_no_versions() {
+        let content = "# Changelog\n\nSome description text.\n";
+        let versions = parse_changelog_versions(content);
+        assert!(versions.is_empty());
+    }
+
+    #[test]
+    fn test_insert_changelog_entry_between_header_and_existing() {
+        let existing = "# Changelog\n\nAll notable changes...\n\n## [0.1.0] - 2024-02-01\n### Added\n- feature A\n";
+        let new_entry = "## [0.2.0] - 2024-03-01\n### Added\n- feature B\n";
+        let result = insert_changelog_entry(existing, new_entry);
+
+        // New entry should appear after header, before 0.1.0
+        assert!(result.contains("## [0.2.0]"));
+        assert!(result.contains("## [0.1.0]"));
+        let pos_new = result.find("## [0.2.0]").unwrap();
+        let pos_old = result.find("## [0.1.0]").unwrap();
+        assert!(pos_new < pos_old, "new version should be before old version");
+    }
+
+    #[test]
+    fn test_insert_changelog_entry_preserves_all_existing_content() {
+        let existing = "# Changelog\n\nAll notable changes...\n\n## [0.2.0] - 2024-03-01\n### Added\n- feature B\n\n## [0.1.0] - 2024-02-01\n### Added\n- feature A\n";
+        let new_entry = "## [0.3.0] - 2024-04-01\n### Added\n- feature C\n";
+        let result = insert_changelog_entry(existing, new_entry);
+
+        assert!(result.contains("## [0.3.0]"));
+        assert!(result.contains("## [0.2.0]"));
+        assert!(result.contains("## [0.1.0]"));
+        assert!(result.contains("feature A"), "oldest content preserved");
+        assert!(result.contains("feature B"), "middle content preserved");
+        assert!(result.contains("feature C"), "new content present");
+    }
+
+    #[test]
+    fn test_insert_changelog_entry_empty_existing() {
+        let existing = "# Changelog\n\nAll notable changes...\n\n";
+        let new_entry = "## [0.1.0] - 2024-02-01\n### Added\n- feature A\n";
+        let result = insert_changelog_entry(existing, new_entry);
+        assert!(result.contains("## [0.1.0]"));
+        assert!(result.contains("# Changelog"));
+    }
+
+    #[test]
+    fn test_insert_changelog_entry_extra_blank_lines_in_header() {
+        let existing = "# Changelog\n\n\n\n## [0.1.0] - 2024-02-01\n### Added\n- feature A\n";
+        let new_entry = "## [0.2.0] - 2024-03-01\n### Added\n- feature B\n";
+        let result = insert_changelog_entry(existing, new_entry);
+
+        let pos_new = result.find("## [0.2.0]").unwrap();
+        let pos_old = result.find("## [0.1.0]").unwrap();
+        assert!(pos_new < pos_old, "new version should be before old version");
+    }
+}

src/git/commit.rs

@@ -1,5 +1,5 @@
 use super::GitRepo;
-use anyhow::{bail, Context, Result};
+use anyhow::{Result, bail};
 use chrono::Local;
 
 /// Commit builder for creating commits
@@ -9,11 +9,11 @@ pub struct CommitBuilder {
     description: Option<String>,
     body: Option<String>,
     footer: Option<String>,
+    message: Option<String>,
     breaking: bool,
     sign: bool,
     amend: bool,
     no_verify: bool,
-    dry_run: bool,
     format: crate::config::CommitFormat,
 }
 
@@ -26,11 +26,11 @@ impl CommitBuilder {
             description: None,
             body: None,
             footer: None,
+            message: None,
             breaking: false,
             sign: false,
             amend: false,
             no_verify: false,
-            dry_run: false,
             format: crate::config::CommitFormat::Conventional,
         }
     }
@@ -47,6 +47,12 @@ impl CommitBuilder {
         self
     }
 
+    /// Set scope (optional)
+    pub fn scope_opt(mut self, scope: Option<String>) -> Self {
+        self.scope = scope;
+        self
+    }
+
     /// Set description
     pub fn description(mut self, description: impl Into<String>) -> Self {
         self.description = Some(description.into());
@@ -59,12 +65,24 @@ impl CommitBuilder {
         self
     }
 
+    /// Set body (optional)
+    pub fn body_opt(mut self, body: Option<String>) -> Self {
+        self.body = body;
+        self
+    }
+
     /// Set footer
     pub fn footer(mut self, footer: impl Into<String>) -> Self {
         self.footer = Some(footer.into());
         self
     }
 
+    /// Set message
+    pub fn message(mut self, message: impl Into<String>) -> Self {
+        self.message = Some(message.into());
+        self
+    }
+
     /// Mark as breaking change
     pub fn breaking(mut self, breaking: bool) -> Self {
         self.breaking = breaking;
@@ -89,12 +107,6 @@ impl CommitBuilder {
         self
     }
 
-    /// Dry run (don't actually commit)
-    pub fn dry_run(mut self, dry_run: bool) -> Self {
-        self.dry_run = dry_run;
-        self
-    }
-
     /// Set commit format
     pub fn format(mut self, format: crate::config::CommitFormat) -> Self {
         self.format = format;
@@ -103,10 +115,18 @@ impl CommitBuilder {
 
     /// Build commit message
     pub fn build_message(&self) -> Result<String> {
-        let commit_type = self.commit_type.as_ref()
+        if let Some(ref msg) = self.message {
+            return Ok(msg.clone());
+        }
+
+        let commit_type = self
+            .commit_type
+            .as_ref()
             .ok_or_else(|| anyhow::anyhow!("Commit type is required"))?;
 
-        let description = self.description.as_ref()
+        let description = self
+            .description
+            .as_ref()
             .ok_or_else(|| anyhow::anyhow!("Description is required"))?;
 
         let message = match self.format {
@@ -139,33 +159,13 @@ impl CommitBuilder {
     pub fn execute(&self, repo: &GitRepo) -> Result<Option<String>> {
         let message = self.build_message()?;
 
-        if self.dry_run {
-            return Ok(Some(message));
-        }
-
-        // Check if there are staged changes
-        let staged_files = repo.get_staged_files()?;
-        if staged_files.is_empty() && !self.amend {
-            bail!("No staged changes to commit. Use 'git add' to stage files first.");
-        }
-
-        // Validate message
-        match self.format {
-            crate::config::CommitFormat::Conventional => {
-                crate::utils::validators::validate_conventional_commit(&message)?;
-            }
-            crate::config::CommitFormat::Commitlint => {
-                crate::utils::validators::validate_commitlint_commit(&message)?;
-            }
-        }
-
         if self.amend {
             self.amend_commit(repo, &message)?;
+            Ok(None)
         } else {
             repo.commit(&message, self.sign)?;
+            Ok(None)
         }
-
-        Ok(None)
     }
 
     fn amend_commit(&self, repo: &GitRepo, message: &str) -> Result<()> {
@@ -190,8 +190,24 @@ impl CommitBuilder {
             .output()?;
 
         if !output.status.success() {
+            let stdout = String::from_utf8_lossy(&output.stdout);
             let stderr = String::from_utf8_lossy(&output.stderr);
-            bail!("Failed to amend commit: {}", stderr);
+
+            let error_msg = if stderr.is_empty() {
+                if stdout.is_empty() {
+                    "GPG signing failed. Please check:\n\
+                     1. GPG signing key is configured (git config --get user.signingkey)\n\
+                     2. GPG agent is running\n\
+                     3. You can sign commits manually (try: git commit --amend -S)"
+                        .to_string()
+                } else {
+                    stdout.to_string()
+                }
+            } else {
+                stderr.to_string()
+            };
+
+            bail!("Failed to amend commit: {}", error_msg);
         }
 
         Ok(())
@@ -230,12 +246,19 @@ pub fn suggest_commit_type(diff: &str) -> Vec<&'static str> {
     }
 
     // Check for configuration files
-    if diff.contains("config") || diff.contains(".json") || diff.contains(".yaml") || diff.contains(".toml") {
+    if diff.contains("config")
+        || diff.contains(".json")
+        || diff.contains(".yaml")
+        || diff.contains(".toml")
+    {
         suggestions.push("chore");
     }
 
     // Check for dependencies
-    if diff.contains("Cargo.toml") || diff.contains("package.json") || diff.contains("requirements.txt") {
+    if diff.contains("Cargo.toml")
+        || diff.contains("package.json")
+        || diff.contains("requirements.txt")
+    {
         suggestions.push("build");
     }
 
@@ -292,11 +315,12 @@ pub fn parse_commit_message(message: &str) -> ParsedCommit {
                 continue;
             }
 
-            if line.starts_with("BREAKING CHANGE:") || 
+            if line.starts_with("BREAKING CHANGE:")
-               line.starts_with("Closes") || 
+                || line.starts_with("Closes")
-               line.starts_with("Fixes") ||
+                || line.starts_with("Fixes")
-               line.starts_with("Refs") ||
+                || line.starts_with("Refs")
-               line.starts_with("Co-authored-by:") {
+                || line.starts_with("Co-authored-by:")
+            {
                 in_footer = true;
             }
 
@@ -311,8 +335,16 @@ pub fn parse_commit_message(message: &str) -> ParsedCommit {
             commit_type,
             scope,
             description: Some(description.to_string()),
-            body: if body_lines.is_empty() { None } else { Some(body_lines.join("\n")) },
+            body: if body_lines.is_empty() {
-            footer: if footer_lines.is_empty() { None } else { Some(footer_lines.join("\n")) },
+                None
+            } else {
+                Some(body_lines.join("\n"))
+            },
+            footer: if footer_lines.is_empty() {
+                None
+            } else {
+                Some(footer_lines.join("\n"))
+            },
             breaking,
         };
     }

src/git/tag.rs

@@ -1,6 +1,7 @@
 use super::GitRepo;
-use anyhow::{bail, Context, Result};
+use anyhow::{Result, bail};
 use semver::Version;
+use std::path::Path;
 
 /// Tag builder for creating tags
 pub struct TagBuilder {
@@ -9,7 +10,6 @@ pub struct TagBuilder {
     annotate: bool,
     sign: bool,
     force: bool,
-    dry_run: bool,
     version_prefix: String,
 }
 
@@ -22,7 +22,6 @@ impl TagBuilder {
             annotate: true,
             sign: false,
             force: false,
-            dry_run: false,
             version_prefix: "v".to_string(),
         }
     }
@@ -57,12 +56,6 @@ impl TagBuilder {
         self
     }
 
-    /// Dry run (don't actually create tag)
-    pub fn dry_run(mut self, dry_run: bool) -> Self {
-        self.dry_run = dry_run;
-        self
-    }
-
     /// Set version prefix
     pub fn version_prefix(mut self, prefix: impl Into<String>) -> Self {
         self.version_prefix = prefix.into();
@@ -77,30 +70,21 @@ impl TagBuilder {
 
     /// Build tag message
     pub fn build_message(&self) -> Result<String> {
-        let message = self.message.as_ref()
+        let message = self.message.as_ref().cloned().unwrap_or_else(|| {
-            .cloned()
+            let name = self.name.as_deref().unwrap_or("unknown");
-            .unwrap_or_else(|| {
+            format!("Release {}", name)
-                let name = self.name.as_deref().unwrap_or("unknown");
+        });
-                format!("Release {}", name)
-            });
 
         Ok(message)
     }
 
     /// Execute tag creation
     pub fn execute(&self, repo: &GitRepo) -> Result<()> {
-        let name = self.name.as_ref()
+        let name = self
+            .name
+            .as_ref()
             .ok_or_else(|| anyhow::anyhow!("Tag name is required"))?;
 
-        if self.dry_run {
-            println!("Would create tag: {}", name);
-            if self.annotate {
-                println!("Message: {}", self.build_message()?);
-            }
-            return Ok(());
-        }
-
-        // Check if tag already exists
         if !self.force {
             let existing_tags = repo.get_tags()?;
             if existing_tags.iter().any(|t| t.name == *name) {
@@ -153,7 +137,10 @@ impl VersionBump {
             "minor" => Ok(Self::Minor),
             "patch" => Ok(Self::Patch),
             "prerelease" | "pre" => Ok(Self::Prerelease),
-            _ => bail!("Invalid version bump: {}. Use: major, minor, patch, prerelease", s),
+            _ => bail!(
+                "Invalid version bump: {}. Use: major, minor, patch, prerelease",
+                s
+            ),
         }
     }
 
@@ -204,7 +191,10 @@ pub fn suggest_version_bump(commits: &[super::CommitInfo]) -> VersionBump {
     for commit in commits {
         let msg = commit.message.to_lowercase();
 
-        if msg.contains("breaking change") || msg.contains("breaking-change") || msg.contains("breaking_change") {
+        if msg.contains("breaking change")
+            || msg.contains("breaking-change")
+            || msg.contains("breaking_change")
+        {
             has_breaking = true;
         }
 
@@ -298,8 +288,9 @@ pub fn delete_tag(repo: &GitRepo, name: &str, remote: Option<&str>) -> Result<()
     if let Some(remote) = remote {
         use std::process::Command;
 
+        let refspec = format!(":refs/tags/{}", name);
         let output = Command::new("git")
-            .args(&["push", remote, ":refs/tags/{}"])
+            .args(["push", remote, &refspec])
             .current_dir(repo.path())
             .output()?;
 
@@ -337,3 +328,193 @@ pub fn list_tags(
         Ok(filtered)
     }
 }
+
+/// Sort tags by semver version descending, then by time descending.
+/// Non-semver tags are placed after semver tags, sorted by time descending.
+pub fn sort_tags_by_semver(tags: &mut [super::TagInfo]) {
+    use semver::Version;
+
+    tags.sort_by(|a, b| {
+        match (
+            Version::parse(a.version_name()),
+            Version::parse(b.version_name()),
+        ) {
+            (Ok(va), Ok(vb)) => {
+                // Both semver: version descending, then time descending as tiebreaker
+                vb.cmp(&va).then_with(|| b.time.cmp(&a.time))
+            }
+            (Ok(_), Err(_)) => std::cmp::Ordering::Less,   // semver tags first
+            (Err(_), Ok(_)) => std::cmp::Ordering::Greater, // semver tags first
+            (Err(_), Err(_)) => b.time.cmp(&a.time),        // both non-semver: time descending
+        }
+    });
+}
+
+/// Read the project version from Cargo.toml or pyproject.toml.
+/// Returns None if no project config file is found or version cannot be read.
+pub fn read_project_version(project_dir: &Path) -> Option<Version> {
+    // Try Cargo.toml first
+    let cargo_path = project_dir.join("Cargo.toml");
+    if cargo_path.exists() {
+        if let Ok(content) = std::fs::read_to_string(&cargo_path) {
+            if let Ok(value) = content.parse::<toml::Value>() {
+                if let Some(version) = value
+                    .get("package")
+                    .and_then(|p| p.get("version"))
+                    .and_then(|v| v.as_str())
+                {
+                    if let Ok(ver) = Version::parse(version) {
+                        return Some(ver);
+                    }
+                }
+            }
+        }
+    }
+
+    // Try pyproject.toml
+    let pyproject_path = project_dir.join("pyproject.toml");
+    if pyproject_path.exists() {
+        if let Ok(content) = std::fs::read_to_string(&pyproject_path) {
+            if let Ok(value) = content.parse::<toml::Value>() {
+                if let Some(version) = value
+                    .get("project")
+                    .and_then(|p| p.get("version"))
+                    .and_then(|v| v.as_str())
+                {
+                    if let Ok(ver) = Version::parse(version) {
+                        return Some(ver);
+                    }
+                }
+            }
+        }
+    }
+
+    None
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::git::TagInfo;
+
+    fn make_tag(name: &str, time: i64) -> TagInfo {
+        TagInfo {
+            name: name.to_string(),
+            target: "abc123".to_string(),
+            message: String::new(),
+            time,
+        }
+    }
+
+    #[test]
+    fn test_sort_by_semver_descending() {
+        let mut tags = vec![
+            make_tag("v1.0.0", 100),
+            make_tag("v2.0.0", 200),
+            make_tag("v1.5.0", 150),
+        ];
+        sort_tags_by_semver(&mut tags);
+        let names: Vec<&str> = tags.iter().map(|t| t.name.as_str()).collect();
+        assert_eq!(names, vec!["v2.0.0", "v1.5.0", "v1.0.0"]);
+    }
+
+    #[test]
+    fn test_sort_semver_ties_broken_by_time() {
+        let mut tags = vec![
+            make_tag("v1.0.0", 100),
+            make_tag("v1.0.0", 300),
+            make_tag("v1.0.0", 200),
+        ];
+        sort_tags_by_semver(&mut tags);
+        let times: Vec<i64> = tags.iter().map(|t| t.time).collect();
+        assert_eq!(times, vec![300, 200, 100]);
+    }
+
+    #[test]
+    fn test_sort_non_semver_tags_at_end() {
+        let mut tags = vec![
+            make_tag("release-2024", 400),
+            make_tag("v1.0.0", 100),
+            make_tag("staging", 300),
+            make_tag("v0.2.0", 200),
+        ];
+        sort_tags_by_semver(&mut tags);
+        let names: Vec<&str> = tags.iter().map(|t| t.name.as_str()).collect();
+        assert_eq!(names[0], "v1.0.0");
+        assert_eq!(names[1], "v0.2.0");
+        assert_eq!(names[2], "release-2024");
+        assert_eq!(names[3], "staging");
+    }
+
+    #[test]
+    fn test_sort_no_prefix_semver() {
+        let mut tags = vec![
+            make_tag("1.0.0", 100),
+            make_tag("2.0.0", 200),
+            make_tag("0.1.0", 50),
+        ];
+        sort_tags_by_semver(&mut tags);
+        let names: Vec<&str> = tags.iter().map(|t| t.name.as_str()).collect();
+        assert_eq!(names, vec!["2.0.0", "1.0.0", "0.1.0"]);
+    }
+
+    #[test]
+    fn test_sort_all_non_semver_by_time() {
+        let mut tags = vec![
+            make_tag("release-2024", 100),
+            make_tag("release-2023", 300),
+            make_tag("beta", 200),
+        ];
+        sort_tags_by_semver(&mut tags);
+        let times: Vec<i64> = tags.iter().map(|t| t.time).collect();
+        assert_eq!(times, vec![300, 200, 100]);
+    }
+
+    #[test]
+    fn test_read_project_version_from_cargo_toml() {
+        let dir = tempfile::TempDir::new().unwrap();
+        std::fs::write(
+            dir.path().join("Cargo.toml"),
+            "[package]\nname = \"test\"\nversion = \"0.3.0\"\n",
+        )
+        .unwrap();
+        let version = read_project_version(dir.path());
+        assert_eq!(version, Some(Version::new(0, 3, 0)));
+    }
+
+    #[test]
+    fn test_read_project_version_from_pyproject_toml() {
+        let dir = tempfile::TempDir::new().unwrap();
+        std::fs::write(
+            dir.path().join("pyproject.toml"),
+            "[project]\nname = \"test\"\nversion = \"0.2.1\"\n",
+        )
+        .unwrap();
+        let version = read_project_version(dir.path());
+        assert_eq!(version, Some(Version::new(0, 2, 1)));
+    }
+
+    #[test]
+    fn test_read_project_version_no_config_files() {
+        let dir = tempfile::TempDir::new().unwrap();
+        let version = read_project_version(dir.path());
+        assert_eq!(version, None);
+    }
+
+    #[test]
+    fn test_read_project_version_cargo_takes_priority() {
+        let dir = tempfile::TempDir::new().unwrap();
+        std::fs::write(
+            dir.path().join("Cargo.toml"),
+            "[package]\nname = \"test\"\nversion = \"0.3.0\"\n",
+        )
+        .unwrap();
+        std::fs::write(
+            dir.path().join("pyproject.toml"),
+            "[project]\nname = \"test\"\nversion = \"0.2.1\"\n",
+        )
+        .unwrap();
+        let version = read_project_version(dir.path());
+        assert_eq!(version, Some(Version::new(0, 3, 0)));
+    }
+}

src/i18n/mod.rs

@@ -0,0 +1,5 @@
+pub mod messages;
+pub mod translator;
+
+pub use messages::Messages;
+pub use translator::translate_changelog_category;

src/i18n/translator.rs

@@ -0,0 +1,241 @@
+use crate::config::Language;
+
+pub struct Translator {
+    language: Language,
+    keep_types_english: bool,
+    keep_changelog_types_english: bool,
+}
+
+impl Translator {
+    pub fn new(
+        language: Language,
+        keep_types_english: bool,
+        keep_changelog_types_english: bool,
+    ) -> Self {
+        Self {
+            language,
+            keep_types_english,
+            keep_changelog_types_english,
+        }
+    }
+
+    pub fn translate_commit_type(&self, commit_type: &str) -> String {
+        if self.keep_types_english {
+            return commit_type.to_string();
+        }
+
+        match self.language {
+            Language::English => commit_type.to_string(),
+            Language::Chinese => self.translate_commit_type_zh(commit_type),
+            Language::Japanese => self.translate_commit_type_ja(commit_type),
+            Language::Korean => self.translate_commit_type_ko(commit_type),
+            Language::Spanish => self.translate_commit_type_es(commit_type),
+            Language::French => self.translate_commit_type_fr(commit_type),
+            Language::German => self.translate_commit_type_de(commit_type),
+        }
+    }
+
+    pub fn translate_changelog_category(&self, category: &str) -> String {
+        if self.keep_changelog_types_english {
+            return category.to_string();
+        }
+
+        match self.language {
+            Language::English => category.to_string(),
+            Language::Chinese => self.translate_changelog_category_zh(category),
+            Language::Japanese => self.translate_changelog_category_ja(category),
+            Language::Korean => self.translate_changelog_category_ko(category),
+            Language::Spanish => self.translate_changelog_category_es(category),
+            Language::French => self.translate_changelog_category_fr(category),
+            Language::German => self.translate_changelog_category_de(category),
+        }
+    }
+
+    fn translate_commit_type_zh(&self, commit_type: &str) -> String {
+        match commit_type {
+            "feat" => "新功能".to_string(),
+            "fix" => "修复".to_string(),
+            "docs" => "文档".to_string(),
+            "style" => "样式".to_string(),
+            "refactor" => "重构".to_string(),
+            "perf" => "性能".to_string(),
+            "test" => "测试".to_string(),
+            "build" => "构建".to_string(),
+            "ci" => "CI".to_string(),
+            "chore" => "杂项".to_string(),
+            "revert" => "回滚".to_string(),
+            _ => commit_type.to_string(),
+        }
+    }
+
+    fn translate_commit_type_ja(&self, commit_type: &str) -> String {
+        match commit_type {
+            "feat" => "機能".to_string(),
+            "fix" => "修正".to_string(),
+            "docs" => "ドキュメント".to_string(),
+            "style" => "スタイル".to_string(),
+            "refactor" => "リファクタリング".to_string(),
+            "perf" => "パフォーマンス".to_string(),
+            "test" => "テスト".to_string(),
+            "build" => "ビルド".to_string(),
+            "ci" => "CI".to_string(),
+            "chore" => "雑務".to_string(),
+            "revert" => "取り消し".to_string(),
+            _ => commit_type.to_string(),
+        }
+    }
+
+    fn translate_commit_type_ko(&self, commit_type: &str) -> String {
+        match commit_type {
+            "feat" => "기능".to_string(),
+            "fix" => "버그 수정".to_string(),
+            "docs" => "문서".to_string(),
+            "style" => "스타일".to_string(),
+            "refactor" => "리팩토링".to_string(),
+            "perf" => "성능".to_string(),
+            "test" => "테스트".to_string(),
+            "build" => "빌드".to_string(),
+            "ci" => "CI".to_string(),
+            "chore" => "기타".to_string(),
+            "revert" => "되돌리기".to_string(),
+            _ => commit_type.to_string(),
+        }
+    }
+
+    fn translate_commit_type_es(&self, commit_type: &str) -> String {
+        match commit_type {
+            "feat" => "nueva función".to_string(),
+            "fix" => "corrección".to_string(),
+            "docs" => "documentación".to_string(),
+            "style" => "estilo".to_string(),
+            "refactor" => "refactorización".to_string(),
+            "perf" => "rendimiento".to_string(),
+            "test" => "pruebas".to_string(),
+            "build" => "construcción".to_string(),
+            "ci" => "CI".to_string(),
+            "chore" => "tareas".to_string(),
+            "revert" => "revertir".to_string(),
+            _ => commit_type.to_string(),
+        }
+    }
+
+    fn translate_commit_type_fr(&self, commit_type: &str) -> String {
+        match commit_type {
+            "feat" => "nouvelle fonctionnalité".to_string(),
+            "fix" => "correction".to_string(),
+            "docs" => "documentation".to_string(),
+            "style" => "style".to_string(),
+            "refactor" => "refactorisation".to_string(),
+            "perf" => "performance".to_string(),
+            "test" => "tests".to_string(),
+            "build" => "construction".to_string(),
+            "ci" => "CI".to_string(),
+            "chore" => "tâches".to_string(),
+            "revert" => "rétablir".to_string(),
+            _ => commit_type.to_string(),
+        }
+    }
+
+    fn translate_commit_type_de(&self, commit_type: &str) -> String {
+        match commit_type {
+            "feat" => "Neue Funktion".to_string(),
+            "fix" => "Korrektur".to_string(),
+            "docs" => "Dokumentation".to_string(),
+            "style" => "Stil".to_string(),
+            "refactor" => "Refactoring".to_string(),
+            "perf" => "Leistung".to_string(),
+            "test" => "Tests".to_string(),
+            "build" => "Build".to_string(),
+            "ci" => "CI".to_string(),
+            "chore" => "Wartung".to_string(),
+            "revert" => "Zurücksetzen".to_string(),
+            _ => commit_type.to_string(),
+        }
+    }
+
+    fn translate_changelog_category_zh(&self, category: &str) -> String {
+        match category.to_lowercase().as_str() {
+            "added" => "新增".to_string(),
+            "changed" => "更改".to_string(),
+            "deprecated" => "弃用".to_string(),
+            "removed" => "移除".to_string(),
+            "fixed" => "修复".to_string(),
+            "security" => "安全".to_string(),
+            _ => category.to_string(),
+        }
+    }
+
+    fn translate_changelog_category_ja(&self, category: &str) -> String {
+        match category.to_lowercase().as_str() {
+            "added" => "追加".to_string(),
+            "changed" => "変更".to_string(),
+            "deprecated" => "非推奨".to_string(),
+            "removed" => "削除".to_string(),
+            "fixed" => "修正".to_string(),
+            "security" => "セキュリティ".to_string(),
+            _ => category.to_string(),
+        }
+    }
+
+    fn translate_changelog_category_ko(&self, category: &str) -> String {
+        match category.to_lowercase().as_str() {
+            "added" => "추가됨".to_string(),
+            "changed" => "변경됨".to_string(),
+            "deprecated" => "사용 중단".to_string(),
+            "removed" => "제거됨".to_string(),
+            "fixed" => "수정됨".to_string(),
+            "security" => "보안".to_string(),
+            _ => category.to_string(),
+        }
+    }
+
+    fn translate_changelog_category_es(&self, category: &str) -> String {
+        match category.to_lowercase().as_str() {
+            "added" => "Agregado".to_string(),
+            "changed" => "Cambiado".to_string(),
+            "deprecated" => "Obsoleto".to_string(),
+            "removed" => "Eliminado".to_string(),
+            "fixed" => "Corregido".to_string(),
+            "security" => "Seguridad".to_string(),
+            _ => category.to_string(),
+        }
+    }
+
+    fn translate_changelog_category_fr(&self, category: &str) -> String {
+        match category.to_lowercase().as_str() {
+            "added" => "Ajouté".to_string(),
+            "changed" => "Modifié".to_string(),
+            "deprecated" => "Obsolète".to_string(),
+            "removed" => "Supprimé".to_string(),
+            "fixed" => "Corrigé".to_string(),
+            "security" => "Sécurité".to_string(),
+            _ => category.to_string(),
+        }
+    }
+
+    fn translate_changelog_category_de(&self, category: &str) -> String {
+        match category.to_lowercase().as_str() {
+            "added" => "Hinzugefügt".to_string(),
+            "changed" => "Geändert".to_string(),
+            "deprecated" => "Veraltet".to_string(),
+            "removed" => "Entfernt".to_string(),
+            "fixed" => "Behoben".to_string(),
+            "security" => "Sicherheit".to_string(),
+            _ => category.to_string(),
+        }
+    }
+}
+
+pub fn translate_commit_type(commit_type: &str, language: Language, keep_english: bool) -> String {
+    let translator = Translator::new(language, keep_english, true);
+    translator.translate_commit_type(commit_type)
+}
+
+pub fn translate_changelog_category(
+    category: &str,
+    language: Language,
+    keep_english: bool,
+) -> String {
+    let translator = Translator::new(language, true, keep_english);
+    translator.translate_changelog_category(category)
+}

src/lib.rs

@@ -0,0 +1,9 @@
+#![allow(dead_code)]
+
+pub mod commands;
+pub mod config;
+pub mod generator;
+pub mod git;
+pub mod i18n;
+pub mod llm;
+pub mod utils;

src/llm/anthropic.rs

@@ -1,7 +1,9 @@
-use super::{create_http_client, LlmProvider};
+use super::thinking::ThinkingStateManager;
-use anyhow::{bail, Context, Result};
+use super::{LlmProvider, create_http_client};
+use anyhow::{Context, Result, bail};
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
+use std::sync::Arc;
 use std::time::Duration;
 
 /// Anthropic Claude API client
@@ -9,6 +11,12 @@ pub struct AnthropicClient {
     api_key: String,
     model: String,
     client: reqwest::Client,
+    thinking_enabled: bool,
+    thinking_budget_tokens: u32,
+    max_tokens: u32,
+    temperature: f32,
+    top_p: Option<f32>,
+    thinking_state: Option<Arc<ThinkingStateManager>>,
 }
 
 #[derive(Debug, Serialize)]
@@ -17,24 +25,59 @@ struct MessagesRequest {
     max_tokens: u32,
     #[serde(skip_serializing_if = "Option::is_none")]
     temperature: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    top_p: Option<f32>,
     messages: Vec<AnthropicMessage>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    system: Option<String>,
+    system: Option<Vec<SystemContent>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    thinking: Option<ThinkingConfig>,
+    stream: bool,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Clone)]
+struct SystemContent {
+    #[serde(rename = "type")]
+    content_type: String,
+    text: String,
+}
+
+#[derive(Debug, Serialize)]
+struct ThinkingConfig {
+    #[serde(rename = "type")]
+    thinking_type: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    budget_tokens: Option<u32>,
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
 struct AnthropicMessage {
     role: String,
-    content: String,
+    content: AnthropicContent,
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+#[serde(untagged)]
+enum AnthropicContent {
+    Text(String),
+    Blocks(Vec<ContentBlock>),
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+struct ContentBlock {
+    #[serde(rename = "type")]
+    content_type: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    text: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
 struct MessagesResponse {
-    content: Vec<ContentBlock>,
+    content: Vec<ResponseContentBlock>,
 }
 
 #[derive(Debug, Deserialize)]
-struct ContentBlock {
+struct ResponseContentBlock {
     #[serde(rename = "type")]
     content_type: String,
     text: String,
@@ -52,8 +95,57 @@ struct AnthropicError {
     message: String,
 }
 
+// --- Streaming SSE event structures ---
+
+#[derive(Debug, Deserialize)]
+struct SseEvent {
+    #[serde(rename = "type")]
+    event_type: String,
+    #[serde(default)]
+    message: Option<SseMessage>,
+    #[serde(default)]
+    index: Option<u32>,
+    #[serde(default)]
+    content_block: Option<SseContentBlock>,
+    #[serde(default)]
+    delta: Option<SseDelta>,
+    #[serde(default)]
+    usage: Option<SseUsage>,
+}
+
+#[derive(Debug, Deserialize)]
+struct SseMessage {
+    #[serde(default)]
+    content: Option<Vec<SseContentBlock>>,
+}
+
+#[derive(Debug, Deserialize)]
+struct SseContentBlock {
+    #[serde(rename = "type")]
+    content_type: String,
+    #[serde(default)]
+    thinking: Option<String>,
+    #[serde(default)]
+    text: Option<String>,
+}
+
+#[derive(Debug, Deserialize)]
+struct SseDelta {
+    #[serde(rename = "type")]
+    delta_type: Option<String>,
+    #[serde(default)]
+    thinking: Option<String>,
+    #[serde(default)]
+    text: Option<String>,
+}
+
+#[derive(Debug, Deserialize)]
+struct SseUsage {
+    #[serde(default)]
+    output_tokens: Option<u32>,
+}
+
 impl AnthropicClient {
-    /// Create new Anthropic client
     pub fn new(api_key: &str, model: &str) -> Result<Self> {
         let client = create_http_client(Duration::from_secs(60))?;
 
@@ -61,16 +153,54 @@ impl AnthropicClient {
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            thinking_enabled: false,
+            thinking_budget_tokens: 1024,
+            max_tokens: 500,
+            temperature: 0.7,
+            top_p: None,
+            thinking_state: None,
         })
     }
 
-    /// Set timeout
     pub fn with_timeout(mut self, timeout: Duration) -> Result<Self> {
         self.client = create_http_client(timeout)?;
         Ok(self)
     }
 
-    /// Validate API key
+    pub fn with_thinking(mut self, enabled: bool) -> Self {
+        self.thinking_enabled = enabled;
+        self
+    }
+
+    pub fn with_thinking_budget_tokens(mut self, budget_tokens: u32) -> Self {
+        self.thinking_budget_tokens = budget_tokens;
+        self
+    }
+
+    pub fn with_max_tokens(mut self, max_tokens: u32) -> Self {
+        self.max_tokens = max_tokens;
+        self
+    }
+
+    pub fn with_temperature(mut self, temperature: f32) -> Self {
+        self.temperature = temperature;
+        self
+    }
+
+    pub fn with_top_p(mut self, top_p: f32) -> Self {
+        self.top_p = Some(top_p);
+        self
+    }
+
+    pub fn with_thinking_state(mut self, state: Arc<ThinkingStateManager>) -> Self {
+        self.thinking_state = Some(state);
+        self
+    }
+
+    pub async fn list_models(&self) -> Result<Vec<String>> {
+        Ok(ANTHROPIC_MODELS.iter().map(|&m| m.to_string()).collect())
+    }
+
     pub async fn validate_key(&self) -> Result<bool> {
         let url = "https://api.anthropic.com/v1/messages";
 
@@ -78,14 +208,18 @@ impl AnthropicClient {
             model: self.model.clone(),
             max_tokens: 5,
             temperature: Some(0.0),
+            top_p: None,
             messages: vec![AnthropicMessage {
                 role: "user".to_string(),
-                content: "Hi".to_string(),
+                content: AnthropicContent::Text("Hi".to_string()),
             }],
             system: None,
+            thinking: None,
+            stream: false,
         };
 
-        let response = self.client
+        let response = self
+            .client
             .post(url)
             .header("x-api-key", &self.api_key)
             .header("anthropic-version", "2023-06-01")
@@ -118,25 +252,28 @@ impl LlmProvider for AnthropicClient {
     async fn generate(&self, prompt: &str) -> Result<String> {
         let messages = vec![AnthropicMessage {
             role: "user".to_string(),
-            content: prompt.to_string(),
+            content: AnthropicContent::Text(prompt.to_string()),
         }];
 
-        self.messages_request(messages, None).await
+        self.messages_request_with_retry(messages, None).await
     }
 
     async fn generate_with_system(&self, system: &str, user: &str) -> Result<String> {
         let messages = vec![AnthropicMessage {
             role: "user".to_string(),
-            content: user.to_string(),
+            content: AnthropicContent::Text(user.to_string()),
         }];
 
         let system = if system.is_empty() {
             None
         } else {
-            Some(system.to_string())
+            Some(vec![SystemContent {
+                content_type: "text".to_string(),
+                text: system.to_string(),
+            }])
         };
 
-        self.messages_request(messages, system).await
+        self.messages_request_with_retry(messages, system).await
     }
 
     async fn is_available(&self) -> bool {
@@ -149,22 +286,84 @@ impl LlmProvider for AnthropicClient {
 }
 
 impl AnthropicClient {
+    async fn messages_request_with_retry(
+        &self,
+        messages: Vec<AnthropicMessage>,
+        system: Option<Vec<SystemContent>>,
+    ) -> Result<String> {
+        let mut last_error = None;
+
+        for attempt in 1..=3 {
+            match self
+                .messages_request(messages.clone(), system.clone())
+                .await
+            {
+                Ok(result) => return Ok(result),
+                Err(e) => {
+                    let err_msg = e.to_string();
+                    let is_retryable = err_msg.contains("timeout")
+                        || err_msg.contains("connection")
+                        || err_msg.contains("temporary")
+                        || err_msg.contains("5")
+                            && (err_msg.contains("500")
+                                || err_msg.contains("502")
+                                || err_msg.contains("503")
+                                || err_msg.contains("504"));
+
+                    if !is_retryable || attempt == 3 {
+                        last_error = Some(e);
+                        break;
+                    }
+
+                    tokio::time::sleep(Duration::from_millis(500 * 2u64.pow(attempt - 1))).await;
+                }
+            }
+        }
+
+        Err(last_error.unwrap_or_else(|| anyhow::anyhow!("Request failed after retries")))
+    }
+
     async fn messages_request(
         &self,
         messages: Vec<AnthropicMessage>,
-        system: Option<String>,
+        system: Option<Vec<SystemContent>>,
+    ) -> Result<String> {
+        if self.thinking_enabled {
+            self.streaming_messages_request(messages, system).await
+        } else {
+            self.non_streaming_messages_request(messages, system).await
+        }
+    }
+
+    async fn non_streaming_messages_request(
+        &self,
+        messages: Vec<AnthropicMessage>,
+        system: Option<Vec<SystemContent>>,
     ) -> Result<String> {
         let url = "https://api.anthropic.com/v1/messages";
 
-        let request = MessagesRequest {
+        let temperature = if self.temperature == 0.0 {
-            model: self.model.clone(),
+            None
-            max_tokens: 500,
+        } else {
-            temperature: Some(0.7),
+            Some(self.temperature)
-            messages,
-            system,
         };
 
-        let response = self.client
+        let request = MessagesRequest {
+            model: self.model.clone(),
+            max_tokens: self.max_tokens,
+            temperature,
+            top_p: self.top_p,
+            messages,
+            system,
+            thinking: Some(ThinkingConfig {
+                thinking_type: "disabled".to_string(),
+                budget_tokens: None,
+            }),
+            stream: false,
+        };
+
+        let response = self
+            .client
             .post(url)
             .header("x-api-key", &self.api_key)
             .header("anthropic-version", "2023-06-01")
@@ -179,9 +378,12 @@ impl AnthropicClient {
         if !status.is_success() {
             let text = response.text().await.unwrap_or_default();
 
-            // Try to parse error
             if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
-                bail!("Anthropic API error: {} ({})", error.error.message, error.error.error_type);
+                bail!(
+                    "Anthropic API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
             }
 
             bail!("Anthropic API error: {} - {}", status, text);
@@ -192,16 +394,183 @@ impl AnthropicClient {
             .await
             .context("Failed to parse Anthropic response")?;
 
-        result.content
+        result
+            .content
             .into_iter()
             .find(|c| c.content_type == "text")
             .map(|c| c.text.trim().to_string())
+            .filter(|s| !s.is_empty())
             .ok_or_else(|| anyhow::anyhow!("No text response from Anthropic"))
     }
+
+    /// Streaming request for thinking mode, filters thinking content blocks
+    async fn streaming_messages_request(
+        &self,
+        messages: Vec<AnthropicMessage>,
+        system: Option<Vec<SystemContent>>,
+    ) -> Result<String> {
+        let url = "https://api.anthropic.com/v1/messages";
+
+        let thinking = ThinkingConfig {
+            thinking_type: "enabled".to_string(),
+            budget_tokens: Some(self.thinking_budget_tokens),
+        };
+
+        // max_tokens must exceed budget_tokens
+        let max_tokens = (self.max_tokens).max(self.thinking_budget_tokens + 100);
+
+        let request = MessagesRequest {
+            model: self.model.clone(),
+            max_tokens,
+            temperature: None, // must be omitted for thinking mode
+            top_p: None,
+            messages,
+            system,
+            thinking: Some(thinking),
+            stream: true,
+        };
+
+        let response = self
+            .client
+            .post(url)
+            .header("x-api-key", &self.api_key)
+            .header("anthropic-version", "2023-06-01")
+            .header("Content-Type", "application/json")
+            .header("Accept", "text/event-stream")
+            .json(&request)
+            .send()
+            .await
+            .context("Failed to send streaming request to Anthropic")?;
+
+        let status = response.status();
+
+        if !status.is_success() {
+            let text = response.text().await.unwrap_or_default();
+
+            if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
+                bail!(
+                    "Anthropic API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
+            }
+
+            bail!("Anthropic API error: {} - {}", status, text);
+        }
+
+        let mut content_buffer = String::new();
+        let mut in_thinking = false;
+        let mut has_reasoning = false;
+        let mut has_content = false;
+
+        let thinking_state = self.thinking_state.as_ref();
+
+        let mut byte_stream = response.bytes_stream();
+        let mut line_buffer = String::new();
+
+        use futures_util::StreamExt;
+
+        while let Some(chunk) = byte_stream.next().await {
+            let chunk = chunk.context("Failed to read streaming response chunk")?;
+            let chunk_str =
+                String::from_utf8(chunk.to_vec()).context("Invalid UTF-8 in stream chunk")?;
+
+            line_buffer.push_str(&chunk_str);
+
+            while let Some(line_end) = line_buffer.find('\n') {
+                let line = line_buffer[..line_end].trim().to_string();
+                line_buffer = line_buffer[line_end + 1..].to_string();
+
+                if line.is_empty() {
+                    continue;
+                }
+
+                // Parse SSE event line
+                if let Some(data) = line.strip_prefix("data: ") {
+                    if let Ok(event) = serde_json::from_str::<SseEvent>(data) {
+                        match event.event_type.as_str() {
+                            "content_block_start" => {
+                                if let Some(ref block) = event.content_block {
+                                    if block.content_type == "thinking" {
+                                        in_thinking = true;
+                                        if !has_reasoning {
+                                            has_reasoning = true;
+                                            if let Some(state) = thinking_state {
+                                                state.start_thinking();
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                            "content_block_delta" => {
+                                if let Some(ref delta) = event.delta {
+                                    // Thinking delta - ignore content but track state
+                                    if delta.thinking.is_some() {
+                                        continue;
+                                    }
+
+                                    // Text delta - collect
+                                    if in_thinking && delta.text.is_some() {
+                                        // Transition from thinking to text
+                                        if let Some(state) = thinking_state {
+                                            state.end_thinking();
+                                        }
+                                        in_thinking = false;
+                                    }
+                                    if let Some(ref text) = delta.text
+                                        && !text.is_empty()
+                                    {
+                                        has_content = true;
+                                        content_buffer.push_str(text);
+                                    }
+                                }
+                            }
+                            "content_block_stop" => {
+                                if in_thinking {
+                                    if let Some(state) = thinking_state {
+                                        state.end_thinking();
+                                    }
+                                    in_thinking = false;
+                                }
+                            }
+                            _ => {}
+                        }
+                    }
+                }
+            }
+        }
+
+        // Ensure thinking state is ended
+        if let Some(state) = thinking_state {
+            state.end_thinking();
+        }
+
+        let result = content_buffer.trim().to_string();
+
+        if result.is_empty() {
+            if has_reasoning && !has_content {
+                bail!(
+                    "Anthropic returned thinking content but no final answer. \
+                     The model may have entered an incomplete thinking state. \
+                     Please try again or disable thinking mode."
+                );
+            }
+            bail!(
+                "No response from Anthropic. \
+                 If thinking mode is enabled, try disabling it or ensure the model supports it."
+            );
+        }
+
+        Ok(result)
+    }
 }
 
-/// Available Anthropic models
+/// Available Anthropic models (Claude 4 series with extended thinking)
 pub const ANTHROPIC_MODELS: &[&str] = &[
+    "claude-opus-4-7",
+    "claude-sonnet-4-6",
+    "claude-haiku-4-5",
+    // Legacy models
     "claude-3-opus-20240229",
     "claude-3-sonnet-20240229",
     "claude-3-haiku-20240307",
@@ -210,7 +579,6 @@ pub const ANTHROPIC_MODELS: &[&str] = &[
     "claude-instant-1.2",
 ];
 
-/// Check if a model name is valid
 pub fn is_valid_model(model: &str) -> bool {
     ANTHROPIC_MODELS.contains(&model)
 }
@@ -220,8 +588,68 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_model_validation() {
+    fn test_model_validation_claude4() {
+        assert!(is_valid_model("claude-opus-4-7"));
+        assert!(is_valid_model("claude-sonnet-4-6"));
+        assert!(is_valid_model("claude-haiku-4-5"));
         assert!(is_valid_model("claude-3-sonnet-20240229"));
         assert!(!is_valid_model("invalid-model"));
     }
+
+    #[test]
+    fn test_thinking_config_serialization() {
+        let config = ThinkingConfig {
+            thinking_type: "enabled".to_string(),
+            budget_tokens: Some(2048),
+        };
+        let json = serde_json::to_string(&config).unwrap();
+        assert!(json.contains(r#""type":"enabled""#));
+        assert!(json.contains(r#""budget_tokens":2048"#));
+    }
+
+    #[test]
+    fn test_thinking_config_disabled_serialization() {
+        let config = ThinkingConfig {
+            thinking_type: "disabled".to_string(),
+            budget_tokens: None,
+        };
+        let json = serde_json::to_string(&config).unwrap();
+        assert_eq!(json, r#"{"type":"disabled"}"#);
+    }
+
+    #[test]
+    fn test_system_content_serialization() {
+        let content = SystemContent {
+            content_type: "text".to_string(),
+            text: "You are helpful.".to_string(),
+        };
+        let json = serde_json::to_string(&content).unwrap();
+        assert!(json.contains(r#""type":"text""#));
+    }
+
+    #[test]
+    fn test_sse_event_parsing_content_block_start() {
+        let json = r#"{"type":"content_block_start","index":0,"content_block":{"type":"thinking","thinking":""}}"#;
+        let event: SseEvent = serde_json::from_str(json).unwrap();
+        assert_eq!(event.event_type, "content_block_start");
+        assert_eq!(event.content_block.unwrap().content_type, "thinking");
+    }
+
+    #[test]
+    fn test_sse_event_parsing_text_delta() {
+        let json = r#"{"type":"content_block_delta","index":0,"delta":{"type":"text_delta","text":"Hello"}}"#;
+        let event: SseEvent = serde_json::from_str(json).unwrap();
+        assert_eq!(event.event_type, "content_block_delta");
+        assert_eq!(event.delta.unwrap().text, Some("Hello".to_string()));
+    }
+
+    #[test]
+    fn test_anthropic_content_text() {
+        let msg = AnthropicMessage {
+            role: "user".to_string(),
+            content: AnthropicContent::Text("Hello".to_string()),
+        };
+        let json = serde_json::to_string(&msg).unwrap();
+        assert!(json.contains(r#""content":"Hello""#));
+    }
 }

src/llm/deepseek.rs

@@ -1,7 +1,9 @@
-use super::{create_http_client, LlmProvider};
+use super::thinking::ThinkingStateManager;
-use anyhow::{bail, Context, Result};
+use super::{LlmProvider, create_http_client};
+use anyhow::{Context, Result, bail};
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
+use std::sync::Arc;
 use std::time::Duration;
 
 /// DeepSeek API client
@@ -10,6 +12,11 @@ pub struct DeepSeekClient {
     api_key: String,
     model: String,
     client: reqwest::Client,
+    thinking_enabled: bool,
+    reasoning_effort: Option<String>,
+    max_tokens: u32,
+    temperature: f32,
+    thinking_state: Option<Arc<ThinkingStateManager>>,
 }
 
 #[derive(Debug, Serialize)]
@@ -20,13 +27,31 @@ struct ChatCompletionRequest {
     max_tokens: Option<u32>,
     #[serde(skip_serializing_if = "Option::is_none")]
     temperature: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    top_p: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    presence_penalty: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    frequency_penalty: Option<f32>,
     stream: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    thinking: Option<ThinkingConfig>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    reasoning_effort: Option<String>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize)]
+struct ThinkingConfig {
+    #[serde(rename = "type")]
+    thinking_type: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
 struct Message {
     role: String,
     content: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    reasoning_content: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
@@ -37,6 +62,31 @@ struct ChatCompletionResponse {
 #[derive(Debug, Deserialize)]
 struct Choice {
     message: Message,
+    #[serde(default)]
+    reasoning_content: Option<String>,
+}
+
+// --- Streaming response structures ---
+
+#[derive(Debug, Deserialize)]
+struct StreamChunk {
+    choices: Vec<StreamChoice>,
+}
+
+#[derive(Debug, Deserialize)]
+struct StreamChoice {
+    delta: StreamDelta,
+    #[serde(default)]
+    finish_reason: Option<String>,
+    index: Option<u32>,
+}
+
+#[derive(Debug, Deserialize, Default)]
+struct StreamDelta {
+    #[serde(default)]
+    content: Option<String>,
+    #[serde(default)]
+    reasoning_content: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
@@ -52,55 +102,114 @@ struct ApiError {
 }
 
 impl DeepSeekClient {
-    /// Create new DeepSeek client
     pub fn new(api_key: &str, model: &str) -> Result<Self> {
-        let client = create_http_client(Duration::from_secs(60))?;
+        let client = create_http_client(Duration::from_secs(300))?;
 
         Ok(Self {
-            base_url: "https://api.deepseek.com/v1".to_string(),
+            base_url: "https://api.deepseek.com".to_string(),
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            thinking_enabled: false,
+            reasoning_effort: None,
+            max_tokens: 500,
+            temperature: 0.7,
+            thinking_state: None,
         })
     }
 
-    /// Create with custom base URL
     pub fn with_base_url(api_key: &str, model: &str, base_url: &str) -> Result<Self> {
-        let client = create_http_client(Duration::from_secs(60))?;
+        let client = create_http_client(Duration::from_secs(300))?;
 
         Ok(Self {
             base_url: base_url.trim_end_matches('/').to_string(),
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            thinking_enabled: false,
+            reasoning_effort: None,
+            max_tokens: 500,
+            temperature: 0.7,
+            thinking_state: None,
         })
     }
 
-    /// Set timeout
     pub fn with_timeout(mut self, timeout: Duration) -> Result<Self> {
         self.client = create_http_client(timeout)?;
         Ok(self)
     }
 
-    /// Validate API key
+    pub fn with_thinking(mut self, enabled: bool) -> Self {
-    pub async fn validate_key(&self) -> Result<bool> {
+        self.thinking_enabled = enabled;
+        self
+    }
+
+    pub fn with_reasoning_effort(mut self, effort: Option<String>) -> Self {
+        self.reasoning_effort = effort;
+        self
+    }
+
+    pub fn with_max_tokens(mut self, max_tokens: u32) -> Self {
+        self.max_tokens = max_tokens;
+        self
+    }
+
+    pub fn with_temperature(mut self, temperature: f32) -> Self {
+        self.temperature = temperature;
+        self
+    }
+
+    pub fn with_thinking_state(mut self, state: Arc<ThinkingStateManager>) -> Self {
+        self.thinking_state = Some(state);
+        self
+    }
+
+    pub async fn list_models(&self) -> Result<Vec<String>> {
         let url = format!("{}/models", self.base_url);
 
-        let response = self.client
+        let response = self
+            .client
             .get(&url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .send()
             .await
-            .context("Failed to validate DeepSeek API key")?;
+            .context("Failed to list DeepSeek models")?;
 
-        if response.status().is_success() {
+        if !response.status().is_success() {
-            Ok(true)
-        } else if response.status().as_u16() == 401 {
-            Ok(false)
-        } else {
             let status = response.status();
             let text = response.text().await.unwrap_or_default();
-            bail!("DeepSeek API error: {} - {}", status, text)
+            bail!("DeepSeek API error: {} - {}", status, text);
+        }
+
+        #[derive(Deserialize)]
+        struct ModelsResponse {
+            data: Vec<ModelId>,
+        }
+
+        #[derive(Deserialize)]
+        struct ModelId {
+            id: String,
+        }
+
+        let result: ModelsResponse = response
+            .json()
+            .await
+            .context("Failed to parse DeepSeek response")?;
+
+        Ok(result.data.into_iter().map(|m| m.id).collect())
+    }
+
+    pub async fn validate_key(&self) -> Result<bool> {
+        match self.list_models().await {
+            Ok(_) => Ok(true),
+            Err(e) => {
+                let err_str = e.to_string();
+                if err_str.contains("401") || err_str.contains("Unauthorized") {
+                    Ok(false)
+                } else {
+                    Err(e)
+                }
+            }
         }
     }
 }
@@ -108,14 +217,13 @@ impl DeepSeekClient {
 #[async_trait]
 impl LlmProvider for DeepSeekClient {
     async fn generate(&self, prompt: &str) -> Result<String> {
-        let messages = vec![
+        let messages = vec![Message {
-            Message {
+            role: "user".to_string(),
-                role: "user".to_string(),
+            content: prompt.to_string(),
-                content: prompt.to_string(),
+            reasoning_content: None,
-            },
+        }];
-        ];
 
-        self.chat_completion(messages).await
+        self.chat_completion_with_retry(messages).await
     }
 
     async fn generate_with_system(&self, system: &str, user: &str) -> Result<String> {
@@ -125,15 +233,17 @@ impl LlmProvider for DeepSeekClient {
             messages.push(Message {
                 role: "system".to_string(),
                 content: system.to_string(),
+                reasoning_content: None,
             });
         }
 
         messages.push(Message {
             role: "user".to_string(),
             content: user.to_string(),
+            reasoning_content: None,
         });
 
-        self.chat_completion(messages).await
+        self.chat_completion_with_retry(messages).await
     }
 
     async fn is_available(&self) -> bool {
@@ -146,22 +256,102 @@ impl LlmProvider for DeepSeekClient {
 }
 
 impl DeepSeekClient {
+    async fn chat_completion_with_retry(&self, messages: Vec<Message>) -> Result<String> {
+        let mut last_error = None;
+
+        for attempt in 1..=3 {
+            match self.chat_completion(messages.clone()).await {
+                Ok(result) => return Ok(result),
+                Err(e) => {
+                    let err_msg = e.to_string();
+                    // 网络临时错误才重试
+                    let is_retryable = err_msg.contains("timeout")
+                        || err_msg.contains("connection")
+                        || err_msg.contains("temporary")
+                        || err_msg.contains("5")
+                            && (err_msg.contains("500")
+                                || err_msg.contains("502")
+                                || err_msg.contains("503")
+                                || err_msg.contains("504"));
+
+                    if !is_retryable || attempt == 3 {
+                        last_error = Some(e);
+                        break;
+                    }
+
+                    // 指数退避
+                    tokio::time::sleep(Duration::from_millis(500 * 2u64.pow(attempt - 1))).await;
+                }
+            }
+        }
+
+        Err(last_error.unwrap_or_else(|| anyhow::anyhow!("Request failed after retries")))
+    }
+
     async fn chat_completion(&self, messages: Vec<Message>) -> Result<String> {
         let url = format!("{}/chat/completions", self.base_url);
 
-        let request = ChatCompletionRequest {
+        let thinking = Some(ThinkingConfig {
-            model: self.model.clone(),
+            thinking_type: if self.thinking_enabled {
-            messages,
+                "enabled".to_string()
-            max_tokens: Some(500),
+            } else {
-            temperature: Some(0.7),
+                "disabled".to_string()
-            stream: false,
+            },
+        });
+
+        // 思考模式下，temperature/top_p 等参数不应传递
+        // 非思考模式下可以正常传递
+        let (temperature, max_tokens, top_p, presence_penalty, frequency_penalty) =
+            if self.thinking_enabled {
+                (None, Some(self.max_tokens), None, None, None)
+            } else {
+                (
+                    Some(self.temperature),
+                    Some(self.max_tokens),
+                    None,
+                    None,
+                    None,
+                )
+            };
+
+        let reasoning_effort = if self.thinking_enabled {
+            self.reasoning_effort.clone()
+        } else {
+            None
         };
 
-        let response = self.client
+        let request = ChatCompletionRequest {
-            .post(&url)
+            model: self.model.clone(),
+            messages: messages.clone(),
+            max_tokens,
+            temperature,
+            top_p,
+            presence_penalty,
+            frequency_penalty,
+            stream: self.thinking_enabled,
+            thinking,
+            reasoning_effort,
+        };
+
+        if self.thinking_enabled {
+            self.streaming_chat_completion(&url, &request).await
+        } else {
+            self.non_streaming_chat_completion(&url, &request).await
+        }
+    }
+
+    /// 非流式请求（非思考模式）
+    async fn non_streaming_chat_completion(
+        &self,
+        url: &str,
+        request: &ChatCompletionRequest,
+    ) -> Result<String> {
+        let response = self
+            .client
+            .post(url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .header("Content-Type", "application/json")
-            .json(&request)
+            .json(request)
             .send()
             .await
             .context("Failed to send request to DeepSeek")?;
@@ -171,9 +361,12 @@ impl DeepSeekClient {
         if !status.is_success() {
             let text = response.text().await.unwrap_or_default();
 
-            // Try to parse error
             if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
-                bail!("DeepSeek API error: {} ({})", error.error.message, error.error.error_type);
+                bail!(
+                    "DeepSeek API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
             }
 
             bail!("DeepSeek API error: {} - {}", status, text);
@@ -184,21 +377,170 @@ impl DeepSeekClient {
             .await
             .context("Failed to parse DeepSeek response")?;
 
-        result.choices
+        result
+            .choices
             .into_iter()
             .next()
             .map(|c| c.message.content.trim().to_string())
+            .filter(|s| !s.is_empty())
             .ok_or_else(|| anyhow::anyhow!("No response from DeepSeek"))
     }
+
+    /// 流式请求（思考模式），处理 reasoning_content 和 content
+    async fn streaming_chat_completion(
+        &self,
+        url: &str,
+        request: &ChatCompletionRequest,
+    ) -> Result<String> {
+        let response = self
+            .client
+            .post(url)
+            .header("Authorization", format!("Bearer {}", self.api_key))
+            .header("Content-Type", "application/json")
+            .header("Accept", "text/event-stream")
+            .json(request)
+            .send()
+            .await
+            .context("Failed to send streaming request to DeepSeek")?;
+
+        let status = response.status();
+
+        if !status.is_success() {
+            let text = response.text().await.unwrap_or_default();
+
+            if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
+                bail!(
+                    "DeepSeek API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
+            }
+
+            bail!("DeepSeek API error: {} - {}", status, text);
+        }
+
+        let mut content_buffer = String::new();
+        let mut has_reasoning = false;
+        let mut has_content = false;
+        let mut stream_ended = false;
+
+        let thinking_state = self.thinking_state.as_ref();
+
+        let mut byte_stream = response.bytes_stream();
+        let mut line_buffer = String::new();
+
+        use futures_util::StreamExt;
+
+        while let Some(chunk) = byte_stream.next().await {
+            let chunk = chunk.context("Failed to read streaming response chunk")?;
+            let chunk_str =
+                String::from_utf8(chunk.to_vec()).context("Invalid UTF-8 in stream chunk")?;
+
+            line_buffer.push_str(&chunk_str);
+
+            // 处理完整行
+            while let Some(line_end) = line_buffer.find('\n') {
+                let line = line_buffer[..line_end].trim().to_string();
+                line_buffer = line_buffer[line_end + 1..].to_string();
+
+                if line.is_empty() {
+                    continue;
+                }
+
+                // SSE 格式：data: {...} 或 data: [DONE]
+                if line == "data: [DONE]" {
+                    stream_ended = true;
+                    break;
+                }
+
+                if let Some(json_str) = line.strip_prefix("data: ") {
+                    match serde_json::from_str::<StreamChunk>(json_str) {
+                        Ok(chunk) => {
+                            for choice in &chunk.choices {
+                                // 处理 reasoning_content
+                                if let Some(ref reasoning) = choice.delta.reasoning_content
+                                    && !reasoning.is_empty()
+                                {
+                                    if !has_reasoning {
+                                        has_reasoning = true;
+                                        if let Some(state) = thinking_state {
+                                            state.start_thinking();
+                                        }
+                                    }
+                                    // reasoning_content 不对外输出，仅用于内部状态判断
+                                    continue;
+                                }
+
+                                // 处理 content
+                                if let Some(ref content) = choice.delta.content
+                                    && !content.is_empty()
+                                {
+                                    // reasoning 结束，content 开始出现时移除 thinking 标识
+                                    if has_reasoning
+                                        && !has_content
+                                        && let Some(state) = thinking_state
+                                    {
+                                        state.end_thinking();
+                                    }
+                                    has_content = true;
+                                    content_buffer.push_str(content);
+                                }
+
+                                // 检查 finish_reason
+                                if let Some(ref reason) = choice.finish_reason
+                                    && reason == "stop"
+                                {
+                                    stream_ended = true;
+                                }
+                            }
+                        }
+                        Err(_) => {
+                            // 忽略无法解析的行（可能是心跳或注释）
+                        }
+                    }
+                }
+            }
+
+            if stream_ended {
+                break;
+            }
+        }
+
+        // 确保思考状态已结束
+        if let Some(state) = thinking_state {
+            state.end_thinking();
+        }
+
+        let result = content_buffer.trim().to_string();
+
+        if result.is_empty() {
+            if has_reasoning && !has_content {
+                bail!(
+                    "DeepSeek returned reasoning content but no final answer. \
+                     The model may have entered an incomplete thinking state. \
+                     Please try again or disable thinking mode."
+                );
+            }
+            bail!(
+                "No response from DeepSeek. \
+                 If thinking mode is enabled, try disabling it or ensure the model supports it."
+            );
+        }
+
+        Ok(result)
+    }
 }
 
-/// Available DeepSeek models
+/// 可用 DeepSeek 模型列表
+/// deepseek-chat / deepseek-reasoner 将于 2026-07-24 停用，推荐使用 V4 系列
 pub const DEEPSEEK_MODELS: &[&str] = &[
+    "deepseek-v4-flash",
+    "deepseek-v4-pro",
+    // 兼容旧版模型 ID（将于 2026-07-24 停用）
     "deepseek-chat",
-    "deepseek-coder",
+    "deepseek-reasoner",
 ];
 
-/// Check if a model name is valid
 pub fn is_valid_model(model: &str) -> bool {
     DEEPSEEK_MODELS.contains(&model)
 }
@@ -208,8 +550,73 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_model_validation() {
+    fn test_model_validation_v4() {
+        assert!(is_valid_model("deepseek-v4-flash"));
+        assert!(is_valid_model("deepseek-v4-pro"));
         assert!(is_valid_model("deepseek-chat"));
+        assert!(is_valid_model("deepseek-reasoner"));
         assert!(!is_valid_model("invalid-model"));
+        assert!(!is_valid_model("deepseek-v3"));
+    }
+
+    #[test]
+    fn test_client_builder_defaults() {
+        let client = DeepSeekClient::new("test-key", "deepseek-v4-flash").unwrap();
+        assert!(!client.thinking_enabled);
+        assert_eq!(client.max_tokens, 500);
+        assert_eq!(client.temperature, 0.7);
+        assert!(client.reasoning_effort.is_none());
+        assert!(client.thinking_state.is_none());
+    }
+
+    #[test]
+    fn test_client_builder_with_thinking() {
+        let client = DeepSeekClient::new("test-key", "deepseek-v4-flash")
+            .unwrap()
+            .with_thinking(true)
+            .with_reasoning_effort(Some("high".to_string()))
+            .with_max_tokens(1000)
+            .with_temperature(0.5);
+
+        assert!(client.thinking_enabled);
+        assert_eq!(client.reasoning_effort, Some("high".to_string()));
+        assert_eq!(client.max_tokens, 1000);
+        assert_eq!(client.temperature, 0.5);
+    }
+
+    #[test]
+    fn test_thinking_config_serialization() {
+        let config = ThinkingConfig {
+            thinking_type: "enabled".to_string(),
+        };
+        let json = serde_json::to_string(&config).unwrap();
+        assert_eq!(json, r#"{"type":"enabled"}"#);
+    }
+
+    #[test]
+    fn test_message_serialization_without_reasoning() {
+        let msg = Message {
+            role: "user".to_string(),
+            content: "Hello".to_string(),
+            reasoning_content: None,
+        };
+        let json = serde_json::to_string(&msg).unwrap();
+        assert!(!json.contains("reasoning_content"));
+    }
+
+    #[test]
+    fn test_stream_delta_parsing() {
+        let json = r#"{"content":"Hello","reasoning_content":null}"#;
+        let delta: StreamDelta = serde_json::from_str(json).unwrap();
+        assert_eq!(delta.content, Some("Hello".to_string()));
+        assert!(delta.reasoning_content.is_none());
+    }
+
+    #[test]
+    fn test_stream_delta_reasoning_only() {
+        let json = r#"{"content":null,"reasoning_content":"Let me think..."}"#;
+        let delta: StreamDelta = serde_json::from_str(json).unwrap();
+        assert!(delta.content.is_none());
+        assert_eq!(delta.reasoning_content, Some("Let me think...".to_string()));
     }
 }

src/llm/kimi.rs

@@ -1,7 +1,9 @@
-use super::{create_http_client, LlmProvider};
+use super::thinking::ThinkingStateManager;
-use anyhow::{bail, Context, Result};
+use super::{LlmProvider, create_http_client};
+use anyhow::{Context, Result, bail};
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
+use std::sync::Arc;
 use std::time::Duration;
 
 /// Kimi API client (Moonshot AI)
@@ -10,6 +12,10 @@ pub struct KimiClient {
     api_key: String,
     model: String,
     client: reqwest::Client,
+    thinking_enabled: bool,
+    max_tokens: u32,
+    temperature: f32,
+    thinking_state: Option<Arc<ThinkingStateManager>>,
 }
 
 #[derive(Debug, Serialize)]
@@ -21,12 +27,22 @@ struct ChatCompletionRequest {
     #[serde(skip_serializing_if = "Option::is_none")]
     temperature: Option<f32>,
     stream: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    thinking: Option<ThinkingConfig>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize)]
+struct ThinkingConfig {
+    #[serde(rename = "type")]
+    thinking_type: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
 struct Message {
     role: String,
     content: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    reasoning_content: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
@@ -37,6 +53,31 @@ struct ChatCompletionResponse {
 #[derive(Debug, Deserialize)]
 struct Choice {
     message: Message,
+    #[serde(default)]
+    reasoning_content: Option<String>,
+}
+
+// --- Streaming response structures ---
+
+#[derive(Debug, Deserialize)]
+struct StreamChunk {
+    choices: Vec<StreamChoice>,
+}
+
+#[derive(Debug, Deserialize)]
+struct StreamChoice {
+    delta: StreamDelta,
+    #[serde(default)]
+    finish_reason: Option<String>,
+    index: Option<u32>,
+}
+
+#[derive(Debug, Deserialize, Default)]
+struct StreamDelta {
+    #[serde(default)]
+    content: Option<String>,
+    #[serde(default)]
+    reasoning_content: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
@@ -52,55 +93,107 @@ struct ApiError {
 }
 
 impl KimiClient {
-    /// Create new Kimi client
     pub fn new(api_key: &str, model: &str) -> Result<Self> {
-        let client = create_http_client(Duration::from_secs(60))?;
+        let client = create_http_client(Duration::from_secs(300))?;
 
         Ok(Self {
             base_url: "https://api.moonshot.cn/v1".to_string(),
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            thinking_enabled: false,
+            max_tokens: 500,
+            temperature: 1.0,
+            thinking_state: None,
         })
     }
 
-    /// Create with custom base URL
     pub fn with_base_url(api_key: &str, model: &str, base_url: &str) -> Result<Self> {
-        let client = create_http_client(Duration::from_secs(60))?;
+        let client = create_http_client(Duration::from_secs(300))?;
 
         Ok(Self {
             base_url: base_url.trim_end_matches('/').to_string(),
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            thinking_enabled: false,
+            max_tokens: 500,
+            temperature: 1.0,
+            thinking_state: None,
         })
     }
 
-    /// Set timeout
     pub fn with_timeout(mut self, timeout: Duration) -> Result<Self> {
         self.client = create_http_client(timeout)?;
         Ok(self)
     }
 
-    /// Validate API key
+    pub fn with_thinking(mut self, enabled: bool) -> Self {
-    pub async fn validate_key(&self) -> Result<bool> {
+        self.thinking_enabled = enabled;
+        self
+    }
+
+    pub fn with_max_tokens(mut self, max_tokens: u32) -> Self {
+        self.max_tokens = max_tokens;
+        self
+    }
+
+    pub fn with_temperature(mut self, temperature: f32) -> Self {
+        self.temperature = temperature;
+        self
+    }
+
+    pub fn with_thinking_state(mut self, state: Arc<ThinkingStateManager>) -> Self {
+        self.thinking_state = Some(state);
+        self
+    }
+
+    pub async fn list_models(&self) -> Result<Vec<String>> {
         let url = format!("{}/models", self.base_url);
 
-        let response = self.client
+        let response = self
+            .client
             .get(&url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .send()
             .await
-            .context("Failed to validate Kimi API key")?;
+            .context("Failed to list Kimi models")?;
 
-        if response.status().is_success() {
+        if !response.status().is_success() {
-            Ok(true)
-        } else if response.status().as_u16() == 401 {
-            Ok(false)
-        } else {
             let status = response.status();
             let text = response.text().await.unwrap_or_default();
-            bail!("Kimi API error: {} - {}", status, text)
+            bail!("Kimi API error: {} - {}", status, text);
+        }
+
+        #[derive(Deserialize)]
+        struct ModelsResponse {
+            data: Vec<ModelId>,
+        }
+
+        #[derive(Deserialize)]
+        struct ModelId {
+            id: String,
+        }
+
+        let result: ModelsResponse = response
+            .json()
+            .await
+            .context("Failed to parse Kimi response")?;
+
+        Ok(result.data.into_iter().map(|m| m.id).collect())
+    }
+
+    pub async fn validate_key(&self) -> Result<bool> {
+        match self.list_models().await {
+            Ok(_) => Ok(true),
+            Err(e) => {
+                let err_str = e.to_string();
+                if err_str.contains("401") || err_str.contains("Unauthorized") {
+                    Ok(false)
+                } else {
+                    Err(e)
+                }
+            }
         }
     }
 }
@@ -108,14 +201,13 @@ impl KimiClient {
 #[async_trait]
 impl LlmProvider for KimiClient {
     async fn generate(&self, prompt: &str) -> Result<String> {
-        let messages = vec![
+        let messages = vec![Message {
-            Message {
+            role: "user".to_string(),
-                role: "user".to_string(),
+            content: prompt.to_string(),
-                content: prompt.to_string(),
+            reasoning_content: None,
-            },
+        }];
-        ];
 
-        self.chat_completion(messages).await
+        self.chat_completion_with_retry(messages).await
     }
 
     async fn generate_with_system(&self, system: &str, user: &str) -> Result<String> {
@@ -125,15 +217,17 @@ impl LlmProvider for KimiClient {
             messages.push(Message {
                 role: "system".to_string(),
                 content: system.to_string(),
+                reasoning_content: None,
             });
         }
 
         messages.push(Message {
             role: "user".to_string(),
             content: user.to_string(),
+            reasoning_content: None,
         });
 
-        self.chat_completion(messages).await
+        self.chat_completion_with_retry(messages).await
     }
 
     async fn is_available(&self) -> bool {
@@ -146,22 +240,84 @@ impl LlmProvider for KimiClient {
 }
 
 impl KimiClient {
+    async fn chat_completion_with_retry(&self, messages: Vec<Message>) -> Result<String> {
+        let mut last_error = None;
+
+        for attempt in 1..=3 {
+            match self.chat_completion(messages.clone()).await {
+                Ok(result) => return Ok(result),
+                Err(e) => {
+                    let err_msg = e.to_string();
+                    let is_retryable = err_msg.contains("timeout")
+                        || err_msg.contains("connection")
+                        || err_msg.contains("temporary")
+                        || err_msg.contains("5")
+                            && (err_msg.contains("500")
+                                || err_msg.contains("502")
+                                || err_msg.contains("503")
+                                || err_msg.contains("504"));
+
+                    if !is_retryable || attempt == 3 {
+                        last_error = Some(e);
+                        break;
+                    }
+
+                    tokio::time::sleep(Duration::from_millis(500 * 2u64.pow(attempt - 1))).await;
+                }
+            }
+        }
+
+        Err(last_error.unwrap_or_else(|| anyhow::anyhow!("Request failed after retries")))
+    }
+
     async fn chat_completion(&self, messages: Vec<Message>) -> Result<String> {
         let url = format!("{}/chat/completions", self.base_url);
 
-        let request = ChatCompletionRequest {
+        let thinking = Some(ThinkingConfig {
-            model: self.model.clone(),
+            thinking_type: if self.thinking_enabled {
-            messages,
+                "enabled".to_string()
-            max_tokens: Some(500),
+            } else {
-            temperature: Some(0.7),
+                "disabled".to_string()
-            stream: false,
+            },
+        });
+
+        // Kimi API temperature 要求:
+        // - 思考模式: temperature 必须为 1.0
+        // - 非思考模式: temperature 必须为 0.6
+        let temperature = if self.thinking_enabled {
+            Some(1.0)
+        } else {
+            Some(0.6)
         };
 
-        let response = self.client
+        let request = ChatCompletionRequest {
-            .post(&url)
+            model: self.model.clone(),
+            messages: messages.clone(),
+            max_tokens: Some(self.max_tokens),
+            temperature,
+            stream: self.thinking_enabled,
+            thinking,
+        };
+
+        if self.thinking_enabled {
+            self.streaming_chat_completion(&url, &request).await
+        } else {
+            self.non_streaming_chat_completion(&url, &request).await
+        }
+    }
+
+    /// 非流式请求（非思考模式）
+    async fn non_streaming_chat_completion(
+        &self,
+        url: &str,
+        request: &ChatCompletionRequest,
+    ) -> Result<String> {
+        let response = self
+            .client
+            .post(url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .header("Content-Type", "application/json")
-            .json(&request)
+            .json(request)
             .send()
             .await
             .context("Failed to send request to Kimi")?;
@@ -171,9 +327,12 @@ impl KimiClient {
         if !status.is_success() {
             let text = response.text().await.unwrap_or_default();
 
-            // Try to parse error
             if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
-                bail!("Kimi API error: {} ({})", error.error.message, error.error.error_type);
+                bail!(
+                    "Kimi API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
             }
 
             bail!("Kimi API error: {} - {}", status, text);
@@ -184,22 +343,178 @@ impl KimiClient {
             .await
             .context("Failed to parse Kimi response")?;
 
-        result.choices
+        result
+            .choices
             .into_iter()
             .next()
-            .map(|c| c.message.content.trim().to_string())
+            .map(|c| {
+                let content = c.message.content.trim().to_string();
+                if content.is_empty() {
+                    c.reasoning_content
+                        .or(c.message.reasoning_content)
+                        .map(|r| r.trim().to_string())
+                        .unwrap_or_default()
+                } else {
+                    content
+                }
+            })
+            .filter(|s| !s.is_empty())
             .ok_or_else(|| anyhow::anyhow!("No response from Kimi"))
     }
+
+    /// 流式请求（思考模式），处理 reasoning_content 和 content
+    async fn streaming_chat_completion(
+        &self,
+        url: &str,
+        request: &ChatCompletionRequest,
+    ) -> Result<String> {
+        let response = self
+            .client
+            .post(url)
+            .header("Authorization", format!("Bearer {}", self.api_key))
+            .header("Content-Type", "application/json")
+            .header("Accept", "text/event-stream")
+            .json(request)
+            .send()
+            .await
+            .context("Failed to send streaming request to Kimi")?;
+
+        let status = response.status();
+
+        if !status.is_success() {
+            let text = response.text().await.unwrap_or_default();
+
+            if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
+                bail!(
+                    "Kimi API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
+            }
+
+            bail!("Kimi API error: {} - {}", status, text);
+        }
+
+        let mut content_buffer = String::new();
+        let mut has_reasoning = false;
+        let mut has_content = false;
+        let mut stream_ended = false;
+
+        let thinking_state = self.thinking_state.as_ref();
+
+        let mut byte_stream = response.bytes_stream();
+        let mut line_buffer = String::new();
+
+        use futures_util::StreamExt;
+
+        while let Some(chunk) = byte_stream.next().await {
+            let chunk = chunk.context("Failed to read streaming response chunk")?;
+            let chunk_str =
+                String::from_utf8(chunk.to_vec()).context("Invalid UTF-8 in stream chunk")?;
+
+            line_buffer.push_str(&chunk_str);
+
+            while let Some(line_end) = line_buffer.find('\n') {
+                let line = line_buffer[..line_end].trim().to_string();
+                line_buffer = line_buffer[line_end + 1..].to_string();
+
+                if line.is_empty() {
+                    continue;
+                }
+
+                if line == "data: [DONE]" {
+                    stream_ended = true;
+                    break;
+                }
+
+                if let Some(json_str) = line.strip_prefix("data: ") {
+                    match serde_json::from_str::<StreamChunk>(json_str) {
+                        Ok(chunk) => {
+                            for choice in &chunk.choices {
+                                if let Some(ref reasoning) = choice.delta.reasoning_content
+                                    && !reasoning.is_empty()
+                                {
+                                    if !has_reasoning {
+                                        has_reasoning = true;
+                                        if let Some(state) = thinking_state {
+                                            state.start_thinking();
+                                        }
+                                    }
+                                    continue;
+                                }
+
+                                if let Some(ref content) = choice.delta.content
+                                    && !content.is_empty()
+                                {
+                                    if has_reasoning
+                                        && !has_content
+                                        && let Some(state) = thinking_state
+                                    {
+                                        state.end_thinking();
+                                    }
+                                    has_content = true;
+                                    content_buffer.push_str(content);
+                                }
+
+                                if let Some(ref reason) = choice.finish_reason
+                                    && reason == "stop"
+                                {
+                                    stream_ended = true;
+                                }
+                            }
+                        }
+                        Err(_) => {
+                            // 忽略无法解析的行
+                        }
+                    }
+                }
+            }
+
+            if stream_ended {
+                break;
+            }
+        }
+
+        // 确保思考状态已结束
+        if let Some(state) = thinking_state {
+            state.end_thinking();
+        }
+
+        let result = content_buffer.trim().to_string();
+
+        if result.is_empty() {
+            if has_reasoning && !has_content {
+                bail!(
+                    "Kimi returned reasoning content but no final answer. \
+                     The model may have entered an incomplete thinking state. \
+                     Please try again or disable thinking mode."
+                );
+            }
+            bail!(
+                "No response from Kimi. \
+                 If thinking mode is enabled, try disabling it or ensure the model supports it."
+            );
+        }
+
+        Ok(result)
+    }
 }
 
-/// Available Kimi models
+/// 可用 Kimi 模型列表
 pub const KIMI_MODELS: &[&str] = &[
+    // K2 系列（推荐）
+    "kimi-k2.6",
+    "kimi-k2.5",
+    "kimi-k2-thinking",
+    "kimi-k2-thinking-turbo",
+    "kimi-k2-instruct",
+    "kimi-k2-instruct-0905",
+    // 兼容旧版模型 ID
     "moonshot-v1-8k",
     "moonshot-v1-32k",
     "moonshot-v1-128k",
 ];
 
-/// Check if a model name is valid
 pub fn is_valid_model(model: &str) -> bool {
     KIMI_MODELS.contains(&model)
 }
@@ -209,8 +524,64 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_model_validation() {
+    fn test_model_validation_k2() {
+        assert!(is_valid_model("kimi-k2.6"));
+        assert!(is_valid_model("kimi-k2.5"));
+        assert!(is_valid_model("kimi-k2-thinking"));
+        assert!(is_valid_model("kimi-k2-thinking-turbo"));
         assert!(is_valid_model("moonshot-v1-8k"));
+        assert!(is_valid_model("moonshot-v1-32k"));
+        assert!(is_valid_model("moonshot-v1-128k"));
         assert!(!is_valid_model("invalid-model"));
+        assert!(!is_valid_model("kimi-k1.5"));
+    }
+
+    #[test]
+    fn test_client_builder_defaults() {
+        let client = KimiClient::new("test-key", "kimi-k2.6").unwrap();
+        assert!(!client.thinking_enabled);
+        assert_eq!(client.max_tokens, 500);
+        assert_eq!(client.temperature, 1.0);
+        assert!(client.thinking_state.is_none());
+    }
+
+    #[test]
+    fn test_client_builder_with_thinking() {
+        let client = KimiClient::new("test-key", "kimi-k2.6")
+            .unwrap()
+            .with_thinking(true)
+            .with_max_tokens(1000)
+            .with_temperature(0.5);
+
+        assert!(client.thinking_enabled);
+        assert_eq!(client.max_tokens, 1000);
+        assert_eq!(client.temperature, 0.5);
+    }
+
+    #[test]
+    fn test_thinking_config_serialization() {
+        let config = ThinkingConfig {
+            thinking_type: "enabled".to_string(),
+        };
+        let json = serde_json::to_string(&config).unwrap();
+        assert_eq!(json, r#"{"type":"enabled"}"#);
+    }
+
+    #[test]
+    fn test_client_new_defaults() {
+        let client = KimiClient::new("test-key", "kimi-k2.6").unwrap();
+        assert_eq!(client.name(), "kimi");
+        assert!(!client.thinking_enabled);
+    }
+
+    #[test]
+    fn test_message_serialization() {
+        let msg = Message {
+            role: "user".to_string(),
+            content: "Hello".to_string(),
+            reasoning_content: None,
+        };
+        let json = serde_json::to_string(&msg).unwrap();
+        assert!(!json.contains("reasoning_content"));
     }
 }

src/llm/ollama.rs

@@ -1,4 +1,4 @@
-use super::{create_http_client, LlmProvider};
+use super::{LlmProvider, create_http_client};
 use anyhow::{Context, Result};
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
@@ -9,6 +9,9 @@ pub struct OllamaClient {
     base_url: String,
     model: String,
     client: reqwest::Client,
+    max_tokens: u32,
+    temperature: f32,
+    top_p: Option<f32>,
 }
 
 #[derive(Debug, Serialize)]
@@ -47,20 +50,37 @@ struct ModelInfo {
 impl OllamaClient {
     /// Create new Ollama client
     pub fn new(base_url: &str, model: &str) -> Self {
-        let client = create_http_client(Duration::from_secs(120))
+        let client =
-            .expect("Failed to create HTTP client");
+            create_http_client(Duration::from_secs(120)).expect("Failed to create HTTP client");
 
         Self {
             base_url: base_url.trim_end_matches('/').to_string(),
             model: model.to_string(),
             client,
+            max_tokens: 500,
+            temperature: 0.7,
+            top_p: None,
         }
     }
 
     /// Set timeout
     pub fn with_timeout(mut self, timeout: Duration) -> Self {
-        self.client = create_http_client(timeout)
+        self.client = create_http_client(timeout).expect("Failed to create HTTP client");
-            .expect("Failed to create HTTP client");
+        self
+    }
+
+    pub fn with_max_tokens(mut self, max_tokens: u32) -> Self {
+        self.max_tokens = max_tokens;
+        self
+    }
+
+    pub fn with_temperature(mut self, temperature: f32) -> Self {
+        self.temperature = temperature;
+        self
+    }
+
+    pub fn with_top_p(mut self, top_p: f32) -> Self {
+        self.top_p = Some(top_p);
         self
     }
 
@@ -68,7 +88,8 @@ impl OllamaClient {
     pub async fn list_models(&self) -> Result<Vec<String>> {
         let url = format!("{}/api/tags", self.base_url);
 
-        let response = self.client
+        let response = self
+            .client
             .get(&url)
             .send()
             .await
@@ -97,7 +118,8 @@ impl OllamaClient {
             "stream": false,
         });
 
-        let response = self.client
+        let response = self
+            .client
             .post(&url)
             .json(&request)
             .send()
@@ -143,12 +165,13 @@ impl LlmProvider for OllamaClient {
             system,
             stream: false,
             options: GenerationOptions {
-                temperature: Some(0.7),
+                temperature: Some(self.temperature),
-                num_predict: Some(500),
+                num_predict: Some(self.max_tokens),
             },
         };
 
-        let response = self.client
+        let response = self
+            .client
             .post(&url)
             .json(&request)
             .send()

src/llm/openai.rs

@@ -1,15 +1,23 @@
-use super::{create_http_client, LlmProvider};
+use super::thinking::ThinkingStateManager;
-use anyhow::{bail, Context, Result};
+use super::{LlmProvider, create_http_client};
+use anyhow::{Context, Result, bail};
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
+use std::sync::Arc;
 use std::time::Duration;
 
-/// OpenAI API client
+/// OpenAI API client with o-series reasoning support
 pub struct OpenAiClient {
     base_url: String,
     api_key: String,
     model: String,
     client: reqwest::Client,
+    thinking_enabled: bool,
+    reasoning_effort: Option<String>,
+    max_tokens: u32,
+    temperature: f32,
+    top_p: Option<f32>,
+    thinking_state: Option<Arc<ThinkingStateManager>>,
 }
 
 #[derive(Debug, Serialize)]
@@ -20,10 +28,14 @@ struct ChatCompletionRequest {
     max_tokens: Option<u32>,
     #[serde(skip_serializing_if = "Option::is_none")]
     temperature: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    top_p: Option<f32>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    reasoning_effort: Option<String>,
     stream: bool,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 struct Message {
     role: String,
     content: String,
@@ -39,6 +51,28 @@ struct Choice {
     message: Message,
 }
 
+// --- Streaming response structures ---
+
+#[derive(Debug, Deserialize)]
+struct StreamChunk {
+    choices: Vec<StreamChoice>,
+}
+
+#[derive(Debug, Deserialize)]
+struct StreamChoice {
+    delta: StreamDelta,
+    #[serde(default)]
+    finish_reason: Option<String>,
+}
+
+#[derive(Debug, Deserialize, Default)]
+struct StreamDelta {
+    #[serde(default)]
+    content: Option<String>,
+    #[serde(default)]
+    reasoning_content: Option<String>,
+}
+
 #[derive(Debug, Deserialize)]
 struct ErrorResponse {
     error: ApiError,
@@ -61,20 +95,55 @@ impl OpenAiClient {
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            thinking_enabled: false,
+            reasoning_effort: None,
+            max_tokens: 500,
+            temperature: 0.7,
+            top_p: None,
+            thinking_state: None,
         })
     }
 
-    /// Set timeout
     pub fn with_timeout(mut self, timeout: Duration) -> Result<Self> {
         self.client = create_http_client(timeout)?;
         Ok(self)
     }
 
-    /// List available models
+    pub fn with_thinking(mut self, enabled: bool) -> Self {
+        self.thinking_enabled = enabled;
+        self
+    }
+
+    pub fn with_reasoning_effort(mut self, effort: Option<String>) -> Self {
+        self.reasoning_effort = effort;
+        self
+    }
+
+    pub fn with_max_tokens(mut self, max_tokens: u32) -> Self {
+        self.max_tokens = max_tokens;
+        self
+    }
+
+    pub fn with_temperature(mut self, temperature: f32) -> Self {
+        self.temperature = temperature;
+        self
+    }
+
+    pub fn with_top_p(mut self, top_p: f32) -> Self {
+        self.top_p = Some(top_p);
+        self
+    }
+
+    pub fn with_thinking_state(mut self, state: Arc<ThinkingStateManager>) -> Self {
+        self.thinking_state = Some(state);
+        self
+    }
+
     pub async fn list_models(&self) -> Result<Vec<String>> {
         let url = format!("{}/models", self.base_url);
 
-        let response = self.client
+        let response = self
+            .client
             .get(&url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .send()
@@ -105,7 +174,6 @@ impl OpenAiClient {
         Ok(result.data.into_iter().map(|m| m.id).collect())
     }
 
-    /// Validate API key
     pub async fn validate_key(&self) -> Result<bool> {
         match self.list_models().await {
             Ok(_) => Ok(true),
@@ -124,14 +192,12 @@ impl OpenAiClient {
 #[async_trait]
 impl LlmProvider for OpenAiClient {
     async fn generate(&self, prompt: &str) -> Result<String> {
-        let messages = vec![
+        let messages = vec![Message {
-            Message {
+            role: "user".to_string(),
-                role: "user".to_string(),
+            content: prompt.to_string(),
-                content: prompt.to_string(),
+        }];
-            },
-        ];
 
-        self.chat_completion(messages).await
+        self.chat_completion_with_retry(messages).await
     }
 
     async fn generate_with_system(&self, system: &str, user: &str) -> Result<String> {
@@ -149,7 +215,7 @@ impl LlmProvider for OpenAiClient {
             content: user.to_string(),
         });
 
-        self.chat_completion(messages).await
+        self.chat_completion_with_retry(messages).await
     }
 
     async fn is_available(&self) -> bool {
@@ -162,18 +228,63 @@ impl LlmProvider for OpenAiClient {
 }
 
 impl OpenAiClient {
+    async fn chat_completion_with_retry(&self, messages: Vec<Message>) -> Result<String> {
+        let mut last_error = None;
+
+        for attempt in 1..=3 {
+            match self.chat_completion(messages.clone()).await {
+                Ok(result) => return Ok(result),
+                Err(e) => {
+                    let err_msg = e.to_string();
+                    let is_retryable = err_msg.contains("timeout")
+                        || err_msg.contains("connection")
+                        || err_msg.contains("temporary")
+                        || err_msg.contains("5")
+                            && (err_msg.contains("500")
+                                || err_msg.contains("502")
+                                || err_msg.contains("503")
+                                || err_msg.contains("504"));
+
+                    if !is_retryable || attempt == 3 {
+                        last_error = Some(e);
+                        break;
+                    }
+
+                    tokio::time::sleep(Duration::from_millis(500 * 2u64.pow(attempt - 1))).await;
+                }
+            }
+        }
+
+        Err(last_error.unwrap_or_else(|| anyhow::anyhow!("Request failed after retries")))
+    }
+
     async fn chat_completion(&self, messages: Vec<Message>) -> Result<String> {
+        if self.thinking_enabled {
+            self.streaming_chat_completion(messages).await
+        } else {
+            self.non_streaming_chat_completion(messages).await
+        }
+    }
+
+    async fn non_streaming_chat_completion(&self, messages: Vec<Message>) -> Result<String> {
         let url = format!("{}/chat/completions", self.base_url);
 
         let request = ChatCompletionRequest {
             model: self.model.clone(),
             messages,
-            max_tokens: Some(500),
+            max_tokens: Some(self.max_tokens),
-            temperature: Some(0.7),
+            temperature: Some(self.temperature),
+            top_p: self.top_p,
+            reasoning_effort: if is_reasoning_model(&self.model) {
+                Some("none".to_string())
+            } else {
+                None
+            },
             stream: false,
         };
 
-        let response = self.client
+        let response = self
+            .client
             .post(&url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .header("Content-Type", "application/json")
@@ -187,9 +298,12 @@ impl OpenAiClient {
         if !status.is_success() {
             let text = response.text().await.unwrap_or_default();
 
-            // Try to parse error
             if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
-                bail!("OpenAI API error: {} ({})", error.error.message, error.error.error_type);
+                bail!(
+                    "OpenAI API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
             }
 
             bail!("OpenAI API error: {} - {}", status, text);
@@ -200,12 +314,144 @@ impl OpenAiClient {
             .await
             .context("Failed to parse OpenAI response")?;
 
-        result.choices
+        result
+            .choices
             .into_iter()
             .next()
             .map(|c| c.message.content.trim().to_string())
+            .filter(|s| !s.is_empty())
             .ok_or_else(|| anyhow::anyhow!("No response from OpenAI"))
     }
+
+    /// Streaming request for reasoning mode, filters reasoning_content from output
+    async fn streaming_chat_completion(&self, messages: Vec<Message>) -> Result<String> {
+        let url = format!("{}/chat/completions", self.base_url);
+
+        // For reasoning/thinking mode, omit temperature and top_p
+        let request = ChatCompletionRequest {
+            model: self.model.clone(),
+            messages,
+            max_tokens: Some(self.max_tokens),
+            temperature: None,
+            top_p: None,
+            reasoning_effort: self.reasoning_effort.clone(),
+            stream: true,
+        };
+
+        let response = self
+            .client
+            .post(&url)
+            .header("Authorization", format!("Bearer {}", self.api_key))
+            .header("Content-Type", "application/json")
+            .header("Accept", "text/event-stream")
+            .json(&request)
+            .send()
+            .await
+            .context("Failed to send streaming request to OpenAI")?;
+
+        let status = response.status();
+
+        if !status.is_success() {
+            let text = response.text().await.unwrap_or_default();
+
+            if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
+                bail!(
+                    "OpenAI API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
+            }
+
+            bail!("OpenAI API error: {} - {}", status, text);
+        }
+
+        let mut content_buffer = String::new();
+        let mut has_reasoning = false;
+        let mut has_content = false;
+
+        let thinking_state = self.thinking_state.as_ref();
+
+        let mut byte_stream = response.bytes_stream();
+        let mut line_buffer = String::new();
+
+        use futures_util::StreamExt;
+
+        while let Some(chunk) = byte_stream.next().await {
+            let chunk = chunk.context("Failed to read streaming response chunk")?;
+            let chunk_str =
+                String::from_utf8(chunk.to_vec()).context("Invalid UTF-8 in stream chunk")?;
+
+            line_buffer.push_str(&chunk_str);
+
+            while let Some(line_end) = line_buffer.find('\n') {
+                let line = line_buffer[..line_end].trim().to_string();
+                line_buffer = line_buffer[line_end + 1..].to_string();
+
+                if line.is_empty() {
+                    continue;
+                }
+
+                if line == "data: [DONE]" {
+                    break;
+                }
+
+                if let Some(json_str) = line.strip_prefix("data: ") {
+                    if let Ok(chunk) = serde_json::from_str::<StreamChunk>(json_str) {
+                        for choice in &chunk.choices {
+                            // Handle reasoning_content (o-series)
+                            if let Some(ref reasoning) = choice.delta.reasoning_content
+                                && !reasoning.is_empty()
+                            {
+                                if !has_reasoning {
+                                    has_reasoning = true;
+                                    if let Some(state) = thinking_state {
+                                        state.start_thinking();
+                                    }
+                                }
+                                continue;
+                            }
+
+                            // Handle content
+                            if let Some(ref content) = choice.delta.content
+                                && !content.is_empty()
+                            {
+                                if has_reasoning
+                                    && !has_content
+                                    && let Some(state) = thinking_state
+                                {
+                                    state.end_thinking();
+                                }
+                                has_content = true;
+                                content_buffer.push_str(content);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        if let Some(state) = thinking_state {
+            state.end_thinking();
+        }
+
+        let result = content_buffer.trim().to_string();
+
+        if result.is_empty() {
+            if has_reasoning && !has_content {
+                bail!(
+                    "OpenAI returned reasoning content but no final answer. \
+                     The model may have entered an incomplete reasoning state. \
+                     Please try again or disable thinking mode."
+                );
+            }
+            bail!(
+                "No response from OpenAI. \
+                 If thinking mode is enabled, try disabling it or ensure the model supports reasoning."
+            );
+        }
+
+        Ok(result)
+    }
 }
 
 /// Azure OpenAI client (extends OpenAI with Azure-specific config)
@@ -215,16 +461,16 @@ pub struct AzureOpenAiClient {
     deployment: String,
     api_version: String,
     client: reqwest::Client,
+    thinking_enabled: bool,
+    reasoning_effort: Option<String>,
+    max_tokens: u32,
+    temperature: f32,
+    top_p: Option<f32>,
+    thinking_state: Option<Arc<ThinkingStateManager>>,
 }
 
 impl AzureOpenAiClient {
-    /// Create new Azure OpenAI client
+    pub fn new(endpoint: &str, api_key: &str, deployment: &str, api_version: &str) -> Result<Self> {
-    pub fn new(
-        endpoint: &str,
-        api_key: &str,
-        deployment: &str,
-        api_version: &str,
-    ) -> Result<Self> {
         let client = create_http_client(Duration::from_secs(60))?;
 
         Ok(Self {
@@ -233,6 +479,12 @@ impl AzureOpenAiClient {
             deployment: deployment.to_string(),
             api_version: api_version.to_string(),
             client,
+            thinking_enabled: false,
+            reasoning_effort: None,
+            max_tokens: 500,
+            temperature: 0.7,
+            top_p: None,
+            thinking_state: None,
         })
     }
 
@@ -245,12 +497,15 @@ impl AzureOpenAiClient {
         let request = ChatCompletionRequest {
             model: self.deployment.clone(),
             messages,
-            max_tokens: Some(500),
+            max_tokens: Some(self.max_tokens),
-            temperature: Some(0.7),
+            temperature: Some(self.temperature),
+            top_p: self.top_p,
+            reasoning_effort: self.reasoning_effort.clone(),
             stream: false,
         };
 
-        let response = self.client
+        let response = self
+            .client
             .post(&url)
             .header("api-key", &self.api_key)
             .header("Content-Type", "application/json")
@@ -270,10 +525,12 @@ impl AzureOpenAiClient {
             .await
             .context("Failed to parse Azure OpenAI response")?;
 
-        result.choices
+        result
+            .choices
             .into_iter()
             .next()
             .map(|c| c.message.content.trim().to_string())
+            .filter(|s| !s.is_empty())
             .ok_or_else(|| anyhow::anyhow!("No response from Azure OpenAI"))
     }
 }
@@ -281,12 +538,10 @@ impl AzureOpenAiClient {
 #[async_trait]
 impl LlmProvider for AzureOpenAiClient {
     async fn generate(&self, prompt: &str) -> Result<String> {
-        let messages = vec![
+        let messages = vec![Message {
-            Message {
+            role: "user".to_string(),
-                role: "user".to_string(),
+            content: prompt.to_string(),
-                content: prompt.to_string(),
+        }];
-            },
-        ];
 
         self.chat_completion(messages).await
     }
@@ -310,7 +565,6 @@ impl LlmProvider for AzureOpenAiClient {
     }
 
     async fn is_available(&self) -> bool {
-        // Simple check - try to make a minimal request
         let url = format!(
             "{}/openai/deployments/{}/chat/completions?api-version={}",
             self.endpoint, self.deployment, self.api_version
@@ -324,10 +578,13 @@ impl LlmProvider for AzureOpenAiClient {
             }],
             max_tokens: Some(5),
             temperature: Some(0.0),
+            top_p: None,
+            reasoning_effort: None,
             stream: false,
         };
 
-        match self.client
+        match self
+            .client
             .post(&url)
             .header("api-key", &self.api_key)
             .json(&request)
@@ -343,3 +600,60 @@ impl LlmProvider for AzureOpenAiClient {
         "azure-openai"
     }
 }
+
+/// Available OpenAI models (including o-series with reasoning)
+pub const OPENAI_MODELS: &[&str] = &[
+    "o4-mini",
+    "o3",
+    "o3-mini",
+    "o1",
+    "o1-mini",
+    "o1-pro",
+    "gpt-4.1",
+    "gpt-4.1-mini",
+    "gpt-4.1-nano",
+    "gpt-4o",
+    "gpt-4o-mini",
+    "gpt-4-turbo",
+    "gpt-4",
+    "gpt-3.5-turbo",
+];
+
+pub fn is_valid_model(model: &str) -> bool {
+    OPENAI_MODELS.contains(&model)
+}
+
+fn is_reasoning_model(model: &str) -> bool {
+    model.starts_with("o")
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_model_validation_o_series() {
+        assert!(is_valid_model("o4-mini"));
+        assert!(is_valid_model("o3"));
+        assert!(is_valid_model("o1"));
+        assert!(is_valid_model("gpt-4o"));
+        assert!(is_valid_model("gpt-3.5-turbo"));
+        assert!(!is_valid_model("invalid-model"));
+    }
+
+    #[test]
+    fn test_stream_delta_reasoning_parsing() {
+        let json = r#"{"content":null,"reasoning_content":"Let me think..."}"#;
+        let delta: StreamDelta = serde_json::from_str(json).unwrap();
+        assert!(delta.content.is_none());
+        assert_eq!(delta.reasoning_content, Some("Let me think...".to_string()));
+    }
+
+    #[test]
+    fn test_stream_delta_content_parsing() {
+        let json = r#"{"content":"Hello","reasoning_content":null}"#;
+        let delta: StreamDelta = serde_json::from_str(json).unwrap();
+        assert_eq!(delta.content, Some("Hello".to_string()));
+        assert!(delta.reasoning_content.is_none());
+    }
+}

src/llm/openrouter.rs

@@ -1,5 +1,5 @@
-use super::{create_http_client, LlmProvider};
+use super::{LlmProvider, create_http_client};
-use anyhow::{bail, Context, Result};
+use anyhow::{Context, Result, bail};
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
 use std::time::Duration;
@@ -10,6 +10,9 @@ pub struct OpenRouterClient {
     api_key: String,
     model: String,
     client: reqwest::Client,
+    max_tokens: u32,
+    temperature: f32,
+    top_p: Option<f32>,
 }
 
 #[derive(Debug, Serialize)]
@@ -61,6 +64,9 @@ impl OpenRouterClient {
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            max_tokens: 500,
+            temperature: 0.7,
+            top_p: None,
         })
     }
 
@@ -73,6 +79,9 @@ impl OpenRouterClient {
             api_key: api_key.to_string(),
             model: model.to_string(),
             client,
+            max_tokens: 500,
+            temperature: 0.7,
+            top_p: None,
         })
     }
 
@@ -82,27 +91,71 @@ impl OpenRouterClient {
         Ok(self)
     }
 
-    /// Validate API key
+    pub fn with_max_tokens(mut self, max_tokens: u32) -> Self {
-    pub async fn validate_key(&self) -> Result<bool> {
+        self.max_tokens = max_tokens;
+        self
+    }
+
+    pub fn with_temperature(mut self, temperature: f32) -> Self {
+        self.temperature = temperature;
+        self
+    }
+
+    pub fn with_top_p(mut self, top_p: f32) -> Self {
+        self.top_p = Some(top_p);
+        self
+    }
+
+    /// List available models
+    pub async fn list_models(&self) -> Result<Vec<String>> {
         let url = format!("{}/models", self.base_url);
 
-        let response = self.client
+        let response = self
+            .client
             .get(&url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .header("HTTP-Referer", "https://quicommit.dev")
             .header("X-Title", "QuiCommit")
             .send()
             .await
-            .context("Failed to validate OpenRouter API key")?;
+            .context("Failed to list OpenRouter models")?;
 
-        if response.status().is_success() {
+        if !response.status().is_success() {
-            Ok(true)
-        } else if response.status().as_u16() == 401 {
-            Ok(false)
-        } else {
             let status = response.status();
             let text = response.text().await.unwrap_or_default();
-            bail!("OpenRouter API error: {} - {}", status, text)
+            bail!("OpenRouter API error: {} - {}", status, text);
+        }
+
+        #[derive(Deserialize)]
+        struct ModelsResponse {
+            data: Vec<Model>,
+        }
+
+        #[derive(Deserialize)]
+        struct Model {
+            id: String,
+        }
+
+        let result: ModelsResponse = response
+            .json()
+            .await
+            .context("Failed to parse OpenRouter response")?;
+
+        Ok(result.data.into_iter().map(|m| m.id).collect())
+    }
+
+    /// Validate API key
+    pub async fn validate_key(&self) -> Result<bool> {
+        match self.list_models().await {
+            Ok(_) => Ok(true),
+            Err(e) => {
+                let err_str = e.to_string();
+                if err_str.contains("401") || err_str.contains("Unauthorized") {
+                    Ok(false)
+                } else {
+                    Err(e)
+                }
+            }
         }
     }
 }
@@ -110,12 +163,10 @@ impl OpenRouterClient {
 #[async_trait]
 impl LlmProvider for OpenRouterClient {
     async fn generate(&self, prompt: &str) -> Result<String> {
-        let messages = vec![
+        let messages = vec![Message {
-            Message {
+            role: "user".to_string(),
-                role: "user".to_string(),
+            content: prompt.to_string(),
-                content: prompt.to_string(),
+        }];
-            },
-        ];
 
         self.chat_completion(messages).await
     }
@@ -154,12 +205,13 @@ impl OpenRouterClient {
         let request = ChatCompletionRequest {
             model: self.model.clone(),
             messages,
-            max_tokens: Some(500),
+            max_tokens: Some(self.max_tokens),
-            temperature: Some(0.7),
+            temperature: Some(self.temperature),
             stream: false,
         };
 
-        let response = self.client
+        let response = self
+            .client
             .post(&url)
             .header("Authorization", format!("Bearer {}", self.api_key))
             .header("Content-Type", "application/json")
@@ -177,7 +229,11 @@ impl OpenRouterClient {
 
             // Try to parse error
             if let Ok(error) = serde_json::from_str::<ErrorResponse>(&text) {
-                bail!("OpenRouter API error: {} ({})", error.error.message, error.error.error_type);
+                bail!(
+                    "OpenRouter API error: {} ({})",
+                    error.error.message,
+                    error.error.error_type
+                );
             }
 
             bail!("OpenRouter API error: {} - {}", status, text);
@@ -188,7 +244,8 @@ impl OpenRouterClient {
             .await
             .context("Failed to parse OpenRouter response")?;
 
-        result.choices
+        result
+            .choices
             .into_iter()
             .next()
             .map(|c| c.message.content.trim().to_string())
@@ -211,7 +268,7 @@ pub const OPENROUTER_MODELS: &[&str] = &[
 ];
 
 /// Check if a model name is valid
-pub fn is_valid_model(model: &str) -> bool {
+pub fn is_valid_model(_model: &str) -> bool {
     // Since OpenRouter supports many models, we'll allow any model name
     // but provide some popular ones as suggestions
     true

src/llm/thinking.rs

@@ -0,0 +1,151 @@
+use std::sync::Arc;
+use std::sync::atomic::{AtomicBool, Ordering};
+
+/// 统一的思考状态管理器，用于管理模型思考状态的显示与隐藏
+pub struct ThinkingStateManager {
+    is_thinking: AtomicBool,
+    on_start: Option<Box<dyn Fn() + Send + Sync>>,
+    on_end: Option<Box<dyn Fn() + Send + Sync>>,
+}
+
+impl ThinkingStateManager {
+    pub fn new() -> Self {
+        Self {
+            is_thinking: AtomicBool::new(false),
+            on_start: None,
+            on_end: None,
+        }
+    }
+
+    /// 设置思考开始回调
+    pub fn on_thinking_start<F: Fn() + Send + Sync + 'static>(mut self, callback: F) -> Self {
+        self.on_start = Some(Box::new(callback));
+        self
+    }
+
+    /// 设置思考结束回调
+    pub fn on_thinking_end<F: Fn() + Send + Sync + 'static>(mut self, callback: F) -> Self {
+        self.on_end = Some(Box::new(callback));
+        self
+    }
+
+    /// 开始思考状态
+    pub fn start_thinking(&self) {
+        if !self.is_thinking.load(Ordering::SeqCst) {
+            self.is_thinking.store(true, Ordering::SeqCst);
+            if let Some(ref cb) = self.on_start {
+                cb();
+            }
+        }
+    }
+
+    /// 结束思考状态
+    pub fn end_thinking(&self) {
+        if self.is_thinking.load(Ordering::SeqCst) {
+            self.is_thinking.store(false, Ordering::SeqCst);
+            if let Some(ref cb) = self.on_end {
+                cb();
+            }
+        }
+    }
+
+    /// 当前是否处于思考状态
+    pub fn is_thinking(&self) -> bool {
+        self.is_thinking.load(Ordering::SeqCst)
+    }
+}
+
+impl Default for ThinkingStateManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+/// 线程安全的思考状态管理器引用
+pub type SharedThinkingState = Arc<ThinkingStateManager>;
+
+/// 创建带有默认控制台输出的思考状态管理器
+/// 在思考开始时打印 "thinking..."，在思考结束时清除该标识
+pub fn create_console_thinking_state() -> SharedThinkingState {
+    Arc::new(
+        ThinkingStateManager::new()
+            .on_thinking_start(|| {
+                eprint!("\rthinking...");
+            })
+            .on_thinking_end(|| {
+                eprint!("\r          \r");
+            }),
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::sync::Mutex;
+
+    #[test]
+    fn test_thinking_state_transitions() {
+        let manager = ThinkingStateManager::new();
+        assert!(!manager.is_thinking());
+
+        manager.start_thinking();
+        assert!(manager.is_thinking());
+
+        manager.end_thinking();
+        assert!(!manager.is_thinking());
+    }
+
+    #[test]
+    fn test_thinking_idempotent_start() {
+        let manager = ThinkingStateManager::new();
+        manager.start_thinking();
+        manager.start_thinking(); // 重复调用不应触发回调两次
+        assert!(manager.is_thinking());
+    }
+
+    #[test]
+    fn test_thinking_idempotent_end() {
+        let manager = ThinkingStateManager::new();
+        manager.end_thinking(); // 未开始时结束不应触发问题
+        assert!(!manager.is_thinking());
+    }
+
+    #[test]
+    fn test_thinking_callbacks() {
+        let events: Arc<Mutex<Vec<String>>> = Arc::new(Mutex::new(Vec::new()));
+        let events_clone = events.clone();
+
+        let manager = ThinkingStateManager::new().on_thinking_start(move || {
+            events_clone.lock().unwrap().push("start".to_string());
+        });
+
+        let events_clone2 = events.clone();
+        let manager = manager.on_thinking_end(move || {
+            events_clone2.lock().unwrap().push("end".to_string());
+        });
+
+        manager.start_thinking();
+        manager.end_thinking();
+
+        let recorded = events.lock().unwrap();
+        assert_eq!(recorded.len(), 2);
+        assert_eq!(recorded[0], "start");
+        assert_eq!(recorded[1], "end");
+    }
+
+    #[test]
+    fn test_create_console_thinking_state() {
+        let state = create_console_thinking_state();
+        assert!(!state.is_thinking());
+        state.start_thinking();
+        assert!(state.is_thinking());
+        state.end_thinking();
+        assert!(!state.is_thinking());
+    }
+
+    #[test]
+    fn test_default() {
+        let manager = ThinkingStateManager::default();
+        assert!(!manager.is_thinking());
+    }
+}

src/main.rs

@@ -1,17 +1,13 @@
+#![allow(dead_code)]
+
 use anyhow::Result;
 use clap::{Parser, Subcommand};
+use std::path::PathBuf;
 use tracing::debug;
 
-mod commands;
+use quicommit::commands::{
-mod config;
-mod generator;
-mod git;
-mod llm;
-mod utils;
-
-use commands::{
     changelog::ChangelogCommand, commit::CommitCommand, config::ConfigCommand,
-    init::InitCommand, profile::ProfileCommand, tag::TagCommand,
+    credential::CredentialCommand, init::InitCommand, profile::ProfileCommand, tag::TagCommand,
 };
 
 /// QuiCommit - AI-powered Git assistant
@@ -67,13 +63,16 @@ enum Commands {
     /// Manage configuration settings
     #[command(alias = "cfg")]
     Config(ConfigCommand),
+
+    /// Git credential helper (hidden, invoked by git)
+    #[command(hide = true)]
+    Credential(CredentialCommand),
 }
 
 #[tokio::main]
 async fn main() -> Result<()> {
     let cli = Cli::parse();
 
-    // Initialize logging
     let log_level = match cli.verbose {
         0 => "warn",
         1 => "info",
@@ -88,13 +87,15 @@ async fn main() -> Result<()> {
 
     debug!("Starting quicommit v{}", env!("CARGO_PKG_VERSION"));
 
-    // Execute command
+    let config_path: Option<PathBuf> = cli.config.map(PathBuf::from);
+
     match cli.command {
-        Commands::Init(cmd) => cmd.execute().await,
+        Commands::Init(cmd) => cmd.execute(config_path).await,
-        Commands::Commit(cmd) => cmd.execute().await,
+        Commands::Commit(cmd) => cmd.execute(config_path).await,
-        Commands::Tag(cmd) => cmd.execute().await,
+        Commands::Tag(cmd) => cmd.execute(config_path).await,
-        Commands::Changelog(cmd) => cmd.execute().await,
+        Commands::Changelog(cmd) => cmd.execute(config_path).await,
-        Commands::Profile(cmd) => cmd.execute().await,
+        Commands::Profile(cmd) => cmd.execute(config_path).await,
-        Commands::Config(cmd) => cmd.execute().await,
+        Commands::Config(cmd) => cmd.execute(config_path).await,
+        Commands::Credential(cmd) => cmd.execute(config_path).await,
     }
 }

src/utils/crypto.rs

@@ -1,9 +1,9 @@
 use aes_gcm::{
-    aead::{Aead, KeyInit},
     Aes256Gcm, Nonce,
+    aead::{Aead, KeyInit},
 };
 use anyhow::{Context, Result};
-use base64::{engine::general_purpose::STANDARD as BASE64, Engine};
+use base64::{Engine, engine::general_purpose::STANDARD as BASE64};
 use rand::Rng;
 use std::fs;
 use std::path::Path;
@@ -20,8 +20,7 @@ pub fn encrypt(data: &[u8], password: &str) -> Result<String> {
     rand::thread_rng().fill(&mut nonce_bytes);
 
     let key = derive_key(password, &salt)?;
-    let cipher = Aes256Gcm::new_from_slice(&key)
+    let cipher = Aes256Gcm::new_from_slice(&key).context("Failed to create cipher")?;
-        .context("Failed to create cipher")?;
     let nonce = Nonce::from_slice(&nonce_bytes);
 
     let encrypted = cipher
@@ -39,7 +38,8 @@ pub fn encrypt(data: &[u8], password: &str) -> Result<String> {
 
 /// Decrypt data with password
 pub fn decrypt(encrypted_data: &str, password: &str) -> Result<Vec<u8>> {
-    let data = BASE64.decode(encrypted_data)
+    let data = BASE64
+        .decode(encrypted_data)
         .context("Invalid base64 encoding")?;
 
     if data.len() < SALT_LEN + NONCE_LEN {
@@ -51,8 +51,7 @@ pub fn decrypt(encrypted_data: &str, password: &str) -> Result<Vec<u8>> {
     let encrypted = &data[SALT_LEN + NONCE_LEN..];
 
     let key = derive_key(password, salt)?;
-    let cipher = Aes256Gcm::new_from_slice(&key)
+    let cipher = Aes256Gcm::new_from_slice(&key).context("Failed to create cipher")?;
-        .context("Failed to create cipher")?;
     let nonce = Nonce::from_slice(nonce_bytes);
 
     let decrypted = cipher
@@ -64,7 +63,7 @@ pub fn decrypt(encrypted_data: &str, password: &str) -> Result<Vec<u8>> {
 
 /// Derive key from password using simple method
 fn derive_key(password: &str, salt: &[u8]) -> Result<[u8; KEY_LEN]> {
-    use sha2::{Sha256, Digest};
+    use sha2::{Digest, Sha256};
 
     let mut hasher = Sha256::new();
     hasher.update(salt);

src/utils/editor.rs

@@ -9,14 +9,11 @@ pub fn edit_content(initial_content: &str) -> Result<String> {
 
 /// Edit file in user's default editor
 pub fn edit_file(path: &Path) -> Result<String> {
-    let content = fs::read_to_string(path)
+    let content = fs::read_to_string(path).unwrap_or_default();
-        .unwrap_or_default();
 
-    let edited = edit::edit(&content)
+    let edited = edit::edit(&content).context("Failed to open editor")?;
-        .context("Failed to open editor")?;
 
-    fs::write(path, &edited)
+    fs::write(path, &edited).with_context(|| format!("Failed to write file: {:?}", path))?;
-        .with_context(|| format!("Failed to write file: {:?}", path))?;
 
     Ok(edited)
 }
@@ -29,8 +26,7 @@ pub fn edit_temp(initial_content: &str, extension: &str) -> Result<String> {
         .context("Failed to create temp file")?;
 
     let path = temp_file.path();
-    fs::write(path, initial_content)
+    fs::write(path, initial_content).context("Failed to write temp file")?;
-        .context("Failed to write temp file")?;
 
     edit_file(path)
 }
@@ -41,8 +37,22 @@ pub fn get_editor() -> String {
         .or_else(|_| std::env::var("VISUAL"))
         .unwrap_or_else(|_| {
             if cfg!(target_os = "windows") {
+                if let Ok(_code) = which::which("code") {
+                    return "code --wait".to_string();
+                }
+                if let Ok(_notepad) = which::which("notepad") {
+                    return "notepad".to_string();
+                }
                 "notepad".to_string()
+            } else if cfg!(target_os = "macos") {
+                if which::which("code").is_ok() {
+                    return "code --wait".to_string();
+                }
+                "vi".to_string()
             } else {
+                if which::which("nano").is_ok() {
+                    return "nano".to_string();
+                }
                 "vi".to_string()
             }
         })
@@ -51,7 +61,6 @@ pub fn get_editor() -> String {
 /// Check if editor is available
 pub fn check_editor() -> Result<()> {
     let editor = get_editor();
-    which::which(&editor)
+    which::which(&editor).with_context(|| format!("Editor '{}' not found in PATH", editor))?;
-        .with_context(|| format!("Editor '{}' not found in PATH", editor))?;
     Ok(())
 }

src/utils/formatter.rs

@@ -1,4 +1,3 @@
-use chrono::{DateTime, Local, Utc};
 use regex::Regex;
 
 /// Format commit message with conventional commit format
@@ -12,7 +11,6 @@ pub fn format_conventional_commit(
 ) -> String {
     let mut message = String::new();
 
-    // Type and scope
     message.push_str(commit_type);
     if let Some(s) = scope {
         message.push_str(&format!("({})", s));
@@ -22,12 +20,10 @@ pub fn format_conventional_commit(
     }
     message.push_str(&format!(": {}", description));
 
-    // Body
     if let Some(b) = body {
         message.push_str(&format!("\n\n{}", b));
     }
 
-    // Footer
     if let Some(f) = footer {
         message.push_str(&format!("\n\n{}", f));
     }
@@ -46,26 +42,22 @@ pub fn format_commitlint_commit(
 ) -> String {
     let mut message = String::new();
 
-    // Header
     message.push_str(commit_type);
     if let Some(s) = scope {
         message.push_str(&format!("({})", s));
     }
     message.push_str(&format!(": {}", subject));
 
-    // References
     if let Some(refs) = references {
         for reference in refs {
             message.push_str(&format!(" #{}", reference));
         }
     }
 
-    // Body
     if let Some(b) = body {
         message.push_str(&format!("\n\n{}", b));
     }
 
-    // Footer
     if let Some(f) = footer {
         message.push_str(&format!("\n\n{}", f));
     }
@@ -73,38 +65,11 @@ pub fn format_commitlint_commit(
     message
 }
 
-/// Format date for commit message
-pub fn format_commit_date(date: &DateTime<Local>) -> String {
-    date.format("%Y-%m-%d %H:%M:%S").to_string()
-}
-
-/// Format date for changelog
-pub fn format_changelog_date(date: &DateTime<Utc>) -> String {
-    date.format("%Y-%m-%d").to_string()
-}
-
-/// Format tag name with version
-pub fn format_tag_name(version: &str, prefix: Option<&str>) -> String {
-    match prefix {
-        Some(p) => format!("{}{}", p, version),
-        None => version.to_string(),
-    }
-}
-
 /// Wrap text at specified width
 pub fn wrap_text(text: &str, width: usize) -> String {
     textwrap::fill(text, width)
 }
 
-/// Truncate text with ellipsis
-pub fn truncate(text: &str, max_len: usize) -> String {
-    if text.len() <= max_len {
-        text.to_string()
-    } else {
-        format!("{}...", &text[..max_len.saturating_sub(3)])
-    }
-}
-
 /// Clean commit message (remove comments, extra whitespace)
 pub fn clean_message(message: &str) -> String {
     let comment_regex = Regex::new(r"^#.*$").unwrap();
@@ -118,44 +83,6 @@ pub fn clean_message(message: &str) -> String {
         .to_string()
 }
 
-/// Format list as markdown bullet points
-pub fn format_markdown_list(items: &[String]) -> String {
-    items
-        .iter()
-        .map(|item| format!("- {}", item))
-        .collect::<Vec<_>>()
-        .join("\n")
-}
-
-/// Format changelog section
-pub fn format_changelog_section(
-    version: &str,
-    date: &str,
-    changes: &[(String, Vec<String>)],
-) -> String {
-    let mut section = format!("## [{}] - {}\n\n", version, date);
-    
-    for (category, items) in changes {
-        if !items.is_empty() {
-            section.push_str(&format!("### {}\n\n", category));
-            for item in items {
-                section.push_str(&format!("- {}\n", item));
-            }
-            section.push('\n');
-        }
-    }
-    
-    section
-}
-
-/// Format git config key
-pub fn format_git_config_key(section: &str, subsection: Option<&str>, key: &str) -> String {
-    match subsection {
-        Some(sub) => format!("{}.{}.{}", section, sub, key),
-        None => format!("{}.{}", section, key),
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -189,10 +116,4 @@ mod tests {
 
         assert!(msg.starts_with("feat!: change API response format"));
     }
-
-    #[test]
-    fn test_truncate() {
-        assert_eq!(truncate("hello", 10), "hello");
-        assert_eq!(truncate("hello world", 8), "hello...");
-    }
 }

src/utils/keyring.rs

@@ -0,0 +1,323 @@
+use anyhow::{Context, Result, bail};
+use std::env;
+
+const SERVICE_NAME: &str = "quicommit";
+const ENV_API_KEY: &str = "QUICOMMIT_API_KEY";
+
+const PAT_SERVICE_PREFIX: &str = "quicommit/pat";
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum KeyringStatus {
+    Available,
+    Unavailable,
+}
+
+pub struct KeyringManager {
+    status: KeyringStatus,
+}
+
+impl KeyringManager {
+    pub fn new() -> Self {
+        let status = Self::check_keyring_availability();
+        Self { status }
+    }
+
+    pub fn check_keyring_availability() -> KeyringStatus {
+        #[cfg(target_os = "windows")]
+        {
+            KeyringStatus::Available
+        }
+        #[cfg(target_os = "macos")]
+        {
+            KeyringStatus::Available
+        }
+        #[cfg(target_os = "linux")]
+        {
+            Self::check_linux_keyring()
+        }
+        #[cfg(not(any(target_os = "windows", target_os = "macos", target_os = "linux")))]
+        {
+            KeyringStatus::Unavailable
+        }
+    }
+
+    #[cfg(target_os = "linux")]
+    fn check_linux_keyring() -> KeyringStatus {
+        use std::path::Path;
+
+        let has_dbus = Path::new("/usr/bin/dbus-daemon").exists()
+            || Path::new("/bin/dbus-daemon").exists()
+            || env::var("DBUS_SESSION_BUS_ADDRESS").is_ok();
+
+        let has_keyring = Path::new("/usr/bin/gnome-keyring-daemon").exists()
+            || Path::new("/usr/bin/gnome-keyring").exists()
+            || Path::new("/usr/bin/kwalletd5").exists()
+            || Path::new("/usr/bin/kwalletd6").exists()
+            || env::var("SECRET_SERVICE").is_ok();
+
+        if has_dbus && has_keyring {
+            KeyringStatus::Available
+        } else {
+            KeyringStatus::Unavailable
+        }
+    }
+
+    pub fn status(&self) -> KeyringStatus {
+        self.status
+    }
+
+    pub fn is_available(&self) -> bool {
+        self.status == KeyringStatus::Available
+    }
+
+    pub fn store_api_key(&self, provider: &str, api_key: &str) -> Result<()> {
+        if !self.is_available() {
+            bail!("Keyring is not available on this system");
+        }
+
+        let entry = keyring::Entry::new(SERVICE_NAME, provider)
+            .context("Failed to create keyring entry")?;
+
+        entry
+            .set_password(api_key)
+            .context("Failed to store API key")?;
+
+        Ok(())
+    }
+
+    pub fn get_api_key(&self, provider: &str) -> Result<Option<String>> {
+        if let Ok(key) = env::var(ENV_API_KEY)
+            && !key.is_empty()
+        {
+            return Ok(Some(key));
+        }
+
+        if !self.is_available() {
+            return Ok(None);
+        }
+
+        let entry = keyring::Entry::new(SERVICE_NAME, provider)
+            .context("Failed to create keyring entry")?;
+
+        match entry.get_password() {
+            Ok(key) => Ok(Some(key)),
+            Err(keyring::Error::NoEntry) => Ok(None),
+            Err(e) => Err(e.into()),
+        }
+    }
+
+    pub fn delete_api_key(&self, provider: &str) -> Result<()> {
+        if !self.is_available() {
+            bail!("Keyring is not available on this system");
+        }
+
+        let entry = keyring::Entry::new(SERVICE_NAME, provider)
+            .context("Failed to create keyring entry")?;
+
+        entry
+            .delete_credential()
+            .context("Failed to delete API key")?;
+
+        Ok(())
+    }
+
+    pub fn has_api_key(&self, provider: &str) -> bool {
+        self.get_api_key(provider).unwrap_or(None).is_some()
+    }
+
+    fn make_pat_service_name(profile_name: &str) -> String {
+        format!("{}/{}", PAT_SERVICE_PREFIX, profile_name)
+    }
+
+    pub fn store_pat(
+        &self,
+        profile_name: &str,
+        user_email: &str,
+        service: &str,
+        token: &str,
+    ) -> Result<()> {
+        if !self.is_available() {
+            bail!("Keyring is not available on this system");
+        }
+
+        let keyring_service = Self::make_pat_service_name(profile_name);
+        let keyring_user = format!("{}:{}", user_email, service);
+
+        let entry = keyring::Entry::new(&keyring_service, &keyring_user)
+            .context("Failed to create keyring entry for PAT")?;
+
+        entry
+            .set_password(token)
+            .context("Failed to store PAT in keyring")?;
+
+        Ok(())
+    }
+
+    pub fn get_pat(
+        &self,
+        profile_name: &str,
+        user_email: &str,
+        service: &str,
+    ) -> Result<Option<String>> {
+        if !self.is_available() {
+            return Ok(None);
+        }
+
+        let keyring_service = Self::make_pat_service_name(profile_name);
+        let keyring_user = format!("{}:{}", user_email, service);
+
+        let entry = keyring::Entry::new(&keyring_service, &keyring_user)
+            .context("Failed to create keyring entry for PAT")?;
+
+        match entry.get_password() {
+            Ok(token) => Ok(Some(token)),
+            Err(keyring::Error::NoEntry) => Ok(None),
+            Err(e) => Err(e.into()),
+        }
+    }
+
+    pub fn delete_pat(&self, profile_name: &str, user_email: &str, service: &str) -> Result<()> {
+        if !self.is_available() {
+            bail!("Keyring is not available on this system");
+        }
+
+        let keyring_service = Self::make_pat_service_name(profile_name);
+        let keyring_user = format!("{}:{}", user_email, service);
+
+        let entry = keyring::Entry::new(&keyring_service, &keyring_user)
+            .context("Failed to create keyring entry for PAT")?;
+
+        entry
+            .delete_credential()
+            .context("Failed to delete PAT from keyring")?;
+
+        Ok(())
+    }
+
+    pub fn has_pat(&self, profile_name: &str, user_email: &str, service: &str) -> bool {
+        self.get_pat(profile_name, user_email, service)
+            .unwrap_or(None)
+            .is_some()
+    }
+
+    pub fn delete_all_pats_for_profile(
+        &self,
+        profile_name: &str,
+        user_email: &str,
+        services: &[String],
+    ) -> Result<()> {
+        for service in services {
+            let _ = self.delete_pat(profile_name, user_email, service);
+        }
+        Ok(())
+    }
+
+    pub fn get_status_message(&self) -> String {
+        match self.status {
+            KeyringStatus::Available => {
+                #[cfg(target_os = "windows")]
+                {
+                    "Windows Credential Manager is available".to_string()
+                }
+                #[cfg(target_os = "macos")]
+                {
+                    "macOS Keychain is available".to_string()
+                }
+                #[cfg(target_os = "linux")]
+                {
+                    "Linux secret service is available".to_string()
+                }
+                #[cfg(not(any(target_os = "windows", target_os = "macos", target_os = "linux")))]
+                {
+                    "Keyring is available".to_string()
+                }
+            }
+            KeyringStatus::Unavailable => {
+                "Keyring is not available. Set QUICOMMIT_API_KEY environment variable.".to_string()
+            }
+        }
+    }
+}
+
+impl Default for KeyringManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+pub fn get_default_base_url(provider: &str) -> &'static str {
+    match provider {
+        "openai" => "https://api.openai.com/v1",
+        "anthropic" => "https://api.anthropic.com/v1",
+        "kimi" => "https://api.moonshot.cn/v1",
+        "deepseek" => "https://api.deepseek.com/v1",
+        "openrouter" => "https://openrouter.ai/api/v1",
+        "ollama" => "http://localhost:11434",
+        _ => "",
+    }
+}
+
+pub fn get_default_model(provider: &str) -> &'static str {
+    match provider {
+        "openai" => "gpt-4",
+        "anthropic" => "claude-3-sonnet-20240229",
+        "kimi" => "kimi-k2.6",
+        "deepseek" => "deepseek-v4-flash",
+        "openrouter" => "openai/gpt-3.5-turbo",
+        "ollama" => "llama2",
+        _ => "",
+    }
+}
+
+pub fn get_supported_providers() -> &'static [&'static str] {
+    &[
+        "ollama",
+        "openai",
+        "anthropic",
+        "kimi",
+        "deepseek",
+        "openrouter",
+    ]
+}
+
+pub fn provider_needs_api_key(provider: &str) -> bool {
+    provider != "ollama"
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_get_default_base_url() {
+        assert_eq!(get_default_base_url("openai"), "https://api.openai.com/v1");
+        assert_eq!(
+            get_default_base_url("anthropic"),
+            "https://api.anthropic.com/v1"
+        );
+        assert_eq!(get_default_base_url("kimi"), "https://api.moonshot.cn/v1");
+        assert_eq!(
+            get_default_base_url("deepseek"),
+            "https://api.deepseek.com/v1"
+        );
+        assert_eq!(
+            get_default_base_url("openrouter"),
+            "https://openrouter.ai/api/v1"
+        );
+        assert_eq!(get_default_base_url("ollama"), "http://localhost:11434");
+    }
+
+    #[test]
+    fn test_get_default_model() {
+        assert_eq!(get_default_model("openai"), "gpt-4");
+        assert_eq!(get_default_model("anthropic"), "claude-3-sonnet-20240229");
+        assert_eq!(get_default_model("ollama"), "llama2");
+    }
+
+    #[test]
+    fn test_provider_needs_api_key() {
+        assert!(provider_needs_api_key("openai"));
+        assert!(provider_needs_api_key("anthropic"));
+        assert!(!provider_needs_api_key("ollama"));
+    }
+}

src/utils/mod.rs

@@ -1,6 +1,7 @@
 pub mod crypto;
 pub mod editor;
 pub mod formatter;
+pub mod keyring;
 pub mod validators;
 
 use anyhow::{Context, Result};

src/utils/validators.rs

@@ -1,4 +1,4 @@
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 use lazy_static::lazy_static;
 use regex::Regex;
 
@@ -58,11 +58,6 @@ lazy_static! {
         r"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"
     ).unwrap();
 
-    /// Regex for SSH key validation (basic)
-    static ref SSH_KEY_REGEX: Regex = Regex::new(
-        r"^(ssh-rsa|ssh-ed25519|ecdsa-sha2-nistp256|ecdsa-sha2-nistp384|ecdsa-sha2-nistp521)\s+[A-Za-z0-9+/]+={0,2}\s+.*$"
-    ).unwrap();
-
     /// Regex for GPG key ID validation
     static ref GPG_KEY_ID_REGEX: Regex = Regex::new(
         r"^[A-F0-9]{16,40}$"
@@ -81,7 +76,6 @@ pub fn validate_conventional_commit(message: &str) -> Result<()> {
         );
     }
 
-    // Check description length (max 100 chars for first line)
     if first_line.len() > 100 {
         bail!("Commit subject too long (max 100 characters)");
     }
@@ -93,7 +87,6 @@ pub fn validate_conventional_commit(message: &str) -> Result<()> {
 pub fn validate_commitlint_commit(message: &str) -> Result<()> {
     let first_line = message.lines().next().unwrap_or("");
 
-    // Commitlint is more lenient but still requires type prefix
     let parts: Vec<&str> = first_line.splitn(2, ':').collect();
     if parts.len() != 2 {
         bail!("Invalid commit format. Expected: <type>[optional scope]: <subject>");
@@ -102,7 +95,6 @@ pub fn validate_commitlint_commit(message: &str) -> Result<()> {
     let type_part = parts[0];
     let subject = parts[1].trim();
 
-    // Extract type (handle scope and breaking indicator)
     let commit_type = type_part
         .split('(')
         .next()
@@ -117,7 +109,6 @@ pub fn validate_commitlint_commit(message: &str) -> Result<()> {
         );
     }
 
-    // Validate subject
     if subject.is_empty() {
         bail!("Commit subject cannot be empty");
     }
@@ -130,12 +121,15 @@ pub fn validate_commitlint_commit(message: &str) -> Result<()> {
         bail!("Commit subject too long (max 100 characters)");
     }
 
-    // Subject should not start with uppercase
+    if subject
-    if subject.chars().next().map(|c| c.is_uppercase()).unwrap_or(false) {
+        .chars()
+        .next()
+        .map(|c| c.is_uppercase())
+        .unwrap_or(false)
+    {
         bail!("Commit subject should not start with uppercase letter");
     }
 
-    // Subject should not end with period
     if subject.ends_with('.') {
         bail!("Commit subject should not end with a period");
     }
@@ -179,15 +173,6 @@ pub fn validate_email(email: &str) -> Result<()> {
     Ok(())
 }
 
-/// Validate SSH key format
-pub fn validate_ssh_key(key: &str) -> Result<()> {
-    if !SSH_KEY_REGEX.is_match(key.trim()) {
-        bail!("Invalid SSH public key format");
-    }
-    
-    Ok(())
-}
-
 /// Validate GPG key ID
 pub fn validate_gpg_key_id(key_id: &str) -> Result<()> {
     if !GPG_KEY_ID_REGEX.is_match(key_id) {
@@ -207,7 +192,10 @@ pub fn validate_profile_name(name: &str) -> Result<()> {
         bail!("Profile name too long (max 50 characters)");
     }
 
-    if !name.chars().all(|c| c.is_alphanumeric() || c == '-' || c == '_') {
+    if !name
+        .chars()
+        .all(|c| c.is_alphanumeric() || c == '-' || c == '_')
+    {
         bail!("Profile name can only contain letters, numbers, hyphens, and underscores");
     }
 

tests/config_export_import_tests.rs

@@ -0,0 +1,417 @@
+use assert_cmd::cargo::cargo_bin_cmd;
+use predicates::prelude::*;
+use std::fs;
+use std::path::PathBuf;
+use tempfile::TempDir;
+
+fn init_quicommit(config_path: &PathBuf) {
+    let mut cmd = cargo_bin_cmd!("quicommit");
+    cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+    cmd.assert().success();
+}
+
+mod config_export {
+    use super::*;
+
+    #[test]
+    fn test_export_to_stdout() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+        init_quicommit(&config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path.to_str().unwrap(),
+        ]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("version"))
+            .stdout(predicate::str::contains("[llm]"));
+    }
+
+    #[test]
+    fn test_export_to_file() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+        let export_path = temp_dir.path().join("exported.toml");
+        init_quicommit(&config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path.to_str().unwrap(),
+            "--output",
+            export_path.to_str().unwrap(),
+            "--password",
+            "",
+        ]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Configuration exported"));
+
+        assert!(export_path.exists(), "Export file should be created");
+
+        let content = fs::read_to_string(&export_path).unwrap();
+        assert!(content.contains("version"), "Export should contain version");
+        assert!(
+            content.contains("[llm]"),
+            "Export should contain LLM config"
+        );
+    }
+
+    #[test]
+    fn test_export_encrypted() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+        let export_path = temp_dir.path().join("encrypted.toml");
+        init_quicommit(&config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path.to_str().unwrap(),
+            "--output",
+            export_path.to_str().unwrap(),
+            "--password",
+            "test_password_123",
+        ]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("encrypted and exported"));
+
+        assert!(export_path.exists(), "Export file should be created");
+
+        let content = fs::read_to_string(&export_path).unwrap();
+        assert!(
+            content.starts_with("ENCRYPTED:"),
+            "Encrypted file should start with ENCRYPTED:"
+        );
+        assert!(
+            !content.contains("[llm]"),
+            "Encrypted content should not be readable"
+        );
+    }
+}
+
+mod config_import {
+    use super::*;
+
+    #[test]
+    fn test_import_plain_config() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+        let import_path = temp_dir.path().join("import.toml");
+
+        let plain_config = r#"
+version = "1"
+
+[llm]
+provider = "openai"
+model = "gpt-4"
+max_tokens = 1000
+temperature = 0.7
+timeout = 60
+api_key_storage = "keyring"
+
+[commit]
+format = "conventional"
+auto_generate = true
+
+[tag]
+version_prefix = "v"
+auto_generate = true
+
+[changelog]
+path = "CHANGELOG.md"
+auto_generate = true
+
+[language]
+output_language = "en"
+keep_types_english = true
+keep_changelog_types_english = true
+"#;
+        fs::write(&import_path, plain_config).unwrap();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "import",
+            "--config",
+            config_path.to_str().unwrap(),
+            "--file",
+            import_path.to_str().unwrap(),
+        ]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Configuration imported"));
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "get",
+            "llm.provider",
+            "--config",
+            config_path.to_str().unwrap(),
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("openai"));
+    }
+
+    #[test]
+    fn test_import_encrypted_config() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path1 = temp_dir.path().join("config1.toml");
+        let config_path2 = temp_dir.path().join("config2.toml");
+        let export_path = temp_dir.path().join("encrypted.toml");
+
+        init_quicommit(&config_path1);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "set",
+            "llm.provider",
+            "anthropic",
+            "--config",
+            config_path1.to_str().unwrap(),
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path1.to_str().unwrap(),
+            "--output",
+            export_path.to_str().unwrap(),
+            "--password",
+            "secure_password",
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "import",
+            "--config",
+            config_path2.to_str().unwrap(),
+            "--file",
+            export_path.to_str().unwrap(),
+            "--password",
+            "secure_password",
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Configuration imported"));
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "get",
+            "llm.provider",
+            "--config",
+            config_path2.to_str().unwrap(),
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("anthropic"));
+    }
+
+    #[test]
+    fn test_import_encrypted_wrong_password() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+        let export_path = temp_dir.path().join("encrypted.toml");
+
+        init_quicommit(&config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path.to_str().unwrap(),
+            "--output",
+            export_path.to_str().unwrap(),
+            "--password",
+            "correct_password",
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "import",
+            "--config",
+            config_path.to_str().unwrap(),
+            "--file",
+            export_path.to_str().unwrap(),
+            "--password",
+            "wrong_password",
+        ]);
+        cmd.assert()
+            .failure()
+            .stderr(predicate::str::contains("Failed to decrypt"));
+    }
+}
+
+mod config_export_import_roundtrip {
+    use super::*;
+
+    #[test]
+    fn test_roundtrip_plain() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path1 = temp_dir.path().join("config1.toml");
+        let config_path2 = temp_dir.path().join("config2.toml");
+        let export_path = temp_dir.path().join("export.toml");
+
+        init_quicommit(&config_path1);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "set",
+            "llm.model",
+            "gpt-4-turbo",
+            "--config",
+            config_path1.to_str().unwrap(),
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path1.to_str().unwrap(),
+            "--output",
+            export_path.to_str().unwrap(),
+            "--password",
+            "",
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "import",
+            "--config",
+            config_path2.to_str().unwrap(),
+            "--file",
+            export_path.to_str().unwrap(),
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "get",
+            "llm.model",
+            "--config",
+            config_path2.to_str().unwrap(),
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("gpt-4-turbo"));
+    }
+
+    #[test]
+    fn test_roundtrip_encrypted() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path1 = temp_dir.path().join("config1.toml");
+        let config_path2 = temp_dir.path().join("config2.toml");
+        let export_path = temp_dir.path().join("encrypted.toml");
+        let password = "my_secure_password_123";
+
+        init_quicommit(&config_path1);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "set",
+            "llm.provider",
+            "deepseek",
+            "--config",
+            config_path1.to_str().unwrap(),
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "set",
+            "llm.model",
+            "deepseek-chat",
+            "--config",
+            config_path1.to_str().unwrap(),
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "export",
+            "--config",
+            config_path1.to_str().unwrap(),
+            "--output",
+            export_path.to_str().unwrap(),
+            "--password",
+            password,
+        ]);
+        cmd.assert().success();
+
+        let exported_content = fs::read_to_string(&export_path).unwrap();
+        assert!(exported_content.starts_with("ENCRYPTED:"));
+        assert!(!exported_content.contains("deepseek"));
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "import",
+            "--config",
+            config_path2.to_str().unwrap(),
+            "--file",
+            export_path.to_str().unwrap(),
+            "--password",
+            password,
+        ]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "get",
+            "llm.provider",
+            "--config",
+            config_path2.to_str().unwrap(),
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("deepseek"));
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "get",
+            "llm.model",
+            "--config",
+            config_path2.to_str().unwrap(),
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("deepseek-chat"));
+    }
+}

tests/gitignore_tests.rs

@@ -0,0 +1,266 @@
+use quicommit::git::GitRepo;
+use std::fs;
+use std::path::Path;
+use std::process::Command;
+use tempfile::TempDir;
+
+// ---------------------------------------------------------------------------
+// Helpers
+// ---------------------------------------------------------------------------
+
+/// Run a git command in the given directory, returning stdout as a String.
+/// Panics if the command fails.
+fn git(dir: &Path, args: &[&str]) -> String {
+    let output = Command::new("git")
+        .args(args)
+        .current_dir(dir)
+        .output()
+        .expect("Failed to execute git command");
+    if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        panic!("git {:?} failed in {:?}: {}", args, dir, stderr);
+    }
+    String::from_utf8_lossy(&output.stdout).to_string()
+}
+
+/// Initialize a new git repo in the given directory and configure a local
+/// user identity so commits can be created.
+fn init_repo(dir: &Path) {
+    git(dir, &["init"]);
+    git(dir, &["config", "user.name", "Test User"]);
+    git(dir, &["config", "user.email", "test@example.com"]);
+    // Disable commit signing in case the global config enables it.
+    git(dir, &["config", "commit.gpgsign", "false"]);
+}
+
+/// Write a file with the given content, creating parent directories as needed.
+fn write_file(dir: &Path, rel_path: &str, content: &str) {
+    let file_path = dir.join(rel_path);
+    if let Some(parent) = file_path.parent() {
+        fs::create_dir_all(parent).expect("Failed to create parent directories");
+    }
+    fs::write(&file_path, content).expect("Failed to write file");
+}
+
+/// Get the list of files in the index as a String (one path per line).
+fn ls_files(dir: &Path) -> String {
+    git(dir, &["ls-files"])
+}
+
+// ---------------------------------------------------------------------------
+// Tests for is_path_ignored
+// ---------------------------------------------------------------------------
+
+#[test]
+fn test_is_path_ignored_with_ignored_path() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    write_file(repo_path, ".gitignore", "__pycache__/\n");
+    write_file(repo_path, "__pycache__/foo.pyc", "bytecode");
+    write_file(repo_path, "subdir/__pycache__/bar.pyc", "more bytecode");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+
+    // Top-level ignored file
+    assert!(
+        repo.is_path_ignored("__pycache__/foo.pyc").unwrap(),
+        "__pycache__/foo.pyc should be ignored"
+    );
+
+    // Nested ignored file under a subdirectory
+    assert!(
+        repo.is_path_ignored("subdir/__pycache__/bar.pyc").unwrap(),
+        "subdir/__pycache__/bar.pyc should be ignored"
+    );
+}
+
+#[test]
+fn test_is_path_ignored_with_non_ignored_path() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    write_file(repo_path, ".gitignore", "__pycache__/\n");
+    write_file(repo_path, "src/main.rs", "fn main() {}");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+
+    assert!(
+        !repo.is_path_ignored("src/main.rs").unwrap(),
+        "src/main.rs should not be ignored"
+    );
+}
+
+// ---------------------------------------------------------------------------
+// Tests for stage_all
+// ---------------------------------------------------------------------------
+
+#[test]
+fn test_stage_all_removes_ignored_tracked_files() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    // Create and commit __pycache__/foo.pyc so it becomes a tracked file.
+    write_file(repo_path, "__pycache__/foo.pyc", "original bytecode");
+    git(repo_path, &["add", "__pycache__/foo.pyc"]);
+    git(repo_path, &["commit", "-m", "initial commit"]);
+
+    // Add a .gitignore that now ignores __pycache__/.
+    write_file(repo_path, ".gitignore", "__pycache__/\n");
+
+    // Modify the tracked file so the working tree has unstaged changes.
+    write_file(repo_path, "__pycache__/foo.pyc", "modified bytecode");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+    let removed = repo.stage_all().expect("stage_all should succeed");
+
+    assert!(
+        removed.iter().any(|f| f == "__pycache__/foo.pyc"),
+        "stage_all should return __pycache__/foo.pyc in removed list, got: {:?}",
+        removed
+    );
+
+    // Verify the file is no longer in the index.
+    let files = ls_files(repo_path);
+    assert!(
+        !files.lines().any(|l| l == "__pycache__/foo.pyc"),
+        "__pycache__/foo.pyc should no longer be in the index, got: {}",
+        files
+    );
+}
+
+#[test]
+fn test_stage_all_no_ignored_files_returns_empty() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    write_file(repo_path, ".gitignore", "*.log\n");
+    write_file(repo_path, "src/main.rs", "fn main() {}");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+    let removed = repo.stage_all().expect("stage_all should succeed");
+
+    assert!(
+        removed.is_empty(),
+        "stage_all should return empty Vec when no ignored files are tracked, got: {:?}",
+        removed
+    );
+
+    // Verify src/main.rs was staged.
+    let files = ls_files(repo_path);
+    assert!(
+        files.lines().any(|l| l == "src/main.rs"),
+        "src/main.rs should be in the index, got: {}",
+        files
+    );
+}
+
+// ---------------------------------------------------------------------------
+// Tests for stage_files
+// ---------------------------------------------------------------------------
+
+#[test]
+fn test_stage_files_skips_ignored_paths() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    write_file(repo_path, ".gitignore", "__pycache__/\n");
+    write_file(repo_path, "__pycache__/foo.pyc", "bytecode");
+    write_file(repo_path, "src/main.rs", "fn main() {}");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+    let skipped = repo
+        .stage_files(&["__pycache__/foo.pyc", "src/main.rs"])
+        .expect("stage_files should succeed");
+
+    assert!(
+        skipped.iter().any(|f| f == "__pycache__/foo.pyc"),
+        "skipped list should contain __pycache__/foo.pyc, got: {:?}",
+        skipped
+    );
+    assert!(
+        !skipped.iter().any(|f| f == "src/main.rs"),
+        "skipped list should not contain src/main.rs, got: {:?}",
+        skipped
+    );
+
+    let files = ls_files(repo_path);
+    assert!(
+        files.lines().any(|l| l == "src/main.rs"),
+        "src/main.rs should be staged, got: {}",
+        files
+    );
+    assert!(
+        !files.lines().any(|l| l == "__pycache__/foo.pyc"),
+        "__pycache__/foo.pyc should not be staged, got: {}",
+        files
+    );
+}
+
+#[test]
+fn test_stage_files_all_paths_ignored() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    write_file(repo_path, ".gitignore", "__pycache__/\n");
+    write_file(repo_path, "__pycache__/foo.pyc", "bytecode");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+    let skipped = repo
+        .stage_files(&["__pycache__/foo.pyc"])
+        .expect("stage_files should succeed");
+
+    assert!(
+        skipped.iter().any(|f| f == "__pycache__/foo.pyc"),
+        "skipped list should contain __pycache__/foo.pyc, got: {:?}",
+        skipped
+    );
+
+    // Verify the index remains empty (the file was not staged).
+    let files = ls_files(repo_path);
+    assert!(
+        files.trim().is_empty(),
+        "index should be empty, got: {}",
+        files
+    );
+}
+
+#[test]
+fn test_stage_files_normal_paths_unchanged_behavior() {
+    let temp_dir = TempDir::new().unwrap();
+    let repo_path = temp_dir.path();
+    init_repo(repo_path);
+
+    // No .gitignore (or one that does not match these paths).
+    write_file(repo_path, "src/main.rs", "fn main() {}");
+    write_file(repo_path, "src/lib.rs", "pub fn lib() {}");
+
+    let repo = GitRepo::open(repo_path).expect("Failed to open repo");
+    let skipped = repo
+        .stage_files(&["src/main.rs", "src/lib.rs"])
+        .expect("stage_files should succeed");
+
+    assert!(
+        skipped.is_empty(),
+        "skipped list should be empty, got: {:?}",
+        skipped
+    );
+
+    let files = ls_files(repo_path);
+    assert!(
+        files.lines().any(|l| l == "src/main.rs"),
+        "src/main.rs should be staged, got: {}",
+        files
+    );
+    assert!(
+        files.lines().any(|l| l == "src/lib.rs"),
+        "src/lib.rs should be staged, got: {}",
+        files
+    );
+}

tests/integration_tests.rs

@@ -1,64 +1,831 @@
-use assert_cmd::Command;
+use assert_cmd::cargo::cargo_bin_cmd;
 use predicates::prelude::*;
 use std::fs;
+use std::path::PathBuf;
 use tempfile::TempDir;
 
-#[test]
+fn create_git_repo(dir: &PathBuf) -> std::process::Output {
-fn test_cli_help() {
+    std::process::Command::new("git")
-    let mut cmd = Command::cargo_bin("quicommit").unwrap();
+        .args(&["init"])
-    cmd.arg("--help");
+        .current_dir(dir)
-    cmd.assert()
+        .output()
-        .success()
+        .expect("Failed to init git repo")
-        .stdout(predicate::str::contains("QuiCommit"));
 }
 
-#[test]
+fn configure_git_user(dir: &PathBuf) {
-fn test_version() {
+    std::process::Command::new("git")
-    let mut cmd = Command::cargo_bin("quicommit").unwrap();
+        .args(&["config", "user.name", "Test User"])
-    cmd.arg("--version");
+        .current_dir(dir)
-    cmd.assert()
+        .output()
-        .success()
+        .expect("Failed to configure git user name");
-        .stdout(predicate::str::contains("0.1.0"));
+
+    std::process::Command::new("git")
+        .args(&["config", "user.email", "test@example.com"])
+        .current_dir(dir)
+        .output()
+        .expect("Failed to configure git user email");
 }
 
-#[test]
+fn create_test_file(dir: &PathBuf, name: &str, content: &str) {
-fn test_config_show() {
+    let file_path = dir.join(name);
-    let temp_dir = TempDir::new().unwrap();
+    fs::write(&file_path, content).expect("Failed to create test file");
-    let config_dir = temp_dir.path().join("config");
+}
-    fs::create_dir(&config_dir).unwrap();
 
-    let mut cmd = Command::cargo_bin("quicommit").unwrap();
+fn stage_file(dir: &PathBuf, name: &str) {
-    cmd.env("QUICOMMIT_CONFIG", config_dir.join("config.toml"))
+    std::process::Command::new("git")
-        .arg("config")
+        .args(&["add", name])
-        .arg("show");
+        .current_dir(dir)
+        .output()
+        .expect("Failed to stage file");
+}
 
+fn create_commit(dir: &PathBuf, message: &str) {
+    std::process::Command::new("git")
+        .args(&["commit", "-m", message])
+        .current_dir(dir)
+        .output()
+        .expect("Failed to create commit");
+}
+
+fn setup_git_repo(dir: &PathBuf) {
+    create_git_repo(dir);
+    configure_git_user(dir);
+}
+
+fn setup_test_repo_with_file(dir: &PathBuf, file_name: &str, file_content: &str) {
+    setup_git_repo(dir);
+    create_test_file(dir, file_name, file_content);
+    stage_file(dir, file_name);
+}
+
+fn init_quicommit(dir: &PathBuf, config_path: &PathBuf) {
+    let mut cmd = cargo_bin_cmd!("quicommit");
+    cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()])
+        .current_dir(dir);
     cmd.assert().success();
 }
 
-#[test]
+mod cli_basic {
-fn test_profile_list_empty() {
+    use super::*;
-    let temp_dir = TempDir::new().unwrap();
 
-    let mut cmd = Command::cargo_bin("quicommit").unwrap();
+    #[test]
-    cmd.env("QUICOMMIT_CONFIG", temp_dir.path().join("config.toml"))
+    fn test_help() {
-        .arg("profile")
+        let mut cmd = cargo_bin_cmd!("quicommit");
-        .arg("list");
+        cmd.arg("--help");
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("QuiCommit"))
+            .stdout(predicate::str::contains("AI-powered Git assistant"))
+            .stdout(predicate::str::contains("Usage:"))
+            .stdout(predicate::str::contains("Commands:"))
+            .stdout(predicate::str::contains("Options:"));
+    }
 
-    cmd.assert()
+    #[test]
-        .success()
+    fn test_version() {
-        .stdout(predicate::str::contains("No profiles configured"));
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.arg("--version");
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("quicommit"));
+    }
+
+    #[test]
+    fn test_no_args_shows_help() {
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.assert()
+            .failure()
+            .stderr(predicate::str::contains("Usage:"));
+    }
+
+    #[test]
+    fn test_verbose_flag() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        let config_path = repo_path.join("config.toml");
+        create_git_repo(&repo_path);
+        configure_git_user(&repo_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "-vv",
+            "init",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert().success();
+    }
 }
 
-#[test]
+mod init_command {
-fn test_init_quick() {
+    use super::*;
-    let temp_dir = TempDir::new().unwrap();
 
-    let mut cmd = Command::cargo_bin("quicommit").unwrap();
+    #[test]
-    cmd.env("QUICOMMIT_CONFIG", temp_dir.path().join("config.toml"))
+    fn test_init_quick() {
-        .arg("init")
+        let temp_dir = TempDir::new().unwrap();
-        .arg("--yes");
+        let config_path = temp_dir.path().join("config.toml");
 
-    cmd.assert()
+        let mut cmd = cargo_bin_cmd!("quicommit");
-        .success()
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
-        .stdout(predicate::str::contains("initialized successfully"));
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("initialized successfully"));
+    }
+
+    #[test]
+    fn test_init_creates_config_file() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert().success();
+
+        assert!(config_path.exists(), "Config file should be created");
+    }
+
+    #[test]
+    fn test_init_in_git_repo() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        create_git_repo(&repo_path);
+        configure_git_user(&repo_path);
+
+        let config_path = repo_path.join("test_config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()])
+            .current_dir(&repo_path);
+
+        cmd.assert().success();
+    }
+
+    #[test]
+    fn test_init_reset() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "init",
+            "--yes",
+            "--reset",
+            "--config",
+            config_path.to_str().unwrap(),
+        ]);
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("initialized successfully"));
+    }
+}
+
+mod profile_command {
+    use super::*;
+
+    #[test]
+    fn test_profile_list_empty() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["profile", "list", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("No profiles"));
+    }
+
+    #[test]
+    fn test_profile_list_with_profile() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["profile", "list", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("default"));
+    }
+}
+
+mod config_command {
+    use super::*;
+
+    #[test]
+    fn test_config_show() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["config", "show", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Configuration"));
+    }
+
+    #[test]
+    fn test_config_path() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["config", "path", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("config.toml"));
+    }
+}
+
+mod commit_command {
+    use super::*;
+
+    #[test]
+    fn test_commit_no_repo() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(temp_dir.path());
+
+        cmd.assert()
+            .failure()
+            .stderr(predicate::str::contains("git").or(predicate::str::contains("repository")));
+    }
+
+    #[test]
+    fn test_commit_no_changes() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_git_repo(&repo_path);
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--manual",
+            "-m",
+            "test: empty",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Dry run"));
+    }
+
+    #[test]
+    fn test_commit_with_staged_changes() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "test.txt", "Hello, World!");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--manual",
+            "-m",
+            "test: add test file",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Dry run"));
+    }
+
+    #[test]
+    fn test_commit_date_mode() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "daily.txt", "Daily update");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--date",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Dry run"));
+    }
+
+    #[test]
+    fn test_commit_with_think_flag() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "test.txt", "Hello, World!");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--think",
+            "--manual",
+            "-m",
+            "test: think flag",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert().success();
+    }
+}
+
+mod tag_command {
+    use super::*;
+
+    #[test]
+    fn test_tag_no_repo() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "tag",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(temp_dir.path());
+
+        cmd.assert()
+            .failure()
+            .stderr(predicate::str::contains("git").or(predicate::str::contains("repository")));
+    }
+
+    #[test]
+    fn test_tag_list_empty() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_git_repo(&repo_path);
+
+        create_test_file(&repo_path, "test.txt", "content");
+        stage_file(&repo_path, "test.txt");
+        create_commit(&repo_path, "feat: initial commit");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "tag",
+            "--name",
+            "v0.1.0",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("v0.1.0"));
+    }
+
+    #[test]
+    fn test_tag_with_think_flag() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_git_repo(&repo_path);
+
+        create_test_file(&repo_path, "test.txt", "content");
+        stage_file(&repo_path, "test.txt");
+        create_commit(&repo_path, "feat: initial commit");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "tag",
+            "--think",
+            "--name",
+            "v0.2.0",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert().success();
+    }
+}
+
+mod changelog_command {
+    use super::*;
+
+    #[test]
+    fn test_changelog_init() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_git_repo(&repo_path);
+
+        let config_path = repo_path.join("config.toml");
+        let changelog_path = repo_path.join("CHANGELOG.md");
+
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "changelog",
+            "--init",
+            "--output",
+            changelog_path.to_str().unwrap(),
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert().success();
+
+        assert!(changelog_path.exists(), "Changelog file should be created");
+    }
+
+    #[test]
+    fn test_changelog_dry_run() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_git_repo(&repo_path);
+
+        create_test_file(&repo_path, "test.txt", "content");
+        stage_file(&repo_path, "test.txt");
+        create_commit(&repo_path, "feat: add feature");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "changelog",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert().success();
+    }
+}
+
+mod cross_platform {
+    use super::*;
+
+    #[test]
+    fn test_path_handling_windows_style() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("subdir").join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert().success();
+        assert!(config_path.exists());
+    }
+
+    #[test]
+    fn test_config_with_spaces_in_path() {
+        let temp_dir = TempDir::new().unwrap();
+        let space_dir = temp_dir.path().join("path with spaces");
+        fs::create_dir_all(&space_dir).unwrap();
+        let config_path = space_dir.join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert().success();
+        assert!(config_path.exists());
+    }
+
+    #[test]
+    fn test_config_with_unicode_path() {
+        let temp_dir = TempDir::new().unwrap();
+        let unicode_dir = temp_dir.path().join("路径测试");
+        fs::create_dir_all(&unicode_dir).unwrap();
+        let config_path = unicode_dir.join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert().success();
+        assert!(config_path.exists());
+    }
+}
+
+mod git_operations {
+    use super::*;
+
+    #[test]
+    fn test_git_repo_detection() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        create_git_repo(&repo_path);
+        configure_git_user(&repo_path);
+
+        let git_dir = repo_path.join(".git");
+        assert!(git_dir.exists(), ".git directory should exist");
+    }
+
+    #[test]
+    fn test_git_status_clean() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        create_git_repo(&repo_path);
+        configure_git_user(&repo_path);
+
+        let output = std::process::Command::new("git")
+            .args(&["status", "--porcelain"])
+            .current_dir(&repo_path)
+            .output()
+            .expect("Failed to run git status");
+
+        assert!(output.status.success());
+        assert!(String::from_utf8_lossy(&output.stdout).is_empty());
+    }
+
+    #[test]
+    fn test_git_commit_creation() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        create_git_repo(&repo_path);
+        configure_git_user(&repo_path);
+
+        create_test_file(&repo_path, "test.txt", "content");
+        stage_file(&repo_path, "test.txt");
+        create_commit(&repo_path, "feat: initial commit");
+
+        let output = std::process::Command::new("git")
+            .args(&["log", "--oneline"])
+            .current_dir(&repo_path)
+            .output()
+            .expect("Failed to run git log");
+
+        assert!(output.status.success());
+        let log = String::from_utf8_lossy(&output.stdout);
+        assert!(log.contains("initial commit"));
+    }
+}
+
+mod validators {
+    use super::*;
+
+    #[test]
+    fn test_commit_message_validation() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "test.txt", "content");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--manual",
+            "-m",
+            "invalid commit message without type",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .failure()
+            .stderr(predicate::str::contains("Invalid").or(predicate::str::contains("format")));
+    }
+
+    #[test]
+    fn test_valid_conventional_commit() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "test.txt", "content");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--manual",
+            "-m",
+            "feat: add new feature",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Dry run"));
+    }
+}
+
+mod subcommands {
+    use super::*;
+
+    #[test]
+    fn test_commit_alias() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "test.txt", "content");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "c",
+            "--manual",
+            "-m",
+            "fix: test",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("Dry run"));
+    }
+
+    #[test]
+    fn test_init_alias() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["i", "--yes", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("initialized successfully"));
+    }
+
+    #[test]
+    fn test_profile_alias() {
+        let temp_dir = TempDir::new().unwrap();
+        let config_path = temp_dir.path().join("config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["p", "list", "--config", config_path.to_str().unwrap()]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("default"));
+    }
+}
+
+mod edge_cases {
+    use super::*;
+
+    #[test]
+    fn test_config_file_not_found() {
+        let temp_dir = TempDir::new().unwrap();
+        let non_existent_config = temp_dir.path().join("non_existent_config.toml");
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "config",
+            "show",
+            "--config",
+            non_existent_config.to_str().unwrap(),
+        ]);
+
+        cmd.assert()
+            .success()
+            .stdout(predicate::str::contains("QuiCommit Configuration"))
+            .stdout(predicate::str::contains("Default profile: (none)"))
+            .stdout(predicate::str::contains("Profiles: 0"));
+    }
+
+    #[test]
+    fn test_invalid_git_repo() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+
+        let config_path = repo_path.join("config.toml");
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&["init", "--yes", "--config", config_path.to_str().unwrap()]);
+        cmd.assert().success();
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert()
+            .failure()
+            .stderr(predicate::str::contains("git").or(predicate::str::contains("repository")));
+    }
+
+    #[test]
+    fn test_empty_commit_message() {
+        let temp_dir = TempDir::new().unwrap();
+        let repo_path = temp_dir.path().to_path_buf();
+        setup_test_repo_with_file(&repo_path, "test.txt", "content");
+
+        let config_path = repo_path.join("config.toml");
+        init_quicommit(&repo_path, &config_path);
+
+        let mut cmd = cargo_bin_cmd!("quicommit");
+        cmd.args(&[
+            "commit",
+            "--manual",
+            "-m",
+            "",
+            "--dry-run",
+            "--yes",
+            "--config",
+            config_path.to_str().unwrap(),
+        ])
+        .current_dir(&repo_path);
+
+        cmd.assert().failure().stderr(predicate::str::contains(
+            "Invalid conventional commit format",
+        ));
+    }
 }