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---
title: "Skill 生命周期"
created: 2026-06-19
updated: 2026-06-19
type: concept
tags: [agent-skills, lifecycle, framework]
sources:
- https://arxiv.org/abs/2605.07358
---
# Skill 生命周期
## 四阶段框架
Zhou et al. (2026) 将 agent skill 研究围绕四个核心生命周期阶段组织:
```
Representation → Acquisition → Retrieval & Selection → Evolution
↑ |
└───────────────────────────────────────────────────┘
(feedback loop)
```
### 1. Representation表示
决定 skill **以什么形态存在**。三种主要形态:文本型、代码型、混合型。
→ [[skill-representation|Skill 表示]]
### 2. Acquisition获取
决定 skill **如何被创建**。四种来源:人工、经验、任务、语料。
→ [[skill-acquisition|Skill 获取]]
### 3. Retrieval & Selection检索与选择
决定 **在运行时找到并激活哪个 skill**
- 检索:将大规模 skill 池缩减为候选集
- 选择:从候选集中确定最终调用哪个(或如何组合)
→ [[skill-retrieval|Skill 检索]] · [[skill-selection|Skill 选择]]
### 4. Evolution演化
决定已有 skill **如何被修订、验证和治理**
→ [[skill-evolution|Skill 演化]]
## 生命周期耦合
四个阶段紧密耦合——错误可跨阶段传播:
- 不完整的 skill → 更难检索
- 弱检索信号 → 激活不适用的 skill
- 过时的依赖 → 破坏原本可用的行为
## 参考
- [[zhou-agent-skills-survey-2026|Zhou et al. 2026]]
- [[agent-skill|Agent Skill]]
- [[skill-evolution|Skill 演化]]