20260706:新增一些文章
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concepts/minimum-viable-context.md
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title: "Minimum Viable Context(最小可行上下文)"
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created: 2026-06-29
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updated: 2026-06-29
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type: concept
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tags: [context-engineering, optimization, pattern]
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sources: [[prompt-to-loop-engineering-2026]]
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confidence: high
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---
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# Minimum Viable Context (MVC)
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> [[context-engineering|Context Engineering]] 中的核心方法论之一:严控单次请求体积,只组合最必需的用户目标、检索结果与当前工具定义,避免信息冗余。
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## 与 MVC(软件工程)的类比
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借鉴最小可行产品(MVP)的思想:
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- **不是"给得越多越好"**:超出模型注意力预算的信息会稀释信号
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- **高信号 Token 优先**:每次请求找到最小的高信号 Token 集
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## 核心原则
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1. **按需装配**:不预加载全部上下文,运行时动态组合
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2. **目标导向**:以当前任务的 Goal 为锚点筛选
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3. **工具定义克制**:不暴露全部工具,仅提供当前步骤相关的
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## 与相关模式的配合
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- [[just-in-time-retrieval|JIT 检索]]:初始仅维护轻量引用,按需实时加载
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- [[context-failure-modes|Context Overflow]] 的预防手段
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- 渐进式披露(Progressive Disclosure):先暴露名称,按需加载细节
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## 工程实践
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Anthropic Skills 采用此设计哲学:Skills 的完整内容不在每次请求中全量加载,而是先暴露名称和摘要,模型按需调用。
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## 相关概念
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- [[context-engineering|Context Engineering]]
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- [[context-failure-modes|上下文故障模式]]
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- [[just-in-time-retrieval|JIT 检索]]
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