20260625:很多新内容
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concepts/skill-lifecycle.md
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concepts/skill-lifecycle.md
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title: "Skill 生命周期"
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created: 2026-06-19
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updated: 2026-06-19
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type: concept
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tags: [agent-skills, lifecycle, framework]
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sources:
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- https://arxiv.org/abs/2605.07358
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---
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# Skill 生命周期
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## 四阶段框架
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Zhou et al. (2026) 将 agent skill 研究围绕四个核心生命周期阶段组织:
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```
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Representation → Acquisition → Retrieval & Selection → Evolution
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↑ |
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└───────────────────────────────────────────────────┘
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(feedback loop)
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```
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### 1. Representation(表示)
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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。
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→ [[skill-representation|Skill 表示]]
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### 2. Acquisition(获取)
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决定 skill **如何被创建**。四种来源:人工、经验、任务、语料。
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→ [[skill-acquisition|Skill 获取]]
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### 3. Retrieval & Selection(检索与选择)
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决定 **在运行时找到并激活哪个 skill**。
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- 检索:将大规模 skill 池缩减为候选集
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- 选择:从候选集中确定最终调用哪个(或如何组合)
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→ [[skill-retrieval|Skill 检索]] · [[skill-selection|Skill 选择]]
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### 4. Evolution(演化)
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决定已有 skill **如何被修订、验证和治理**。
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→ [[skill-evolution|Skill 演化]]
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## 生命周期耦合
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四个阶段紧密耦合——错误可跨阶段传播:
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- 不完整的 skill → 更难检索
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- 弱检索信号 → 激活不适用的 skill
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- 过时的依赖 → 破坏原本可用的行为
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## 参考
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- [[zhou-agent-skills-survey-2026|Zhou et al. 2026]]
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- [[agent-skill|Agent Skill]]
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- [[skill-evolution|Skill 演化]]
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