对仓库做定向代码探索并把"提问→读代码→得结论"沉淀为可检索证据，三种类型 question / module-overview / spike。触发：用户说"先 explore 一下"、"这个仓库里 X 怎么实现"、"快速熟悉这个模块"、"把探索结果存档"。
This skill does not declare a tool allowlist. The agent host applies whatever default tools are available at runtime.
SKILL.md / Manifest
https://raw.githubusercontent.com/liuzhengdongfortest/codestable/main/cs-explore/SKILL.mdRegistry
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