把已拍板的技术选型、架构决定、长期约束、编码规约记成永久性决策文档（tech-stack / architecture / constraint / convention 四种）。触发：用户说"记录决定"、"归档技术选型"、"ADR"、"记录这条约束"、"把规约写下来"，或 design / analyze 后做出重要选择。只归档已拍板的，讨论中的不归档。
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-decide/SKILL.mdRegistry
github (via claudemarketplaces.com)