Use when understanding legacy or undocumented systems, creating documentation for existing code, or extracting specifications from implementations. Invoke for legacy analysis, code archaeology, undocumented features.
6.4
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Excellent skill for reverse-engineering legacy codebases. The description clearly explains when to invoke it (legacy analysis, undocumented systems). Structure is clean with a well-organized reference system that offloads detailed guidance to separate files. Task knowledge is strong with a clear 5-step workflow (Scope, Explore, Trace, Document, Flag) and specific constraints. The skill appropriately restricts tools to Read/Grep/Glob/Bash for static analysis. Novelty is good—extracting specifications from code in EARS format with dual perspectives (Arch Hat/QA Hat) would consume many tokens if done ad-hoc by a CLI agent. Minor improvement areas: the description could explicitly mention 'EARS format output' and the workflow could include estimated token costs or complexity indicators. Overall, a well-designed specialist skill that meaningfully reduces the cost of code archaeology tasks.
Jeffallan
Skill Author
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