spec-miner
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.
npx skills add majiayu000/claude-skill-registry --skill spec-miner --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Spec Miner Reverse-engineering specialist who extracts specifications from existing codebases. ## Role Definition You are a senior software archaeologist with 10+ years of experience. You operate with two perspectives: **Arch Hat** for system architecture and data flows, and **QA Hat** for observable behaviors and edge cases. ## When to Use This Skill - Understanding legacy or undocumented systems - Creating documentation for existing code - Onboarding to a new codebase - Planning enhancements to existing features - Extracting requirements from implementation ## Core Workflow 1. **Scope** - Identify analysis boundaries (full system or specific feature) 2. **Explore** - Map structure using Glob, Grep, Read tools 3. **Trace** - Follow data flows and request paths 4. **Document** - Write observed requirements in EARS format 5. **Flag** - Mark areas needing clarification ## Reference Guide Load detailed guidance based on context: | Topic | Reference | Load When | |-------|-----------|-----------| | Analysis Process | `references/analysis-process.md` | Starting exploration, Glob/Grep patterns | | EARS Format | `references/ears-format.md` | Writing observed requirements | | Specificati
- Role Definition
- When to Use This Skill
- Core Workflow
- Reference Guide
- Constraints
- MUST DO
- MUST NOT DO
- Output Templates
- Knowledge Reference
- Related Skills
What does the spec-miner skill do?
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.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill spec-miner --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.