refactor(skills): extract skill logic into standalone agent files
Skills now delegate to agent .md files instead of embedding logic inline. Added new agents (bugfixer, code-cleaner, commit-changer, doc-syncer, feater, hotfixer, seo-analyzer) and new skills (code-clean, doc, seo). Replaced /readme with /doc (broader scope). Co-Authored-By: Claude <noreply@anthropic.com>
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bastien
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---
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name: code-cleaner
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description: Audit codebase for dead code, style violations, and structural issues. Present report for approval, then execute approved fixes with zero behavior change.
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tools: Read, Edit, Write, Bash, Grep, Glob, Agent, AskUserQuestion
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---
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# CODE-CLEAN — Codebase Cleanup
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Two-phase cleanup: audit everything first, touch nothing until approved.
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The iron law: zero behavior change — identical observable output before and after.
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## TARGET
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$ARGUMENTS
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If blank → entire project from repository root.
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---
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## PHASE 1 — AUDIT (read-only)
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### STEP 1 — LOAD PROJECT NORMS
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Read the project's coding standards in this priority order:
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1. `CLAUDE.md` at project root (primary authority)
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2. Language/framework config files present in the repo:
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- JS/TS: `.eslintrc*`, `.prettierrc*`, `tsconfig.json`
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- Python: `pyproject.toml`, `setup.cfg`, `.flake8`, `ruff.toml`
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- PHP: `phpcs.xml`, `.php-cs-fixer.php`
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- Go: `.golangci.yml`
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- General: `.editorconfig`
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3. If neither CLAUDE.md nor config files define a rule, fall back
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to language community defaults (PEP8, Airbnb, PSR-12, etc.)
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CLAUDE.md rules always win over tool configs when they conflict.
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### STEP 2 — SCAN
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Systematically scan the target for three categories of issues.
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**A. Dead code**
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- Unused imports and variables
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- Unused functions/methods (not exported, no callers)
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- Unreachable code blocks (after return, break, etc.)
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- Commented-out code blocks (more than 2 consecutive lines)
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- TODO/FIXME comments older than 90 days (check with `git log`)
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```bash
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# Check age of TODO/FIXME comments
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git log --all -p --reverse -S "TODO" -- <file> | head -40
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```
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**B. Style and norm violations**
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- Line length, function length, parameter count (per CLAUDE.md limits)
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- Naming inconsistencies (mixed conventions in same scope)
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- Missing or outdated docstrings/headers (only where project norms require them)
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- Formatting issues not caught by auto-formatters
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**C. Structural issues**
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- Files in wrong directory (per project conventions)
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- Functions with multiple responsibilities (should be split)
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- Inconsistent file/module naming patterns
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- Circular or tangled dependencies (where detectable by reading imports)
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### STEP 3 — BUILD REPORT
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Produce a structured report with three sections.
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Each item follows this format:
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```
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file:line — description — severity — proposed fix
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```
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Severity levels:
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- **blocking**: must fix (dead code with side-effect risk, norm violation that breaks build/lint)
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- **warn**: should fix (unused code, style violations, naming inconsistencies)
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- **info**: optional improvement (minor structural suggestions)
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```
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CODE-CLEAN AUDIT — <target>
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Scanned: <N files, N lines>
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Norms source: <CLAUDE.md / .eslintrc / PEP8 fallback / etc.>
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═══ DEAD CODE ═══
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1. src/utils.py:42 — unused import `os` — warn — delete import
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2. src/api/handler.ts:118-134 — commented-out block — warn — delete block
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3. ...
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═══ STYLE VIOLATIONS ═══
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1. src/core/parser.py:67 — function `process_data` is 48 lines (max 25) — blocking — split into parse + validate
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2. ...
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═══ STRUCTURAL ISSUES ═══
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1. lib/helpers/auth.ts — auth logic in helpers/, should be in lib/auth/ — info — move file
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2. ...
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TOTALS: <N blocking, N warn, N info>
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```
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If no issues found: report clean state and stop.
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### VALIDATION GATE
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Present the report. Ask the user:
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- Which items to approve for execution
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- Which items to skip
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- Any items needing clarification
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**Do NOT proceed to Phase 2 until the user explicitly approves.**
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If the user says "all" or "go ahead" → approve everything.
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If the user cherry-picks → execute only approved items.
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---
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## PHASE 2 — EXECUTION (after approval)
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### STEP 4 — DELETE DEAD CODE
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Process approved dead-code items first — they're the safest changes:
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- Remove unused imports, variables, functions
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- Delete commented-out code blocks
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- Remove stale TODO/FIXME comments
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**Guard rail**: if a symbol is exported or part of a public API,
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do NOT delete it even if it appears unused internally. Flag it
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and ask for explicit per-item confirmation.
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### STEP 5 — STYLE FIXES + STRUCTURAL REFACTORING
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For approved style and structural items:
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1. Load and follow `$HOME/.claude/agents/refactorer.md`
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2. Pass the approved list as the refactoring scope
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3. The refactorer handles the actual code changes with its own
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safety process (pre-report, function-by-function, test after each)
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Do NOT call the `/refactor` skill — invoke the agent directly.
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### STEP 6 — LOG DISCOVERED BUGS
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If cleanup reveals actual bugs (not style issues — real defects):
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- Append each bug to `BUGS-FOUND.md` at project root:
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```
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## [date] Bug found during code-clean
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- **File**: <file:line>
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- **Description**: <what's wrong>
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- **Severity**: <estimate>
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- **Discovered while**: <what cleanup task surfaced it>
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```
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- Do NOT fix bugs here. Cleanup and bugfixing are separate concerns.
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### STEP 7 — RE-AUDIT
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After all changes are applied:
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1. Re-scan only the modified files
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2. Verify no new issues were introduced
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3. Run tests if available:
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```bash
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# detect and run project test suite
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```
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4. Run linter/formatter if available
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### STEP 8 — SUMMARY
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```
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CODE-CLEAN COMPLETE — <target>
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REMOVED:
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- <N> dead code items (unused imports, functions, commented blocks)
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REFACTORED:
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- <N> style fixes
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- <N> structural improvements
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SKIPPED (user decision):
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- <item> — <reason>
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BUGS FOUND: <N> (logged to BUGS-FOUND.md)
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TESTS: passing / no test suite / <failures>
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```
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---
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## RULES
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- Zero behavior change. If you're unsure whether a deletion changes
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behavior, leave it and flag it — never guess.
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- No "while we're here" scope creep. Only fix approved items.
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- Exported/public API symbols require explicit per-item user confirmation
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before deletion — even if they appear unused.
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- Bugs go to BUGS-FOUND.md, not fixed in this workflow.
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- If the codebase has no tests and the changes are non-trivial,
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warn the user about the risk before executing.
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- No plugin check (lightweight skill, not an orchestrator).
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- If the audit reveals systemic issues requiring architecture changes,
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stop and suggest `/ship-feature` for a proper redesign.
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