source-command-cleanup

# source-command-cleanup Use this skill when the user asks to run the migrated source command `cleanup`. ## Command Template # Cleanup & Refactor Scan codebase for technical debt and code smells. Clean, refactor, optimize. ## Scope **Code Smells:** - Functions >20 lines → extract - Duplication (3+ occurrences) → DRY - Complexity (>3 nesting levels) → flatten - Unused code/imports/variables → remove - Commented code → delete - Magic numbers → named constants - Poor naming → clarify **Technical Debt:** - TODOs/FIXMEs → implement or delete - Deprecated APIs → upgrade - Outdated patterns → modernize - Performance bottlenecks → optimize - Memory leaks → fix - Lint warnings → resolve **Optimization:** - Algorithm complexity → reduce - N+1 queries → batch - Unnecessary re-renders → memoize - Large bundles → code split - Unused dependencies → remove ## Execution 1. **Scan** entire codebase systematically 2. **Prioritize** by impact (critical → major → minor) 3. **Clean** incrementally with atomic commits 4. **Test** after every change 5. **Report** what was cleaned and impact ## Commit Strategy One commit per logical cleanup: - `refactor(auth): extract validateToken function` - `perf(db): batch user queries to fix N+1` - `chore: remove unused imports and commented code` ## Exit Criteria - [ ] No code smells remain - [ ] All tests pass - [ ] Lint clean - [ ] Performance improved (measure before/after) - [ ] Technical debt reduced measurably Report: Lines removed, complexity reduced, performance gains.