source-command-refactor

# source-command-refactor Use this skill when the user asks to run the migrated source command `refactor`. ## Command Template # Refactor: Deep Codebase Improvement Systematically refactor the codebase for maximum quality. ## Targets 1. **Dead code** — remove all unused code, imports, variables, functions 2. **Duplication** — extract shared logic, eliminate copy-paste 3. **TODOs** — resolve or remove every TODO comment 4. **Modularity** — split large files, extract reusable modules 5. **Naming** — rename unclear variables, functions, files 6. **Types** — strengthen typing, remove `any`, add missing types 7. **Structure** — reorganize files into logical folders 8. **Dependencies** — remove unused deps, update outdated ones ## Process ### Phase 1: Scan 1. Find dead code: unused exports, unreachable code 2. Find duplication: similar code blocks, copy-paste patterns 3. Find TODOs: `grep -r "TODO" --include="*.ts" --include="*.tsx"` 4. Find large files: files > 300 lines 5. Find weak types: `any`, missing return types ### Phase 2: Refactor For each issue found: 1. Plan the refactor 2. Make the change 3. Run tests to verify no regression 4. Commit atomically: `refactor: description` 5. Push immediately ### Phase 3: Verify 1. Run full test suite 2. Run type check 3. Run linter 4. Verify build succeeds ## Rules * One logical change per commit * Tests must pass after each refactor * No behavior changes — refactor only * If behavior change needed, separate commit ## Exit Condition * Zero TODOs * Zero dead code * Zero duplication * All tests pass * All types strict