Dead code elimination
Hunt down unreferenced exports, unused files, and unreachable branches, deleting them in small verified steps until the analyzer reports clean.
/goal `npx knip` reports no unused files or exports — remove one cluster of dead code at a time, run the full test suite and typecheck after each removal, and revert any deletion that breaks them; stop after 15 turns
claude-code · codex · cursor
Implementation note
The delete-verify-revert rhythm makes this safe on codebases with good test coverage; be more cautious on repos with reflection or dynamic imports.
Source: looprepo ↗graded B · 85/100 — how grades work →
More refactoring loops
Refactor auth module, pass tests
Refactor the authentication module iteratively until all tests pass, stopping after ten attempts.
/goal "Refactor auth module until all tests pass" --max-iterations 10
refactoringlow risk
Migrate an API import by import
Sweep a codebase from a legacy API to its v2 replacement with tests and typecheck as the safety net, capped at 30 turns.
/goal every file importing from `./legacy-api` now imports from `./v2-api`, all tests pass, and `npm run typecheck` is clean — stop after 30 turns
refactoringmedium risk
Repair React issues in small batches
Baseline the scan, fix a small batch of real errors or warnings, and verify each change improves it without regressions.
Run `pnpm exec react-doctor . --verbose --yes --offline --fail-on none` to record the baseline, then rerun with `--fail-on error`. Fix at most five genuine findings, run the same scan and relevant project checks, and keep only verified improvements. Clear errors before high-confidence warnings. Stop when clean, blocked, approval is required, a finding is false-positive, or another pass makes no measurable progress. Finish with baseline and final results, retained fixes, reverted attempts, checks, and remaining findings.
refactoringmedium risk