Coverage Until Threshold
Add focused tests until coverage meets your threshold (e.g. 80%), without changing production behavior unnecessarily.
// parameters
// run_this_loop
Copy the kickoff into your agent first. The blueprint below explains how the loop evaluates progress and when it should stop.
Use loop copies the kickoff prompt. Share copies the loop link. Open in Cursor / Claude only pre-fill that prompt — they do not install hook files. Download loop saves the loop as coverage-until-threshold.md.
Start the "Coverage Until Threshold" loop.
Goal: coverage meets the target threshold (default 80%) with all tests passing
Max iterations: 12
Between iterations run: npm test -- --coverage
Exit when: coverage threshold is met and tests exit 0
Step 1: Run coverage. Add focused tests for the biggest uncovered gaps, then repeat.
Self-pace this loop. After each iteration, run the check command, read the output, and only continue if the exit condition is not met. Stop when the exit condition passes or max iterations is reached. Give a short status update each pass.// blueprint
The loop contract: target outcome, execution sequence, checks, stopping condition, and safety constraints.
coverage meets the target threshold (default 80%) with all tests passing
// loop_sequence
Trigger
Manual start
Actions block
Feedback gate
Evaluate: npm test -- --coverage
Run the check, read the output, then decide whether the loop is complete.
Check failed
Repeat actions with the latest feedback.
Success
Coverage threshold met and all tests pass
// steps
- 1Measure coverage
Run tests with coverage reporting enabled.
npm test -- --coverage - 2Add tests
Write the smallest tests needed to cover uncovered branches. No snapshot spam or trivial asserts.
- 3Re-measure
Re-run coverage and confirm threshold is met.
npm test -- --coverage
Pre-Commit Guard
Hook that runs tests before git commit commands to block commits when the suite is red.
Flaky Test Triage
Run failing tests repeatedly, classify each failure as flaky or real, and fix only confirmed regressions.
Post-Edit Test Guard
Hook-based loop that runs related tests after file edits to catch regressions early.