Post-Edit Test Guard

Hook-based loop that runs related tests after file edits to catch regressions early.

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// parameters

Triggerevent

Max iterations10

Check commandnpm test -- --findRelatedTests

Exit conditionRelated tests pass after each edit batch

// run_this_loop

Copy the kickoff into your agent first. The blueprint below explains how the loop evaluates progress and when it should stop.

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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 post-edit-test-guard.md.

Install and run the "Post-Edit Test Guard" loop.

Goal: after each batch of file edits, related tests must pass before continuing.
Between iterations run: npm test -- --findRelatedTests <edited files>
Exit when: related tests exit 0.

Step 1: After edits, run related tests. If they fail, fix before making more changes.

// blueprint

The loop contract: target outcome, execution sequence, checks, stopping condition, and safety constraints.

Goal

after each batch of file edits, related tests must pass before continuing.

// loop_sequence

// loop_sequence_diagram.json

closed loop

Trigger

event event

Actions block

2 steps

1Detect edited files

2Run related tests

Feedback gate

Evaluate: npm test -- --findRelatedTests

Run the check, read the output, then decide whether the loop is complete.

Check failed

Repeat actions with the latest feedback.

Success

Related tests pass after each edit batch

Safety capMax 10 iterations

// steps

1
Detect edited files
Identify which source files were edited in the last turn.
2
Run related tests
Run the smallest relevant test subset for edited files. Fix failures before continuing.
npm test -- --findRelatedTests

// related_recipes

Testing

Pre-Commit Guard

Hook that runs tests before git commit commands to block commits when the suite is red.

#hooks#testing#git#pre-commit

compatible with:

Testing

Flaky Test Triage

Run failing tests repeatedly, classify each failure as flaky or real, and fix only confirmed regressions.

#testing#flaky#triage

compatible with:

Testing

Post-Merge Regression Guard

Hook that runs smoke tests after git merge or rebase to catch integration regressions immediately.

#hooks#testing#git#merge

compatible with: