run-tests-after-changes

Automatically run quick tests after code modifications to ensure nothing breaks. This hook executes 'npm run test:quick' silently after any Edit operation and provides feedback on test status. Helps catch breaking changes immediately…

Automations
Post Tool
811

What it does and how to use it

A hook that automates post tool actions at key moments (before/after a tool runs, on save, etc.), without you having to think about it.

Install the hook (command above).
It runs automatically on the defined events.
Adjust the rules in the settings file if you want to fine-tune it.

Install (Claude Code)

mkdir -p .claude/hooks && curl -fsSL https://doutorai.pt/data/lib/hooks__run-tests-after-changes.md -o .claude/hooks/run-tests-after-changes.json

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

{
  "description": "Automatically run quick tests after code modifications to ensure nothing breaks. This hook executes 'npm run test:quick' silently after any Edit operation and provides feedback on test status. Helps catch breaking changes immediately during development. Only runs if package.json exists and the test:quick script is available.",
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "Edit",
        "hooks": [
          {
            "type": "command",
            "command": "if [[ -f package.json ]] && npm run test:quick --silent >/dev/null 2>&1; then echo '✅ Tests pass

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