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setup-pre-commit

setup-pre-commit

github.com/timschochDevelopment079 installsUpdated 5d ago
Repository

About setup-pre-commit

A repository setup skill that configures Husky pre-commit hooks, lint-staged, and Prettier, with available typecheck and test scripts run before commits. It is for developers who want staged-file formatting and checks integrated into Git commits.

Key features

  1. 01Detects npm, pnpm, yarn, or bun
  2. 02Installs Husky, lint-staged, and Prettier
  3. 03Formats staged files with Prettier
  4. 04Runs available typecheck and test scripts
  5. 05Checks hook and formatter setup

Use cases

  1. 01Add formatting and checks to Git commits
  2. 02Set up hooks in an existing JavaScript repository

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/timschoch/mattpocock-skills --skill setup-pre-commit

After installing, type/setup-pre-commitin Claude Code to confirm it loaded.

Bundled filesagents/openai.yaml

Details

From the project README

Setup Pre-Commit Hooks

What This Sets Up

  • Husky pre-commit hook
  • lint-staged running Prettier on all staged files
  • Prettier config (if missing)
  • typecheck and test scripts in the pre-commit hook

Steps

1. Detect package manager

Check for package-lock.json (npm), pnpm-lock.yaml (pnpm), yarn.lock (yarn), bun.lockb (bun). Use whichever is present. Default to npm if unclear.

2. Install dependencies

Install as devDependencies:

husky lint-staged prettier
3. Initialize Husky
npx husky init

This creates .husky/ dir and adds prepare: "husky" to package.json.

4. Create .husky/pre-commit

Write this file (no shebang needed for Husky v9+):

npx lint-staged
npm run typecheck
npm run test

Adapt: Replace npm with detected package manager. If repo has no typecheck or test script in package.json, omit those lines and tell the user.

5. Create .lintstagedrc
{
  "*": "prettier --ignore-unknown --write"
}
6. Create .prettierrc (if missing)

Only create if no Prettier config exists. Use these defaults:

{
  "useTabs": false,
  "tabWidth": 2,
  "printWidth": 80,
  "singleQuote": false,
  "trailingComma": "es5",
  "semi": true,
  "arrowParens": "always"
}
7. Verify
  • .husky/pre-commit exists and is executable
  • .lintstagedrc exists
  • prepare script in package.json is "husky"
  • prettier config exists
  • Run npx lint-staged to verify it works
8. Commit

Stage all changed/created files and commit with message: Add pre-commit hooks (husky + lint-staged + prettier)

This will run through the new pre-commit hooks: a good smoke test that everything works.

Notes

  • Husky v9+ doesn't need shebangs in hook files
  • prettier --ignore-unknown skips files Prettier can't parse (images, etc.)
  • The pre-commit runs lint-staged first (fast, staged-only), then full typecheck and tests

Comments

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