Set Up lint-staged and Husky Pre-commit Hooks

Pre-commit hooks that run linting and formatting on staged files are one of the highest-ROI automation investments for any team. Claude can generate the full setup in one shot.

Write a lint-staged and Husky v9 configuration for a TypeScript 
Next.js project. On commit: run ESLint --fix on .ts and .tsx files, 
run Prettier on everything, and run tsc --noEmit. Fail the commit 
if any check doesn't pass.

Claude produces the package.json config, the Husky hook file, and the install commands:

# Install
npm install --save-dev husky lint-staged
npx husky init

// package.json
{
  "lint-staged": {
    "*.{ts,tsx}": ["eslint --fix", "prettier --write"],
    "*.{js,json,css,md}": ["prettier --write"]
  }
}

# .husky/pre-commit
npx lint-staged
npx tsc --noEmit

Claude also handles edge cases you'd otherwise discover the hard way: running tsc on the whole project rather than just staged files (since TypeScript needs the full type graph), and making sure ESLint runs before Prettier to avoid conflicting auto-fixes.

Hooks that run automatically are the only code quality checks that actually get applied consistently.