lint-staged

lint-staged runs commands only against Git staged files—ideal for fast Prettier/ESLint fixes before commit without scanning the entire monorepo.

					{
  "lint-staged": {
    "*.{ts,tsx}": ["eslint --fix", "prettier --write"]
  }
}
				

Some checks need project-wide context: TypeScript project references, import boundaries, or rules that analyze the whole graph. Those belong in CI or explicit `pnpm lint` scripts, not staged-only paths.

On interviews: staged scope limits, partial staging with formatting write-backs, performance tuning, and why lint-staged is convenience not proof.

Common pitfalls: relying on staged ESLint for type errors; inconsistent fixes when only part of a file is staged; hiding monorepo-wide regressions.

The trade-off is local speed versus incomplete correctness guarantees.

Checklist:

• Use for fast auto-fixable checks.
• Keep project-wide typecheck in CI.
• Handle partially staged hunks carefully.
• Document what hooks do not cover.