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name: TypeScript Tooling description: Development tools, linting, and build configuration for TypeScript projects. metadata: labels: [tooling, typescript, eslint, prettier, testing] triggers: files: ['tsconfig.json', '.eslintrc.', 'jest.config.', 'package.json'] keywords: [eslint, prettier, jest, vitest, build, compile, lint]

TypeScript Tooling

Priority: P1 (OPERATIONAL)

Essential tooling for TypeScript development and maintenance.

Implementation Guidelines

• Compiler: tsc for CI. ts-node/esbuild for dev.
• Lint: ESLint + @typescript-eslint. Strict type checking.
• Format: Prettier (on save + commit).
• Test: Jest/Vitest > 80% coverage.
• Build: tsup (libs), Vite/Webpack (apps).
• Check: tsc --noEmit in CI.

Anti-Patterns

• No Disable: Avoid // eslint-disable.
• No Skip: Avoid skipLibCheck: true if possible.
• No Ignore: Use @ts-expect-error > @ts-ignore.

Configuration

Copy// tsconfig.json
{
  "compilerOptions": {
    "strict": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true
  }
}

Reference & Examples

For testing configuration and CI/CD setup: See references/REFERENCE.md.

Related Topics

best-practices | language