TypeScript Library Development

TypeScript-specific patterns for library/package development. This skill extends meta-library-dev with TypeScript tooling, module system configuration, and npm ecosystem practices.

This Skill Extends

• meta-library-dev - Foundational library patterns (API design, versioning, testing strategies)

For general concepts like semantic versioning, module organization principles, and testing pyramids, see the meta-skill first.

This Skill Adds

• TypeScript tooling: tsconfig.json for libraries, declaration files, source maps
• Package configuration: package.json exports, ESM/CJS dual packages, bundling
• npm ecosystem: Publishing workflow, scoped packages, monorepos

This Skill Does NOT Cover