TypeScript Fundamentals

Purpose

Use this skill to coordinate the learning and review path for TypeScript safety, types, DTO boundaries, module hygiene, and pure modeling.

This is a mother skill. It does not replace specialized skills for strict typing, DTO mapping, or module patterns. It tells an agent which TypeScript primitive to use, in what order to teach it, and when a runtime-specific or version-specific variant is more appropriate.

The core rule is simple:

Pick the type shape that matches the contract, the runtime, and the team maturity.

When to Use

Use this skill when: