TypeScript Mastery

Use When

• Comprehensive TypeScript skill covering the full type system: fundamentals, generics, conditional/mapped/template literal types, utility types, strict mode, React patterns, production tsconfig, and advanced patterns from Boris Cherny (variance...
• The task needs reusable judgment, domain constraints, or a proven workflow rather than ad hoc advice.

Do Not Use When

• The task is unrelated to typescript-mastery or would be better handled by a more specific companion skill.
• The request only needs a trivial answer and none of this skill's constraints or references materially help.

Required Inputs

• Gather relevant project context, constraints, and the concrete problem to solve.
• Confirm the desired deliverable: design, code, review, migration plan, audit, or documentation.

Workflow