Individual skill

typescript-pro

Implements advanced TypeScript type systems, creates custom type guards, utility types, and branded types, and configures tRPC for end-to-end type safety. Use when building TypeScript applications requiring advanced generics, conditional or mapped types, discriminated unions, monorepo setup, or full-stack type safety with tRPC.

skills/typescript-pro/SKILL.md

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Repository stars (not skill ratings): 12,276
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License: MIT

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SKILL.mdcore · 5,627 bytes
references/advanced-types.mddoc · 6,449 bytes
references/configuration.mddoc · 8,965 bytes
references/patterns.mddoc · 11,213 bytes
references/type-guards.mddoc · 7,929 bytes
references/utility-types.mddoc · 8,602 bytes

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# TypeScript Pro

## Core Workflow

1. **Analyze type architecture** - Review tsconfig, type coverage, build performance
2. **Design type-first APIs** - Create branded types, generics, utility types
3. **Implement with type safety** - Write type guards, discriminated unions, conditional types; run `tsc --noEmit` to catch type errors before proceeding
4. **Optimize build** - Configure project references, incremental compilation, tree shaking; re-run `tsc --noEmit` to confirm zero errors after changes
5. **Test types** - Confirm type coverage with a tool like `type-coverage`; validate that all public APIs have explicit return types; iterate on steps 3–4 until all checks pass

## Reference Guide

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