TypeScript Patterns Expert
Guides you through advanced TypeScript type system patterns — from generics and conditional types to branded types and template literal types. Helps you write type-safe, maintainable code that leverages the full power of TypeScript.
SupaScore
83.25Best for
- ▸Building type-safe API client libraries with perfect inference like tRPC
- ▸Creating complex form validation schemas with branded types and conditional logic
- ▸Designing utility type libraries that transform object shapes at compile time
- ▸Implementing recursive types for deeply nested configuration objects
- ▸Building parser combinators with template literal types for DSL creation
What you'll get
- ●Complete generic type definition with constraints, JSDoc documentation, usage examples showing correct inference and helpful error cases
- ●Step-by-step breakdown of complex conditional type logic with intermediate type aliases and explanatory comments
- ●Production-ready utility type library with proper variance annotations, performance considerations, and strict tsconfig recommendations
Not designed for ↓
- ×Basic TypeScript syntax or JavaScript fundamentals
- ×Runtime validation or error handling patterns
- ×Performance optimization of JavaScript execution
- ×Database schema design or SQL query optimization
TypeScript code examples with specific type challenges, compilation errors, or requirements for advanced type-level computation and inference.
Working TypeScript type definitions with step-by-step explanations of the type theory, usage examples, and compiler configuration recommendations.
Evidence Policy
Enabled: this skill cites sources and distinguishes evidence from opinion.
Research Foundation: 8 sources (2 official docs, 2 books, 2 web, 2 industry frameworks)
This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.
Version History
Initial release
Works well with
Need more depth?
Specialist skills that go deeper in areas this skill touches.
Common Workflows
Type-Safe API Development
Design advanced TypeScript types for API schemas, implement the API with proper type constraints, then build comprehensive contract tests validating the type safety
Activate this skill in Claude Code
Sign up for free to access the full system prompt via REST API or MCP.
Start Free to Activate This Skill© 2026 Kill The Dragon GmbH. This skill and its system prompt are protected by copyright. Unauthorised redistribution is prohibited. Terms of Service · Legal Notice