“TypeScript”

TypeScript-specific conventions including ts-expect-error usage, unknown vs any, const assertions, and type vs interface preferences.

This skill should be used when the user asks to "optimize TypeScript performance", "speed up tsc compilation", "configure tsconfig.json", "fix type errors"…

Use for TypeScript source layout, Rollup build, and dist outputs in contentstack-typescript.

Use before you write or change TypeScript or JavaScript, add an npm dependency, set up a new package, or write a frontend file, a Node script, or a test file…

Implement or modify TypeScript SDK behavior in @composio/core or shared TypeScript packages, including tools, toolkits, sessions, auth configs, connected…

Implements advanced TypeScript type systems, creates custom type guards, utility types, and branded types, and configures tRPC for end-to-end type safety.

TypeScript type-system discipline for any .ts/.tsx file: make illegal states unrepresentable, validate at boundaries, avoid as/any.

TypeScript type-system discipline for any .ts/.tsx file: make illegal states unrepresentable, validate at boundaries, avoid as/any.

Use when building TypeScript applications requiring advanced type systems, generics, or full-stack type safety.

Select and run TypeScript SDK verification for packages, examples, type checks, linting, builds, Vitest suites, Effect v4 CLI tests, and runtime E2E tests.

Implement advanced TypeScript types, reusable type utilities, and compile-time contracts with generics, conditional/mapped types, and template literals.

JavaScript and TypeScript development with ES6+, Node.js, React, and modern web frameworks.

Diagnose and optimize TypeScript checker, build, V8, Node, and browser performance.

TypeScript and JavaScript coding style conventions, centered on top-down narrative ordering (caller first, helpers below) and functions over classes.

Designs complex generic types, refactors `any` types to strict alternatives, creates type guards and utility types, and resolves TypeScript compiler errors.

TypeScript best practices.

Guide for running inline TypeScript scripts with Bun.

End-to-end TypeScript engineering skill for designing, implementing, reviewing, and refactoring production-grade TS codebases.

Implement, modify, test, or document TypeScript provider packages under ts/packages/providers, including framework adapters for OpenAI, Anthropic, Google…

pnpm + Nix build conventions.

Use when writing, reviewing, or architecting TypeScript in app or library code.

Design or review TypeScript domain types, parsing boundaries, and type-safety trade-offs.

You MUST activate this skill when working on TypeScript or JavaScript projects

Apply version-aware TypeScript practices when implementing, reviewing, or refactoring TypeScript or TSX code in any application or library.