Use when typeScript async patterns including Promises, async/await, and async iterators with proper typing.
MUST use when writing TypeScript scripts.
TypeScript development. Use for TypeScript, Node.js, Express, Fastify, Zod, vitest, jest. Backend, CLI, libraries only — no frontend…
TypeScript and JavaScript expert with deep knowledge of type-level programming, performance optimization, monorepo management, migration…
TypeScript-specific conventions — type narrowing, optional chaining, type safety.
When to activate: monorepo, Turborepo, pnpm workspaces, shared packages, workspace dependencies, TypeScript project references
Master TypeScript with advanced types, generics, and strict type safety.
Modern TypeScript project architecture guide for 2025.
You are a TypeScript project architecture expert specializing in scaffolding production-ready Node.js and frontend applications.
Performs deep code reviews on TypeScript and TSX files to enforce strict type safety, idiomatic patterns, and robust generic design.
TypeScript SDK development with Node.js and browser support.
Use when typeScript utility types, mapped types, and advanced type manipulation.
Use when writing or reviewing TypeScript code that uses Zod schemas — especially when extending base schemas for specific contexts…
Use when a Design/UI task needs typography improvements, font choice, hierarchy, sizing, weight, line length, readability, or text…
Generate and format typing rules in inference rule notation for type system design
Run typos-cli on the codebase, review findings, fix real typos, and update _typos.toml config to suppress false positives.
Audits web typography against 78 rules in 10 categories: font selection and @font-face setup, sizing and measure, punctuation, spacing and…
Apple platform typography reference (San Francisco fonts, text styles, Dynamic Type, tracking, leading, internationalization) through iOS 26
Browse and select fonts from Google Fonts or curated pairings.
Typst academic paper assistant for existing `.typ` paper projects in English or Chinese.
Walk a business/UAT approver through a plain-language demo of a verified feature and capture business acceptance signoff.