How does this skill handle the 'any' type?

It strictly forbids the use of 'any', instead recommending safer alternatives such as 'unknown' for external data, generics for reusable code, or discriminated unions for complex state.

What build tools are recommended by this skill?

The skill promotes a modern toolchain including pnpm for package management, tsup for builds (ESM + CJS), and Vitest for unit and integration testing.

Can this skill help with tsconfig setup?

Absolutely. it provides essential compiler options for strict mode, including noImplicitAny and noUncheckedIndexedAccess to catch errors at compile time.

Does it support specific state management libraries?

Yes, it advocates for TanStack Query for server state management and uses discriminated unions for robust client-side state transitions.

How does it organize project files?

It moves away from technical layers (like /services or /models) in favor of a feature-based structure where components, hooks, and logic are grouped by domain.

TypeScript Excellence

Name: TypeScript Excellence
Author: phrazzld

byphrazzld

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Developer Tools

Enforces production-grade TypeScript standards by implementing strict type safety, modern toolchain configurations, and feature-based architecture.

TypeScript Excellence is a specialized capability designed to elevate the quality of TypeScript codebases. It provides Claude with a rigorous framework for writing and reviewing code, emphasizing the elimination of 'any' types in favor of safer alternatives like discriminated unions and generics. The skill standardizes project setups with optimized tsconfig profiles and a modern toolchain including pnpm, Vitest, and tsup. By advocating for feature-based module organization and TanStack Query for state management, it ensures that applications remain maintainable, scalable, and resilient to common architectural anti-patterns.

Key Features

01Strict type safety enforcement including 'no-any' policies and exact optional types

022 GitHub stars

03Robust async error handling and AbortController implementation patterns

04Server state management patterns using TanStack Query

05Standardized toolchain integration for pnpm, Vitest, tsup, and ESLint

06Feature-based module organization for scalable project architecture

Use Cases

01Setting up new TypeScript projects with high-standard configurations and directory structures

02Refactoring existing codebases to replace 'any' types with type-safe alternatives

03Reviewing pull requests to ensure compliance with modern TypeScript best practices and module standards

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add phrazzld/claude-config typescript-excellence

For use in Claude.ai and ChatGPT

Download Skill