typescript-patterns-enforcer

A Claude Code plugin that enforces TypeScript best practices and patterns — available as both a lightweight inline skill and a heavyweight subagent for delegated reviews.

Webpage: gagoar.github.io/typescript-patterns-enforcer

What's included

Component	When to use
Skill /ts-patterns:check	Automatically active while writing or editing .ts/.tsx files. Provides inline guidance on type safety, patterns, and anti-patterns.
Agent ts-patterns:review	Spawn via the Agent tool for full PR reviews, large refactors, or converting JavaScript to TypeScript.

Install

Via the gago-plugins marketplace:

/plugin marketplace add gagoar/gago-plugins
/plugin install ts-patterns@gago-plugins
/reload-plugins

Or standalone:

/plugin marketplace add gagoar/typescript-patterns-enforcer
/plugin install ts-patterns@ts-patterns
/reload-plugins

Core principles enforced

• No any — use unknown and narrow, or precise types
• Explicit return types on all public APIs
• readonly by default — immutability unless required
• async/await only — no callbacks or .then() chains
• Typed errors — custom error classes or discriminated-union results
• Composition over inheritance

License

MIT — see LICENSE.