#Technical

Writing Skills for Claude Code

How to author a SKILL.md that Claude Code will discover, load, and apply correctly.

Use when: User wants to author a new Claude Code skill, or is asking how SKILL.md files should be structured.

TypeScript Strict Mode Expert

Enforces strict TypeScript patterns: no any, explicit return types, exhaustive switch, and discriminated unions.

Security-First Development

OWASP-aligned security rules: input validation, auth patterns, secrets handling, and XSS prevention.

React Best Practices Guardian

Enforces modern React patterns: server components, proper hooks usage, and performance-first composition.

Tailwind CSS Architecture

Opinionated Tailwind CSS rules: utility-first, design tokens, responsive patterns, and dark mode.

Git Commit Message Standards

Enforces Conventional Commits with scope, clear descriptions, and co-authorship attribution.

Test-Driven Development Coach

Enforces red-green-refactor TDD workflow with clear test boundaries and realistic mocking strategies.

API Design First Principles

Guides REST and tRPC API design with consistent naming, error handling, and pagination patterns.

Database Query Optimization

Rules for writing efficient SQL and ORM queries: indexing strategy, N+1 prevention, and query planning.

Python Clean Code Standards

PEP 8 plus pragmatic Python rules: type hints, dataclasses, error handling, and async patterns.

Documentation Writing Standards

Rules for writing clear technical docs: README structure, JSDoc, inline comments, and ADRs.