Claude Skills by cohen-liel

Python asyncio patterns for high-performance async code. Use when writing async functions, managing concurrency, working with aiohttp, asyncpg, or any async I/O in Python.

Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.

Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.

Celery background task patterns for Python apps. Use when implementing background jobs, scheduled tasks, email sending, image processing, or any async work that shouldn't block a web request.

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.

Docker, docker-compose, and deployment configuration best practices. Use when writing Dockerfiles, docker-compose.yml, CI/CD configs, or setting up any containerized deployment.

End-to-end testing patterns with Playwright. Use when writing browser automation tests, integration tests, testing user flows, or setting up E2E test suites.

Email sending patterns for transactional and marketing emails. Use when implementing email sending, templates, SMTP configuration, or email services like SendGrid, Resend, or Mailgun.

FastAPI best practices for building production Python backends. Use when building REST APIs, async endpoints, Pydantic models, dependency injection, middleware, or any FastAPI server.