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Python asyncio patterns for concurrent programming, async/await, and non-blocking I/O operations. WHEN: Building async APIs with FastAPI/aiohttp, implementing concurrent I/O operations, using asyncio.gather/create_task, rate limiting with semaphores, producer-consumer patterns. WHEN NOT: Synchronous Python code, CPU-bound tasks (use multiprocessing), general Python development without async.
Complete guide for creating, publishing, and consuming events in the DeLoNET home network's 33GOD agentic developer pipeline. Built on RabbitMQ with strict type safety via Pydantic, async Python (aio-pika), FastAPI, and Redis-backed correlation tracking. This skill is REQUIRED for any work involving the home network event bus.
Principal Software Architect for Rainze. Use when implementing features, writing code, or creating modules. Expert in Python + Rust hybrid architecture with 9 coding commandments.
Python coding style - pragmatic, readable, fast development over heavy abstraction
Unified enterprise programming language skill covering 25+ languages including Python 3.13, TypeScript 5.9, Go 1.23, Rust 1.91, Java 21, JavaScript ES2025, C++, C#, PHP, Swift, Kotlin, Scala, Elixir, Ruby, R, SQL, Shell, and more with patterns, best practices, and Context7 integration
Guide for implementing Clean Architecture in Python/FastAPI projects. Use when creating new modules, refactoring existing code to Clean Architecture, designing layer structures, or implementing Port/Adapter patterns. Triggers on "clean architecture", "hexagonal", "ports and adapters", "layer structure", "DIP", "dependency inversion".
Implement the Result[T] = Union[Success[T], Failure] pattern for explicit, type-safe error handling in Python. Use this skill when writing service methods that can fail, adding new error codes, refactoring try/except blocks, or implementing Railway-Oriented Programming patterns. This pattern replaces exceptions for control flow, making errors explicit in function signatures.
Best practices for async Python code, avoiding common pitfalls like await precedence bugs and sync-in-async anti-patterns.
Expert Senior Backend Engineer (Polyglot). Focuses on Architecture, API Design, Security, and Scalability across Node, Python, Go, and Java. Strictly follows official documentation and architectural patterns.
Complete patterns for containerizing applications with Docker: Dockerfiles, multi-stage builds, layer optimization, security best practices, and production-ready configurations for Python/FastAPI and Node.js/Next.js apps.
Implement secure authentication bridge between Better Auth (Next.js frontend) and FastAPI (Python backend) using JWKS JWT token verification. Use this skill when users need to (1) Integrate Better Auth with FastAPI backend, (2) Implement JWT authentication with JWKS verification, (3) Set up user isolation and authorization in FastAPI endpoints, (4) Configure frontend to send authenticated API requests, or (5) Troubleshoot Better Auth + FastAPI authentication issues.
Comprehensive FastAPI development guide from beginner to production. This skill should be used when building REST APIs, web backends, microservices, or any Python web application with FastAPI. Covers project setup, routing, Pydantic models, async database operations, authentication (JWT/OAuth2), dependency injection, background tasks, WebSockets, testing, and production deployment. Triggers on tasks like "create a FastAPI app", "build an API", "add authentication", "connect database", "deploy FastAPI", or any FastAPI-related development.
FastAPI Python backend in api/. Covers routes, models, Supabase integration, authentication, R2 storage, and Cloudflare Workers deployment. Port 9990 for local dev. OpenAPI docs at /docs.
Guide for developing the API service using Python, FastAPI, Pydantic, and Docker. Use this when creating or modifying API endpoints, models, routers, or backend logic.
Expert code writer specializing in production-grade Python, FastAPI, and microservices development. Activated for writing clean, maintainable, well-tested code following best practices for the SaaS platform.
Rust/WASM backend in api-rust/. High-performance alternative using workers-rs, utoipa for OpenAPI, and Supabase REST API. Port 9990 for local dev. 10-100x faster than Python.
