Total 52,363 skills, Backend Development has 4234 skills
Showing 12 of 4234 skills
Use when symfony messenger retry failures
Use when symfony doctrine fetch modes
Use when symfony value objects and dtos
Use when symfony ports and adapters
Use when symfony strategy pattern
Use when symfony writing plans
Use when symfony executing plans
Use when symfony api platform versioning
Use when symfony brainstorming
Evolve APIs safely using versioned DTOs/transformers, deprecations, and compatibility tests
Debug FastAPI applications systematically with this comprehensive troubleshooting skill. Covers async/await issues, Pydantic validation errors (422 responses), dependency injection failures, CORS configuration problems, database session management, and circular import resolution. Provides structured four-phase debugging methodology with FastAPI-specific tools including uvicorn logging, OpenAPI docs, and middleware debugging patterns.
Refactor Flask code to improve maintainability, readability, and adherence to best practices. This skill transforms Flask applications using the application factory pattern, Blueprint organization, and service layer separation. It addresses fat route handlers, missing error handling, improper context local usage, and security issues. Apply when you notice global app instances, routes without Blueprints, business logic in handlers, or missing CSRF protection.