Total 50,510 skills, Backend Development has 4134 skills
Showing 12 of 4134 skills
Production-grade WebSocket connection management with connection limits, user-to-connection mapping, ping/pong health verification, and automatic stale connection cleanup.
Hierarchical exception system with HTTP status codes, machine-readable error codes, and structured responses for consistent API error handling across all endpoints.
Generate Python FastAPI code following project design patterns. Use when creating models, schemas, repositories, services, controllers, database migrations, authentication, or tests. Enforces layered architecture, async patterns, OWASP security, and Alembic migration naming conventions (yyyymmdd_HHmm_feature).
Build and deploy a paid API that other agents can pay to use via x402. Use when you or the user want to monetize an API, make money, earn money, offer a service, sell a service to other agents, charge for endpoints, create a paid endpoint, or set up a paid service. Covers "make money by offering an endpoint", "sell a service", "monetize your data", "create a paid API".
Master WordPress project orchestrator - coordinates all WordPress skills for complete site setup, audit, and optimization. Use for new project setup, site audits, or comprehensive reviews. Runs interview phases and manages todo lists.
Master NFT development with token standards, metadata, marketplaces, and on-chain art
Guide architectural design decisions for software systems. Use this skill when designing new systems, evaluating architecture trade-offs, or creating technical design documents. Helps produce clear, well-structured design artifacts including component diagrams, data flow, and decision records.
Database migration best practices for schema changes, data migrations, rollbacks, and zero-downtime deployments across PostgreSQL, MySQL, and common ORMs (Prisma, Drizzle, Django, TypeORM, golang-migrate).
API design and implementation across REST, GraphQL, gRPC, and tRPC patterns. Use when building backend services, public APIs, or service-to-service communication. Covers REST frameworks (FastAPI, Axum, Gin, Hono), GraphQL libraries (Strawberry, async-graphql, gqlgen, Pothos), gRPC (Tonic, Connect-Go), tRPC for TypeScript, pagination strategies (cursor-based, offset-based), rate limiting, caching, versioning, and OpenAPI documentation generation. Includes frontend integration patterns for forms, tables, dashboards, and ai-chat skills.
Use when setting up user registration flows in a Bknd application. Covers registration configuration, enabling/disabling registration, default roles, password validation, registration forms, and custom fields.
Use when encountering Bknd errors, getting error messages, something not working, or needing quick fixes. Covers error code reference, quick solutions, and common mistake patterns.
Expert-level Python development with Python 3.12+ features, async/await, type hints, and modern best practices