Total 31,137 skills, Backend Development has 3055 skills
Showing 12 of 3055 skills
Implement Customer Portal for subscription self-service. Use when building account pages, letting customers manage subscriptions, update payment methods, view billing history, or when user mentions "customer portal", "帳戶管理", "訂閱管理", "更新付款方式", "self-service".
Use when modern C++ features from C++11/14/17/20 including auto, lambdas, range-based loops, structured bindings, and concepts.
DDD aggregate design patterns for consistency boundaries and invariants. Use when designing aggregate roots, enforcing business invariants, handling cross-aggregate references, or optimizing aggregate size.
FastAPI advanced patterns including lifespan, dependencies, middleware, and Pydantic settings. Use when configuring FastAPI lifespan events, creating dependency injection, building Starlette middleware, or managing async Python services with uvicorn.
RFC 9457 Problem Details for standardized HTTP API error responses. Use when implementing problem details format, structured API errors, error registries, or migrating from RFC 7807.
Strawberry GraphQL library for Python with FastAPI integration, type-safe resolvers, DataLoader patterns, and subscriptions. Use when building GraphQL APIs with Python, implementing real-time features, or creating federated schemas.
CRITICAL: Use for Matrix SDK integration with Makepad. Triggers on: Matrix SDK, sliding sync, MatrixRequest, timeline, matrix-sdk, matrix client, robrix, matrix room, Matrix 集成, 聊天客户端
This skill should be used when working with Convex actions, HTTP endpoints, validators, schemas, environment variables, scheduling, file storage, and TypeScript patterns. It provides comprehensive guidelines for function definitions, API design, database limits, and advanced Convex features.
MongoDB - NoSQL document database with flexible schema design, aggregation pipelines, indexing strategies, and Spring Data integration
Core catalog of 8 critical Elixir/Phoenix anti-patterns covering error handling, separation of concerns, Ecto queries, and testing. Trigger: During Elixir code review, refactoring sessions, or when writing Phoenix/Ecto code.
Design and implement collaborative data schemas using the Jazz framework. Use this skill when building or working with Jazz apps to define data structures using CoValues. This skill focuses exclusively on schema definition and data modeling logic.
Financial math patterns for MultiversX smart contracts — precision management, half-up rounding, safe rescaling, and percentage calculations. Use when building any DeFi contract that handles financial calculations, fees, rates, or token math.