Explorar skills

Apply structured debugging techniques to find and fix bugs efficiently. Use when the user reports a bug, encounters unexpected behavior, says something is "not working", or asks for help debugging. Apply hypothesis-driven debugging instead of random changes.

Express.js error handling patterns including async error catching, custom error classes, centralized error middleware, and the distinction between operational and programmer errors. Use when the user is handling errors in Express, writing async route handlers, creating custom error types, or debugging unhandled rejections. Trigger on mentions of Express error handling, async errors, error middlewa

Spring Boot patterns including stereotype annotations, dependency injection, profiles, configuration properties, and actuator endpoints. Use when the user is building Spring Boot applications, configuring dependency injection, setting up profiles for different environments, using @ConfigurationProperties, or enabling actuator health checks. Trigger on any mention of Spring Boot, @Component, @Servi

Guide for optimizing SQL queries with EXPLAIN ANALYZE, index tuning, N+1 detection, covering indexes, and query plan analysis. Use when the user has slow database queries, asks about query performance, needs to interpret EXPLAIN output, or wants to eliminate N+1 queries. Trigger whenever query performance, slow queries, or database optimization is discussed.

Revisa a acessibilidade durante a fase de design, tratando-a como um desafio artesanal em vez de uma auditoria de conformidade. Use ao projetar, descrever ou construir componentes de UI, ou ao discutir estados de componentes, interações ou comportamento de teclado.

Express middleware chain patterns including auth middleware, error middleware, rate limiting, CORS configuration, and request validation. Use when the user is building Express.js APIs, configuring middleware, implementing authentication guards, adding rate limiting, or setting up CORS. Trigger on any mention of Express middleware, request pipeline, auth guards, rate limiting, or Express CORS.

Ready-to-use hook recipes for common Claude Code automation: prettier on edit, tsc check, console.log warning, git push review, doc blocker. Use when the user wants a specific hook example, asks "how do I auto-format" or "block markdown creation", or needs a hook for a common development workflow.

RESTful API design conventions for Node.js including resource naming, pagination, filtering, sorting, HATEOAS links, versioning, and content negotiation. Use when the user is designing REST APIs, asking about pagination or filtering patterns, implementing API versioning, or building CRUD endpoints. Trigger on mentions of REST API design, API pagination, query parameters, HATEOAS, API versioning, o

Enforce conventional commits format with proper types, scopes, and breaking change notation. Use when the user is committing code, writing commit messages, asks about commit format, or when you are about to create a git commit. Always apply this skill before running git commit.

JUnit 5 testing patterns including annotations, Mockito mocking, Spring Boot test slices, MockMvc, Testcontainers integration, and parameterized tests. Use when the user is writing Java tests, setting up test infrastructure, mocking dependencies, testing Spring controllers, or running integration tests with real databases. Trigger on any mention of JUnit, Mockito, @SpringBootTest, MockMvc, Testcon

Use when building interactive 2D or 3D graph or network visualizations in React with the reagraph library (GraphCanvas, node-link diagrams, force-directed layouts). Covers data shapes (GraphNode, GraphEdge), 16 layout algorithms, selection, lasso, camera controls, sizing strategies, and theming.

Apply idiomatic Python patterns: list comprehensions, generators, context managers, decorators, dataclasses, walrus operator, and unpacking. Use when the user writes Python code, asks for Pythonic idioms, refactors Python, or mentions any of these patterns. Trigger proactively when you see non-idiomatic Python.