VersoXBT

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.

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

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.

Master TypeScript generics for reusable, type-safe abstractions. Use when the user works with generic constraints, conditional types, mapped types, the infer keyword, utility types, recursive types, or needs help building type-safe libraries, APIs, or data structures.

Prevent OWASP Top 10 vulnerabilities in web applications. Activate whenever the user writes API endpoints, form handlers, database queries, authentication logic, file uploads, HTML rendering, or any code that handles user input or external data. Also activate when the user asks about security, hardening, or vulnerability prevention.

Guide for Docker multi-stage builds with builder patterns, distroless and alpine base images, cache mounts, and build args. Use when the user needs to optimize Docker image size, separate build from runtime dependencies, or improve build performance. Trigger when the user mentions multi-stage, distroless, slim images, or Docker build optimization.

Guide git branching strategies, branch naming, and merge/rebase decisions. Use when the user creates branches, asks about Git Flow vs trunk-based development, discusses merge vs rebase, or is setting up a new repository's branching model.