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Performs manual testing of Story AC via executable bash scripts in tests/manual/. Use when Story implementation needs hands-on AC verification.

Use when working with error diagnostics smart debug

Build microservices - Spring Cloud, service mesh, event-driven, resilience patterns

Explains how to add and debug playwright MCP tools and CLI commands.

Expert guidelines for blockchain development including CosmWasm, Cosmos, and cross-chain patterns

Bootstraps projects to production-ready structure. Use when creating new or transforming existing projects.

Improves the quality of images, especially screenshots, by enhancing resolution, sharpness, and clarity. Perfect for preparing images for presentations,…

Configures global exception handling middleware. Use when adding centralized error handling to .NET or Python backends.

Evaluate test suite quality by introducing code mutations and verifying tests catch them. Use for mutation testing, test quality, mutant detection, Stryker, PITest, and test effectiveness analysis.

Kotlin development guidelines with best practices for clean code, naming conventions, function design, and data handling

Static Application Security Testing (SAST) for code vulnerability

使用 p5.js 创建算法艺术，支持种子随机性和交互式参数探索。当用户要求使用代码创作艺术时使用此技能，…

Deploy code to Railway using "railway up". Use when user wants to push code, says "railway up", "deploy", "ship", or "push". For initial setup or creating…

Playwright testing best practices for Next.js applications (formerly test-playwright). This skill should be used when writing, reviewing, or debugging E2E…

Expert guidance for Spring Framework and Spring Boot development with Java best practices, dependency injection, and RESTful API design

Builds all detected projects and verifies successful compilation. Use when checking that a bootstrapped project compiles.

Generates Dockerfile and docker-compose configuration for multi-container development. Use when containerizing a project.

Guidelines for building modern APIs with Koa.js and TypeScript, featuring the onion middleware model and async/await patterns

Handle cross-platform compatibility including file paths, environment detection, platform-specific dependencies, and testing across Windows, macOS, and Linux. Use when dealing with platform-specific code or OS compatibility.

Anthropic's method for training harmless AI through self-improvement. Two-phase approach - supervised learning with self-critique/revision, then RLAIF (RL from…