Augmentedcode Skills

Claude Code Skills Collection

A curated collection of skills for [Claude Code](https://code.claude.com/), Anthropic's official CLI tool.

What are Skills?

Skills are specialized prompts that give Claude Code specific expertise in domains like testing, security, architecture, and more. They help Claude provide better analysis, suggestions, and automation for your development workflow.

Available Skills

Test Desiderata

Analyze and improve test code quality using Kent Beck's Test Desiderata framework.

**Use this skill when:**

• Reviewing test files
• Identifying test quality issues
• Suggesting test improvements
• Evaluating tests against best practices

**Key features:**

• Evaluates tests across 12 quality dimensions (Isolated, Composable, Deterministic, Fast, Writable, Readable, Behavioral, Structure-insensitive, Automated, Specific, Predictive, Inspiring)
• Provides concrete, actionable recommendations with code examples
• Explains tradeoffs between different testing properties
• Includes comprehensive pattern library with good/bad examples

**Location:** [`test-desiderata/`](test-desiderata/)

**Attribution:** All Test Desiderata concepts are created by Kent Beck. See [testdesiderata.com](https://testdesiderata.com/)

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Mutation Testing - JavaScript/TypeScript

Analyze JavaScript and TypeScript code using mutation testing to verify test effectiveness and find weak tests.

**Use this skill when:**

• Analyzing JavaScript/TypeScript branches for weak tests
• Verifying test effectiveness in JS/TS projects
• Strengthening test suites for Node.js applications
• Reviewing code changes to ensure tests catch potential bugs
• Integrating with Stryker for automated mutation testing

**Key features:**

• Systematic branch analysis for changed code
• Mental mutation operators (arithmetic, conditional, logical, string, array operations)
• Concrete examples showing weak vs. strong tests
• Stryker integration guidance
• Test strengthening patterns specific t