test-planner

What problem does it solve?

The test-planner skill removes the effort and guesswork of designing comprehensive tests for CLI commands and business modules by analyzing design documents and source code to produce actionable test plans and executable Vitest test files.

Core Features & Use Cases

• Design-driven analysis: Prioritizes docs/implement.md when present to infer intended behavior and business rules.
• Code-aware planning: Falls back to index.ts or other source files for static analysis to identify branches, edge cases, and error paths.
• Test plan generation: Produces a structured Markdown test plan covering happy paths, edge cases, and error handling.
• Test code output: Generates Vitest-compliant tests/index.test.ts files using AAA patterns and vi.mock for external dependencies.
• Refactor suggestions: Recommends exporting private functions or splitting large functions to improve testability when needed.

Quick Start

Ask the skill to analyze a command or module by providing its design document or source files and request a test plan plus Vitest test file generation.