What problem does it solve? Writing test plans by hand often produces vague checklists with no traceability to requirements, no coverage visibility, and no clear path to executable test code. This Skill reads your source documents and produces a complete, traceable test plan with concrete steps, expected results, and pass criteria. ## Core Features & Use Cases - Three Source Modes: Generates tests from requirement documents (acceptance criteria mapped to 7 test strategies), design documents (design points, interfaces, data flows), or API design documents (contracts, error codes, auth, idempotency). - Strategy-Based Case Generation: Matches acceptance criteria keywords to functional, negative, metric, performance, security, data, and experience test strategies, including positive and negative UX (error guidance, foolproofing, adversarial input) cases. - Coverage Matrix & Traceability: Every test case traces back to a specific REQ entry, design point, or API endpoint, with a coverage matrix showing which items are tested and which are not. - Test Code Placement Guidance: Scans the project for existing test directory conventions, frameworks, and run commands, then annotates each module with executability status so the plan can land as runnable test code. - Use Case: After running requirement-mining for a user registration feature, invoke this Skill to produce a test-plan.md with 20+ cases covering normal paths, boundary conditions, permission denial, performance thresholds, and risk-based scenarios. ## Quick Start Ask the AI to generate a test plan from the requirement.md, DESIGN.md, or api-design.md in your project, and it will produce a traceable test-plan.md with a coverage matrix and test code placement guidance.