What problem does it solve?
This Skill helps product teams systematically discover error states, boundary conditions, and recovery paths that specs and happy-path designs often miss, reducing post-launch defects and rework.
Core Features & Use Cases
- Structured Method: Applies the BOUNDARY framework (Boundaries, Outages, Unusual inputs, Network, Data, Access, Race conditions, Yesterday's assumptions) to ensure comprehensive coverage.
- Actionable Matrix Output: Produces an Edge Case Matrix with severity, expected behavior, handling recommendation, and acceptance criteria ready for issue tracking.
- Use Cases: Run after writing a PRD, before sprint planning, during QA test design, or when reviewing acceptance criteria; pair with test-scenarios to convert findings into executable tests.
Quick Start
Run an edge case analysis on the provided PRD or user story and return an Edge Case Matrix with categorized cases, severity levels, recommended handling, and acceptance criteria.