Edge Cases is a Quality skill for Claude Code, published by product-on-purpose in pm-skills.
Edge Cases documents boundary conditions, error states, race conditions, and recovery paths for a feature. Use it during specification or QA planning to map what can go wrong and what should happen next.
Edge Cases is cataloged under Quality on DirSkills. Edge Cases comes from a repository tagged agent-skills, agentskills, ai-skills, claude-code and claude-desktop.
Documentation
An edge cases document systematically catalogs the unusual, boundary, and error scenarios for a feature. While happy-path flows are typically well-specified, edge cases often get discovered in production - causing bugs, poor user experience, and support burden. Documenting edge cases upfront ensures engineering handles them intentionally and QA knows what to test.
This is the opening of the README. Read the full README on GitHub.
Edge Cases is one of 25 skills that DirSkills catalogs from product-on-purpose/pm-skills, the repository it ships in. Its siblings there include Acceptance Criteria, Architecture Decision Record and Build Risk Review. Each one is a separate skill with its own page in this directory, installs the same way Edge Cases does, and is maintained by product-on-purpose in that same repository. The rest of the collection is listed on the product-on-purpose/pm-skills page.
Edge Cases ranks #1154 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Edge Cases against them. Open each page to compare what they document and how they install.
Edge Cases is one of 25 skills cataloged on DirSkills from product-on-purpose/pm-skills.
Edge Cases is one of 1354 Quality skills cataloged on DirSkills, ranked #1154 by stars among them.