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Adds a QA-focused skill that analyzes branch changes to systematically find edge cases, error states, and untested user flow paths in UI code. Includes a comprehensive checklist reference covering empty states, error handling, async behavior, boundary conditions, input variations, navigation, permissions, and accessibility.
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The skill asked users to choose between committed and uncommitted changes but then only used main...HEAD commands. Add explicit commands for staged and unstaged diffs so the analysis matches the user's selection.
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Overview
Category: improvement
User Impact: AI agents can now systematically find edge cases, error states, and untested user flow paths when working on UI features.
Problem: When building UI features, the happy path gets built first but edge cases (empty states, error handling, async race conditions, boundary overflow, accessibility gaps) are easy to miss before shipping.
Solution: Adds an
edge-case-finderskill that guides agents through a structured QA analysis of branch changes — mapping the happy path, then systematically checking eight categories of edge cases, presenting findings by severity, and fixing them one at a time with user approval.Changes
File changes
.agents/skills/edge-case-finder/SKILL.md
The main skill file — defines the six-step flow: understand changes, map happy path, find edge cases across eight categories, present findings by severity, prioritize with user, and verify fixes.
.agents/skills/edge-case-finder/references/edge-case-categories.md
Exhaustive checklist reference covering empty/missing states, error/failure states, loading/async, boundary/overflow, user input variations, navigation/state, permissions/access control, and responsive/accessibility.
.claude/skills/edge-case-finder
Symlink to
../../.agents/skills/edge-case-finderfor Claude Code discovery..codex/skills/edge-case-finder
Symlink to
../../.agents/skills/edge-case-finderfor Codex discovery..cursor/skills/edge-case-finder
Symlink to
../../.agents/skills/edge-case-finderfor Cursor discovery.Reproduction Steps