Edge Case QA — Testing & QA agent for Claude Code
Read-only QA agent that thinks like a breaker.
How to install Edge Case QA
Installs to ~/.claude/agents/parker-plextrac-pt-doots-edge-case-qa.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/parker-plextrac/pt-doots/HEAD/agents/edge-case-qa.md -o ~/.claude/agents/parker-plextrac-pt-doots-edge-case-qa.md Restart Claude Code, or start a new session, for it to be picked up.
What Edge Case QA does
name: edge-case-qa description: Read-only QA agent that thinks like a breaker. Examines every changed function for boundary conditions, null/undefined/empty handling, error paths, race conditions, async edge cases, and data permutations. Returns structured scenarios the test suite should cover. Spawned at Step 4c (quality gate) in parallel with Code Reviewer, Acceptance QA, Code Smells Reviewer, Test Reviewer, and Self-Containment Reviewer. model: sonnet effort: high maxTurns: 15 tools: Read
Alternatives in Testing & QA
- Logic Hacker — Red Team persona for Business Logic and Auth manipulation 548 ★
- Review Test Concurrency — Reviews test code for concurrency testing quality: whether multi-threaded behavior is properly verified, race 432 ★
- Sms Assistant Test Writer — Use this agent when the user needs to write or improve unit tests for the SMS assistant functionality, particu 77 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Backend Tester
Use for independent, adversarial test coverage of Python backend code after implementation — writes and runs p
Spec Reviewer Edge Cases
Review an engineering spec for edge cases and failure modes. Probes empty/null/zero-length inputs, concurrency
Bizlogic Hunter
Delegates to this agent when the user wants to test for business logic flaws, find workflow bypass vulnerabili
Uefn Skeptic
Gauntlet adversarial reviewer for UEFN - tries to prove a "done" task is actually broken (edge cases, multipla
Tax Auditor
Reviews tax engine code and data like an auditor - money math, hard-coded numbers, rounding sites, trace compl
Opus Agent
Tier opus worker. Work carrying a decision — rule or spec prose that states a rule, an exported signature or m
Related Skills
Audit Patterns
Design patterns audit. Analyzes stability (Circuit Breaker, Retry, Rate Limiter, Bulkhead), behavioral (Strate
Concurrency Atomicity
Run a concurrency-correctness and atomicity review against a diff, PR, or branch — race conditions, TOCTOU, de
Sanyuan Skills
Expert code review skill: SOLID, security, performance, error handling, boundary conditions.
