Testing & Debugging for Claude Code

QA Agent. Tests all acceptance criteria and edge cases from orchestrator-output.md. Generates a structured qa-report.md with pass/fail per criterion and bug triage. Loops back to implement if bugs found (max 2 iterations).

Expert in Ed25519 signed receipts, JCS canonicalization, hash chains, and offline verification. Use when you need to verify receipt authenticity, audit a receipt chain, detect tampering, or explain why verification failed.

Expert reverse engineer specializing in binary analysis, disassembly, decompilation, and software analysis. Masters IDA Pro, Ghidra, radare2, x64dbg, and modern RE toolchains. Handles executable analysis, library inspection, protocol extraction, and vulnerability research. Use PROACTIVELY for binary analysis, CTF challenges, security research, or understanding undocumented software.

Write idiomatic Ruby code with metaprogramming, Rails patterns, and performance optimization. Specializes in Ruby on Rails, gem development, and testing frameworks. Use PROACTIVELY for Ruby refactoring, optimization, or complex Ruby features.

Master TDD orchestrator specializing in red-green-refactor discipline, multi-agent workflow coordination, and comprehensive test-driven development practices. Enforces TDD best practices across teams with AI-assisted testing and modern frameworks. Use PROACTIVELY for TDD implementation and governance.

Master Temporal workflow orchestration with Python SDK. Implements durable workflows, saga patterns, and distributed transactions. Covers async/await, testing strategies, and production deployment. Use PROACTIVELY for workflow design, microservice orchestration, or long-running processes.

Rigorous visual validation expert specializing in UI testing, design system compliance, and accessibility verification. Masters screenshot analysis, visual regression testing, and component validation. Use PROACTIVELY to verify UI modifications have achieved their intended goals through comprehensive visual analysis.

Debugging specialist for errors, test failures, and unexpected behavior. Use proactively when encountering any issues.

Master AI-powered test automation with modern frameworks, self-healing tests, and comprehensive quality engineering. Build scalable testing strategies with advanced CI/CD integration. Use PROACTIVELY for testing automation or quality assurance.

Pre-planning consultant for requirements analysis (Opus)

Strategic Architecture & Debugging Advisor (Opus, READ-ONLY)

Root-cause analysis, regression isolation, stack trace analysis, build/compilation error resolution

Focused task executor for implementation work (Sonnet)

Interactive CLI testing specialist using tmux for session management

Test strategy, integration/e2e coverage, flaky test hardening, TDD workflows

Evidence-driven causal tracing with competing hypotheses, evidence for/against, uncertainty tracking, and next-probe recommendations

Verification strategy, evidence-based completion checks, test adequacy

Finalize / repair subagent

Expert assistant for web accessibility (WCAG 2.1/2.2), inclusive UX, and a11y testing

Use this agent when you need comprehensive accessibility testing, WCAG compliance verification, or assessment of assistive technology support. Specifically:\\n\\n<example>\\nContext: A web application is preparing for launch and needs to ensure compliance with accessibility standards before release.\\nuser: \"Can you test our web app for accessibility issues? We need to know if it works with screen readers and keyboard navigation, and if we meet WCAG standards.\"\\nassistant: \"I'll conduct a co

Use this agent when conducting comprehensive accessibility audits, WCAG 2.2 compliance assessments, or evaluating UI components and full codebases for barriers that affect users with disabilities. Invoke when you need structured findings mapped to specific WCAG criteria, hybrid automated-plus-manual coverage, and actionable remediation guidance aligned with ADA, Section 508, and the European Accessibility Act (EAA, effective June 2025).\n\n<example>\nContext: A product team is shipping a redesig

Address PR comments

Use this agent when you need to design, validate, or harden forensic audit trails for AI coding agents (Claude Code, Cursor, Codex CLI, Aider) operating in regulated environments. Focuses on tamper-evident logging, hash-chain integrity, and framework mapping for the NIST AI RMF, EU AI Act Annex IV, HIPAA, and SOC 2 CC7. Specifically:\\n\\n<example>\\nContext: A healthcare company is rolling out Claude Code to engineering teams and legal is asking what audit evidence will be produced for HIPAA au

This custom agent uses Amplitude's MCP tools to deploy new experiments inside of Amplitude, enabling seamless variant testing capabilities and rollout of product features.

API security audit specialist. Use PROACTIVELY for REST API security audits, authentication vulnerabilities, authorization flaws, injection attacks, and compliance validation.

Expert agent for integrating Apify Actors into codebases. Handles Actor selection, workflow design, implementation across JavaScript/TypeScript and Python, testing, and production-ready deployment. Use proactively whenever the user wants to scrape a website, automate a browser task, or wire an Apify Actor into their app.

Executes structured workflows (Debug, Express, Main, Loop) with strict correctness and maintainability. Enforces an improved tool usage policy, never assumes facts, prioritizes reproducible solutions, self-correction, and edge-case handling.

Executes structured workflows with strict correctness and maintainability. Enforces a minimal tool usage policy, never assumes facts, prioritizes reproducible solutions, self-correction, and edge-case handling.

Write efficient C code with proper memory management, pointer arithmetic, and system calls. Handles embedded systems, kernel modules, and performance-critical code. Use PROACTIVELY for C optimization, memory issues, or system programming.

Use this agent when you need to design and execute controlled failure experiments, validate system resilience before incidents occur, or conduct game day exercises to test your team's incident response capabilities. Specifically:\\n\\n<example>\\nContext: A microservices platform has recently experienced two unexpected service failures that took 2 hours to recover from. Leadership wants confidence that the system won't fail again without warning.\\nuser: \"We need to test if our system can handl

Use this agent when building ASP.NET Core web APIs, cloud-native .NET solutions, or modern C# applications requiring async patterns, dependency injection, Entity Framework optimization, and clean architecture. Specifically:\\n\\n<example>\\nContext: Building a production ASP.NET Core REST API with database integration, authentication, and comprehensive testing.\\nuser: \"I need to create an ASP.NET Core 8 API with EF Core, JWT authentication, Swagger documentation, and 85%+ test coverage. Should

Expert assistant for developing Model Context Protocol (MCP) servers in C#

An agent designed to assist with software development tasks for .NET projects.

Debug your application to find and fix a bug

Use this agent when you need to diagnose and fix bugs, identify root causes of failures, or analyze error logs and stack traces to resolve issues. Specifically:\n\n<example>\nContext: Application is crashing intermittently with a null pointer exception in production.\nuser: \"Our payment service keeps crashing with NullPointerException in the transaction handler. We have crash logs but can't reproduce it locally. Can you debug this?\"\nassistant: \"I'll use the debugger agent to analyze your cra

Use when actively responding to production incidents, diagnosing critical service failures, or conducting incident postmortems to implement permanent fixes and preventative measures. Specifically:\\n\\n<example>\\nContext: A critical database service has gone down, causing customer-facing API timeouts. The on-call engineer needs immediate help triaging impact and determining next steps.\\nuser: \"We're getting spiked error rates on our API - database connection timeouts appearing 2 minutes ago.

Production troubleshooting and incident response specialist. Use PROACTIVELY for debugging issues, log analysis, deployment failures, monitoring setup, and root cause analysis.

Expert agent for creating unit tests for java applications using Diffblue Cover.