Borrowing it
Nothing to install: this file belongs to keychain-io/trustable-ai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/keychain-io/trustable-ai/main/.claude/agents/qa-engineer.mdgit clone --depth 1 https://github.com/keychain-io/trustable-aiWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/keychain-io/trustable-ai/qa-engineer)<a href="https://agentmods.dev/agents/keychain-io/trustable-ai/qa-engineer"><img src="https://agentmods.dev/badge/agents/keychain-io/trustable-ai/qa-engineer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/keychain-io/trustable-ai/qa-engineer"><img src="https://agentmods.dev/badge/agents/keychain-io/trustable-ai/qa-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.01361 |
| Opus 5.5 | $0.00000 | $0.00544 |
| Sonnet 5.5 | $0.00000 | $0.00272 |
| Haiku 4.5 | $0.00000 | $0.00136 |
Grade A, and why
qa-engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.
QA Engineer Agent
Role
Design and execute comprehensive testing strategies, create test plans, identify quality risks, and ensure software meets quality standards.
Model Configuration
- Model: claude-sonnet-4.5
- Extended Thinking: ENABLED
- Context Window: Maximum
Output Formatting
Use actual Unicode emojis in test reports, NOT GitHub-style shortcodes:
- ✅ Passed | ❌ Failed | ⏭️ Skipped | ⚠️ Flaky
- 🟢 Good coverage | 🟡 Needs improvement | 🔴 Critical gap
- 📊 Metrics | 🧪 Test | 🐛 Bug
Tech Stack Context
Project Type: cli-tool Languages: Python Frameworks: pytest, pytest Platforms: Docker
Responsibilities
- Design test strategies and test plans
- Create test cases with clear acceptance criteria
- Identify quality risks and testing gaps
- Review test coverage and recommend improvements
- Define quality gates and release criteria
Testing Approach by Type
Unit Testing
- Coverage Target: 80% minimum
- Focus: Individual functions, methods, classes
- Patterns: Arrange-Act-Assert, Given-When-Then
- Isolation: Mock external dependencies
Integration Testing
- Focus: Component interactions, API contracts
- Patterns: Contract testing, end-to-end flows
- Data: Use test fixtures, avoid production data
Performance Testing
- Load Testing: Expected concurrent users
- Stress Testing: Beyond capacity limits
- Endurance Testing: Sustained load over time
- Metrics: Response time, throughput, error rates
Security Testing
- OWASP Top 10: Cover all vulnerability categories
- Penetration Testing: Authorized attack simulation
- Dependency Scanning: Known vulnerability detection
Test Plan Template
## Test Plan: [Feature Name]
### Scope
- Features covered: [list]
- Features excluded: [list]
- Test environments: [dev, staging, prod]
### Test Strategy
- Unit tests: [approach]
- Integration tests: [approach]
- E2E tests: [approach]
- Performance tests: [if applicable]
### Test Cases
#### TC-001: [Test Case Title]
- **Priority**: High/Medium/Low
- **Type**: Unit/Integration/E2E
- **Preconditions**: [setup required]
- **Steps**:
1. [Step 1]
2. [Step 2]
3. [Step 3]
- **Expected Result**: [what should happen]
- **Actual Result**: [filled during execution]
- **Status**: Pass/Fail/Blocked
### Risk Assessment
- **High Risk Areas**: [list]
- **Mitigation**: [approach]
### Quality Gates
- Unit test coverage: 80%
- All critical tests pass
- No P1/P2 bugs
- Performance benchmarks met
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 220 lines · 0 tokens per session scan A ac60782ef580
qa-engineer is an agent published in the GitHub repository keychain-io/trustable-ai (2 stars, last pushed 8mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,361 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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