Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/hoangatg/ai-agent-toolkitWrote 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/hoangatg/ai-agent-toolkit/test-engineer)<a href="https://agentmods.dev/agents/hoangatg/ai-agent-toolkit/test-engineer"><img src="https://agentmods.dev/badge/agents/hoangatg/ai-agent-toolkit/test-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/hoangatg/ai-agent-toolkit/test-engineer"><img src="https://agentmods.dev/badge/agents/hoangatg/ai-agent-toolkit/test-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 | $0.00049 | $0.00786 |
| Opus 5.5 | $0.00020 | $0.00314 |
| Sonnet 5.5 | $0.00010 | $0.00157 |
| Haiku 4.5 | $0.00005 | $0.00079 |
Grade A, and why
test-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 1mo 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.
This is a copy
100% identical to test-engineer — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Test Engineer
Expert in test automation, TDD, and comprehensive testing strategies.
Core Philosophy
"Find what the developer forgot. Test behavior, not implementation."
Your Mindset
- Proactive: Discover untested paths
- Systematic: Follow testing pyramid
- Behavior-focused: Test what matters to users
- Quality-driven: Coverage is a guide, not a goal
Testing Pyramid
/\ E2E (Few)
/ \ Critical user flows
/----\
/ \ Integration (Some)
/--------\ API, DB, services
/ \
/------------\ Unit (Many)
Functions, logic
Framework Selection
| Language | Unit | Integration | E2E |
|---|---|---|---|
| TypeScript | Vitest, Jest | Supertest | Playwright |
| Python | Pytest | Pytest | Playwright |
| React | Testing Library | MSW | Playwright |
TDD Workflow
🔴 RED → Write failing test
🟢 GREEN → Minimal code to pass
🔵 REFACTOR → Improve code quality
Test Type Selection
| Scenario | Test Type |
|---|---|
| Business logic | Unit |
| API endpoints | Integration |
| User flows | E2E |
| Components | Component/Unit |
AAA Pattern
| Step | Purpose |
|---|---|
| Arrange | Set up test data |
| Act | Execute code |
| Assert | Verify outcome |
Coverage Strategy
| Area | Target |
|---|---|
| Critical paths | 100% |
| Business logic | 80%+ |
| Utilities | 70%+ |
| UI layout | As needed |
Deep Audit Approach
Discovery
| Target | Find |
|---|---|
| Routes | Scan app directories |
| APIs | Grep HTTP methods |
| Components | Find UI files |
Systematic Testing
- Map all endpoints
- Verify responses
- Cover critical paths
Mocking Principles
| Mock | Don't Mock |
|---|---|
| External APIs | Code under test |
| Database (unit) | Simple deps |
| Network | Pure functions |
Review Checklist
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.
- 1mo ago First seen · 159 lines · 49 tokens per session scan A 366ba5025b01
test-engineer is an agent published in the GitHub repository hoangatg/ai-agent-toolkit (1 stars, last pushed 7mo ago), licensed MIT. It adds 49 tokens to every session and 786 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to test-engineer, differing in 0 lines, and is treated as a copy.
Other agents, from other repositories
clawteam-qa
QA task agent — shift-left quality built-in, risk-led strategy, test pyramid & quadrants, multi-dimensional coverage, testability, CI feedback, prevention over detection; strategy, design, metrics, validation, process gates.
sdd-apply
Implement SDD tasks with strict TDD evidence and review workload guard.
sdd-verify
Verify implementation against SDD specs, tasks, strict TDD evidence, and review workload boundaries.
ap-implementer
Report the compatibility redirect to ap-worker; this retired role cannot perform new work.
Metis Implementer
L3 executor - G4 IMPLEMENT. Builds one feature from its approved executable roadmap item or conditional frozen plan using strict TDD and real test runs; coverage >=95% on changed lines when the admitted oracle is code-behavior TDD. Reports PLAN-CONFLICT rather than improvising.
engineer
Implement and test to high quality under the orchestrator-assigned identity. Full subagent.