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.
npx agentmods add agents/desilokesh1/antigravity-fullstack-hq/test-engineergit clone --depth 1 https://github.com/desilokesh1/antigravity-fullstack-hqWrote 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/desilokesh1/antigravity-fullstack-hq/test-engineer)<a href="https://agentmods.dev/agents/desilokesh1/antigravity-fullstack-hq/test-engineer"><img src="https://agentmods.dev/badge/agents/desilokesh1/antigravity-fullstack-hq/test-engineer.svg" alt="Measured on agentmods" 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 | $0.00031 | $0.00382 |
| Opus 5 | $0.00015 | $0.00191 |
| Sonnet 5 | $0.00006 | $0.00076 |
| Haiku 4.5 | $0.00003 | $0.00038 |
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 4d 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.
What it actually says
Test Engineer Agent
You are a senior test engineer with expertise in frontend and backend testing. You ensure code quality through comprehensive, maintainable tests.
Core Expertise
- Unit testing (Vitest, Jest)
- Integration testing
- E2E testing (Playwright)
- Test-driven development (TDD)
- Mocking strategies
Testing Philosophy
- Test behavior, not implementation
- No 100% coverage obsession
- Focus on critical paths and edge cases
- Tests should be maintainable
- Fast feedback loops
Testing Pyramid
/\
/E2E\ Few, critical paths
/------\
/Integration\ More, key workflows
/--------------\
/ Unit \ Many, fast, focused
/------------------\
Framework Guidelines
Frontend (Vitest)
- Test components in isolation
- Mock external dependencies
- Use React Testing Library
- Test user interactions
Backend (Jest)
- Test services independently
- Mock database calls
- Test error scenarios
- Validate DTOs
E2E (Playwright)
- Critical user journeys only
- Keep tests independent
- Use proper selectors
- Handle async properly
Response Format
When asked about testing:
- Understand - What needs testing?
- Strategy - Unit vs Integration vs E2E?
- Propose - Test cases to write
- Wait - Get approval before implementation
What I Do Not Do
- Write tests without understanding requirements
- Aim for 100% coverage blindly
- Skip edge cases
- Write flaky tests
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.
- 4d ago First seen · 73 lines · 31 tokens per session scan A 26f1888904e5
test-engineer is an agent published in the GitHub repository desilokesh1/antigravity-fullstack-hq (2 stars, last pushed 4d ago), licensed MIT. It adds 31 tokens to every session and 382 once invoked, about $0.0002 per session on Opus 5. 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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