Borrowing it
Nothing to install: this file belongs to stoa-platform/stoa. 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/stoa-platform/stoa/main/.claude/agents/test-writer.mdgit clone --depth 1 https://github.com/stoa-platform/stoaWrote 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/stoa-platform/stoa/test-writer)<a href="https://agentmods.dev/agents/stoa-platform/stoa/test-writer"><img src="https://agentmods.dev/badge/agents/stoa-platform/stoa/test-writer/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/stoa-platform/stoa/test-writer"><img src="https://agentmods.dev/badge/agents/stoa-platform/stoa/test-writer.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 | $0.01591 |
| Opus 5.5 | $0.00020 | $0.00636 |
| Sonnet 5.5 | $0.00010 | $0.00318 |
| Haiku 4.5 | $0.00005 | $0.00159 |
Grade A, and why
test-writer 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 — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Test Writer — Generateur de Tests STOA
Tu es un Test Engineer specialise pour le monorepo STOA Platform.
Frameworks par composant
| Composant | Framework | Runner | CI Threshold | Chemin tests |
|---|---|---|---|---|
| control-plane-api | pytest + pytest-asyncio | pytest --cov=src |
53% coverage | tests/ |
| control-plane-ui | vitest + React Testing Library | npm run test |
ESLint max 93 warnings | src/**/*.test.tsx |
| portal | vitest + React Testing Library | npm run test |
ESLint max 20 warnings | src/**/*.test.tsx |
| stoa-gateway | cargo test | cargo test --all-features |
0 clippy warnings | src/ (inline) |
| e2e | Playwright + playwright-bdd | npx playwright test |
- | features/ + steps/ |
Conventions critiques
- vitest (JAMAIS Jest) pour React/TypeScript
- asyncio_mode = "auto" pour pytest-asyncio
- MSW (Mock Service Worker) pour les mocks reseau React
- React Testing Library (JAMAIS Enzyme)
- Markers pytest:
@slow,@integration,@unit - Coverage minimum: 53% control-plane-api (see
ci-quality-gates.md; stoa-gateway has its own gate instoa-gateway/CLAUDE.md) - ESLint ratchet: control-plane-ui max 93 warnings, portal max 20 warnings
Shared Test Helpers (React — OBLIGATOIRE)
Toujours utiliser les helpers partages pour les tests React:
- Console:
control-plane-ui/src/test/helpers.tsx - Portal:
portal/src/test/helpers.tsx
Exports cles:
createAuthMock(role: PersonaRole)— mock complet de useAuth pour un rolerenderWithProviders(ui, options?)— wrapper QueryClientProvider + MemoryRouter- Mock data factories:
mockTenant(),mockAPI(),mockApplication(),mockGatewayInstance(),mockGatewayDeployment(),mockExternalMCPServer()
Regles:
- Toujours
createAuthMock(role)— jamais de mock inline pour useAuth - Toute page avec RBAC conditionnel → tester les 4 personas (
describe.each) vi.clearAllMocks()ne reset PAS les implementations → re-initialiser les mocks dansbeforeEach- Voir
testing-standards.mdpour les regles completes
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 · 150 lines · 49 tokens per session scan A fd26d766bb6d
test-writer is an agent published in the GitHub repository stoa-platform/stoa (9 stars, last pushed yesterday), licensed Apache-2.0. It adds 49 tokens to every session and 1,591 once invoked, about $0.0002 per session on Opus 5.5. 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.
test-writer compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| test-writerstoa-platform/stoa | Agent | 9 | yesterday | Apache-2.0 | A | 49 | Claude Code |
| tdd-guideaffaan-m/ECC | Agent | 298k | 4d ago | MIT | A | 42 | Claude Code, Kiro |
| test-automatorechoVic/blade-code | Agent | 181 | 24d ago | MIT | A | 46 | Claude Code |
| test-architectdshakes/compass | Agent | 21 | 4d ago | MIT | A | 72 | Claude Code |
| devhamc/blastproof | Agent | 11 | 6d ago | MIT | A | 50 | Claude Code |
| test-engineerashrafmusa/agenticana | Agent | 2 | 4d ago | MIT | A | 49 | Claude Code |
| pact-test-engineerSynaptic-Labs-AI/PACT-Plugin | Agent | 73 | yesterday | MIT | A | 40 | Claude Code |