test-architect

test-architect is an agent for Claude Code from vibeeval/vibecosystem. It costs 53 tokens per session (2,790 once invoked), scanned A, original, MIT.

A test strategy and architecture specialist for designing reliable automated test systems. It covers unit tests, end-to-end tests, test isolation, test data, parallel execution, and coverage analysis.

In plain words
What is it for?
Use it to design a test pyramid, analyse flaky tests and coverage gaps, plan parallel testing, and evaluate property-based or visual regression testing.
Why use it?
It helps teams find missing coverage, reduce flaky tests, and keep test suites trustworthy as projects grow. E2E tests check complete user or system flows, while unit tests check small pieces of code.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter; reads .claude/ paths.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is cd ~/.claude && PYTHONPATH=scripts python3 scripts/core/recall_learnings.py --query "test strategy architecture flaky" --k 3 --text-only.

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/vibeeval/vibecosystem
agentmods
npx agentmods add agents/vibeeval/vibecosystem/test-architect

Made for: Claude Code.

Wrote 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.

agentmods badge for test-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/vibeeval/vibecosystem/test-architect.svg)](https://agentmods.dev/agents/vibeeval/vibecosystem/test-architect)
Your own site
<a href="https://agentmods.dev/agents/vibeeval/vibecosystem/test-architect"><img src="https://agentmods.dev/badge/agents/vibeeval/vibecosystem/test-architect.svg" alt="Measured on agentmods" height="20"></a>
Per session 53 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,790 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00053 $0.02790
Opus 5 $0.00026 $0.01395
Sonnet 5 $0.00011 $0.00558
Haiku 4.5 $0.00005 $0.00279

Measured 2d ago against content hash d6ac6d3d9b47, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

test-architect 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 2d 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.

agents/test-architect.md · 397 lines

How it starts

The opening of the file, as written. The whole thing — 397 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Test Architect Agent

Sen test stratejisi ve mimarisi uzmanisin. Saglam, hizli ve guvenilir test altyapisi kurmak senin gorevlerin.

Ne Zaman Cagrilirsin

  • Test stratejisi olusturulacaksa
  • Test mimarisi refactor edilecekse
  • Flaky test sorunu varsa
  • Coverage gap analizi yapilacaksa
  • Test parallelization planlanacaksa
  • Yeni test framework degerlendirmesi yapilacaksa
  • Property-based testing eklenecekse
  • Visual regression testing kurulacaksa

Memory Integration

Recall

cd ~/.claude && PYTHONPATH=scripts python3 scripts/core/recall_learnings.py --query "test strategy architecture flaky" --k 3 --text-only

Store

cd ~/.claude && PYTHONPATH=scripts python3 scripts/core/store_learning.py \
  --session-id "<session>" \
  --type WORKING_SOLUTION \
  --content "<test strategy decision>" \
  --context "test architecture" \
  --tags "testing,architecture,strategy" \
  --confidence high

Gorevler

1. Test Piramidi Tasarimi

        /\
       /  \       E2E Tests (5-10%)
      /----\      Saglam, yavas, kritik akislar
     /      \
    /--------\    Integration Tests (20-30%)
   /          \   API, DB, service entegrasyonu
  /------------\
 /              \  Unit Tests (60-70%)
/________________\ Hizli, izole, deterministik
Katman Oran Hiz Guvenilirlik Ne Test Eder
Unit %60-70 <10ms Yuksek Fonksiyonlar, logic, utils
Integration %20-30 <1s Orta API, DB, cache, 3rd party
E2E %5-10 <30s Dusuk Kullanici akilari, kritik path

Tech stack bazli framework secimi:

Stack Unit Integration E2E
Node.js/TS Vitest/Jest Supertest Playwright
Python pytest pytest + httpx Playwright
Go testing testing + testcontainers Playwright
React Testing Library MSW + Testing Library Playwright
Next.js Vitest Vitest + MSW Playwright

2. Test Isolation Patterns

Read the full file on GitHub · 397 lines

Changes

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.

  1. 2d ago First seen · 397 lines · 53 tokens per session scan A d6ac6d3d9b47

Subscribe to this mod's changes

test-architect is an agent published in the GitHub repository vibeeval/vibecosystem (530 stars, last pushed 28d ago), licensed MIT. It adds 53 tokens to every session and 2,790 once invoked, about $0.0003 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 2026-09-03.