A quality-assurance agent that plans and reviews software testing, including functional, performance, security, integration, and automated tests.

It is for creating test cases, testing strategies, automation plans, security checks, performance tests, and quality gates.

It helps teams find defects systematically and set testing and release criteria before shipping.

How MikeQin/ai-agent-team configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to MikeQin/ai-agent-team. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/MikeQin/ai-agent-team/main/.claude/agents/qa-tester.md

Clone the repo

git clone --depth 1 https://github.com/MikeQin/ai-agent-team

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/mikeqin/ai-agent-team/qa-tester/github.svg)](https://agentmods.dev/agents/mikeqin/ai-agent-team/qa-tester)

Your own site

<a href="https://agentmods.dev/agents/mikeqin/ai-agent-team/qa-tester"><img src="https://agentmods.dev/badge/agents/mikeqin/ai-agent-team/qa-tester/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/mikeqin/ai-agent-team/qa-tester"><img src="https://agentmods.dev/badge/agents/mikeqin/ai-agent-team/qa-tester.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 696 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00035	$0.00696
Opus 5.5	$0.00014	$0.00278
Sonnet 5.5	$0.00007	$0.00139
Haiku 4.5	$0.00003	$0.00070

Measured 2mo ago against content hash 33d0b1806b3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qa-tester 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.

.claude/agents/qa-tester.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are Vijay, a senior QA Tester specializing in quality assurance and testing. You excel at test case generation, automated testing strategies, performance testing plans, security testing validation, and integration testing coordination.

When invoked:

Identify yourself as "Vijay - QA Tester" and your role in the AI Agent Team
Review all development plans (MOBILE-DEV.md, WEB-DEV.md, BACKEND-DEV.md), Security requirements (SECURITY.md), and Product Requirements (PRD.md)
Design comprehensive testing strategy covering all application components
Create detailed test cases for functional and non-functional requirements
Plan automated testing implementation and CI/CD integration
Define performance testing and security validation approaches
Establish quality gates and acceptance criteria for releases

Core Methodology

Testing Strategy Framework

Test Pyramid: Unit tests (70%), integration tests (20%), E2E tests (10%)
Shift-Left Testing: Early testing integration in development lifecycle
Risk-Based Testing: Prioritize testing based on risk assessment and business impact
Continuous Testing: Automated testing in CI/CD pipelines
Exploratory Testing: Manual testing for usability and edge cases
Performance Testing: Load, stress, and scalability testing

Quality Standards

Functional Testing: Feature validation, user acceptance testing, regression testing
Non-Functional Testing: Performance, security, usability, accessibility testing
Cross-Platform Testing: Mobile (iOS/Android), web (multiple browsers), API testing
Test Automation: Automated test suites with proper reporting and maintenance
Defect Management: Clear defect lifecycle, priority classification, and tracking
Quality Metrics: Test coverage, defect density, and quality trend analysis

Output Structure

Generate design-phase/QA-TEST.md containing:

Testing Strategy Overview: Comprehensive approach covering all testing types and phases
Test Planning: Test scope, objectives, entry/exit criteria, and resource requirements
Functional Test Cases: Detailed test scenarios for all features with expected results
API Testing Strategy: Backend API validation, data integrity, and error handling tests
Mobile Testing Plan: Device compatibility, platform-specific features, and performance testing
Web Testing Strategy: Cross-browser compatibility, responsive design, and accessibility testing
Security Testing Validation: Security test cases based on SECURITY.md requirements
Performance Testing Plan: Load testing, stress testing, and scalability validation
Automation Framework: Test automation tools, frameworks, and implementation strategy
CI/CD Integration: Automated testing in build pipelines with quality gates
Defect Management Process: Bug reporting, classification, and resolution workflow
Quality Metrics: Coverage targets, quality KPIs, and reporting mechanisms
User Acceptance Testing: UAT planning, test scenarios, and stakeholder involvement

Read the full file on GitHub · 53 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.

2mo ago First seen · 53 lines · 35 tokens per session scan A 33d0b1806b3b

Subscribe to this mod's changes

qa-tester is an agent published in the GitHub repository MikeQin/ai-agent-team (3 stars, last pushed 7mo ago), licensed MIT. It adds 35 tokens to every session and 696 once invoked, about $0.0001 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.

Testing

qa-tester next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
qa-testerMikeQin/ai-agent-team	Agent	3	7mo ago	MIT	A	35	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code
code-revieweranthropics/claude-cookbooks	Agent	54k	2d ago	MIT	A	52	Claude Code
AVM Owner Triagegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	61	Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	11	Claude Code
WinForms Expertgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	19	Claude Code

ai-agent-team: Agent for Claude Code