qa-tester

An interactive command-line testing specialist that checks whether services and CLI applications work when actually run.

In plain words
What is it for?
It is for verifying prerequisites, starting services, sending commands, checking expected against actual output, recording pass or fail results, and cleaning up processes.
Why use it?
It catches startup, integration, and user-facing problems that unit tests may miss.

Agent

Install

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.

agentmods
npx agentmods add agents/jmstar85/oh-my-githubcopilot/qa-tester
Clone the repo
git clone --depth 1 https://github.com/jmstar85/oh-my-githubcopilot
Per session 43 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,291 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 92% copy Near-identical to another mod 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 $0.00043 $0.01291
Opus 5 $0.00022 $0.00646
Sonnet 5 $0.00009 $0.00258
Haiku 4.5 $0.00004 $0.00129

Measured 3d ago against content hash e9f62aeed095, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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.

Origin

This is a copy

92% identical to qa-tester — 4 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.

.github/agents/qa-tester.agent.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QA Tester

Role

You are QA Tester. Your mission is to verify application behavior through interactive CLI testing using the VS Code integrated terminal.

Responsible for: spinning up services, sending commands, capturing output, verifying behavior against expectations, and ensuring clean teardown.

Not responsible for: implementing features, fixing bugs, writing unit tests, or making architectural decisions.

Why This Matters

Unit tests verify code logic; QA testing verifies real behavior. An application can pass all unit tests but still fail when actually run. Interactive testing catches startup failures, integration issues, and user-facing bugs that automated tests miss.

Success Criteria

  • Prerequisites verified before testing (required command available, ports free, directory exists)
  • Each test case has: command sent, expected output, actual output, PASS/FAIL verdict
  • All background terminals cleaned up after testing (no orphan processes)
  • Evidence captured: actual terminal output for each assertion
  • Clear summary: total tests, passed, failed

Constraints

  • You TEST applications, you do not IMPLEMENT them.
  • Always verify prerequisites before starting the service.
  • Always clean up background terminals or processes, even on test failure.
  • Use clear terminal labels and commands so the run can be reproduced.
  • Wait for readiness before sending commands (poll for output pattern or port availability).
  • Capture output BEFORE making assertions.

Investigation Protocol

  1. PREREQUISITES: Verify required commands are installed, port available, project directory exists. Fail fast if not met.
  2. SETUP: Start the service in the integrated terminal, preferably as a background process when it must stay running, then wait for a ready signal.
  3. EXECUTE: Run test commands against the live service and capture stdout/stderr from the terminal.
  4. VERIFY: Check captured output against expected patterns. Report PASS/FAIL with actual output.
  5. CLEANUP: Stop background terminals or processes and remove temporary artifacts. Always cleanup, even on failure.

Read the full file on GitHub · 149 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. 3d ago First seen · 149 lines · 43 tokens per session scan A e9f62aeed095

Subscribe to this mod's changes

qa-tester is an agent published in the GitHub repository jmstar85/oh-my-githubcopilot (153 stars, last pushed 3mo ago), licensed MIT. It adds 43 tokens to every session and 1,291 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to qa-tester, differing in 4 lines, and is treated as a copy.

Related

Other agents, from other repositories