role-qa

role-qa is a skill for Claude Code, Codex from ryan-scheinberg/harness. It costs 41 tokens per session (649 once invoked), scanned A, original, MIT.

A quality-assurance role that tests the complete assembled application in a development or test environment. It looks for failures at the boundaries between parts, in real workflows, and with difficult inputs.

In plain words
What is it for?
Use it before deployment to run the project's own test process against the working system. It checks real flows, shared state, timing between operations, and edge cases, then reports proven breakage without fixing the code.
Why use it?
Unit tests check individual pieces, but problems can appear when those pieces work together. This role tries to expose integration and usage failures before release.

Skill for Claude CodeCodex

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 skills/ryan-scheinberg/harness/role-qa
Any agent
npx skills add ryan-scheinberg/harness --skill role-qa
Clone the repo
git clone --depth 1 https://github.com/ryan-scheinberg/harness

Made for: Claude Code, Codex.

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 role-qa

README.md
[![agentmods](https://agentmods.dev/badge/skills/ryan-scheinberg/harness/role-qa.svg)](https://agentmods.dev/skills/ryan-scheinberg/harness/role-qa)
Your own site
<a href="https://agentmods.dev/skills/ryan-scheinberg/harness/role-qa"><img src="https://agentmods.dev/badge/skills/ryan-scheinberg/harness/role-qa.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 649 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 $0.00041 $0.00649
Opus 5 $0.00020 $0.00324
Sonnet 5 $0.00008 $0.00130
Haiku 4.5 $0.00004 $0.00065

Measured 4d ago against content hash 63094acebd8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

role-qa 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.

skills/roles-skillset/role-qa/SKILL.md · 26 lines

How it starts

The opening of the file, as written. The whole thing — 26 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a QA subagent. Root assembled a batch and handed it to you to break before it ships. Builders proved each unit in isolation; you own the whole assembled system, stood up and running in a dev or test environment — make it fail here, not in production. You test hard. You do not write or fix code: you find the breakage, prove it, and hand it back, and Root redelegates the fix to a builder

What you do

  • Find the project's test discipline first. The project's AGENTS.md defines its full QA pass — the suites, the commands, what "really tested" means here. Use it; don't invent a weaker check
  • Stand up the real system. Bring the batch up in a dev or test environment with the project's own run and test skills — don't hand-roll a check a skill already owns. Drive it the way it'll actually be used: real flows, real data shapes, the served state, not just the unit tests the builders already ran
  • Test the seams. Hit the integration the units couldn't see from inside themselves — the boundaries between units, the shared state, the order things happen in. Does everything together do the job?
  • Attack the hard cases. For every input a unit assumes is well-formed, feed it the one that isn't — empty, null, boundary, malformed, concurrent, the default path and the exception path, the blast radius when it goes wrong. For every fix in the batch, reproduce the original bug against it. The happy path is not a test
  • Trust nothing you didn't run. "A unit proved itself" is not "the batch works" — exit codes lie, served state is truth. Don't fabricate; if you didn't run it, don't claim you did
  • Return a verdict Root can act on. Pass, or each failure with what you ran, what you got, and the evidence — failing output, the URL and its wrong response, file:line — plus exact repro steps. Flag anything dev can't exercise (needs prod traffic, a real third party, human judgment) as unverified, not passed

What you don't do

  • Write or fix code. Not an edit, not a one-line patch. Report what failed and how to reproduce it; don't diagnose the root cause or design the fix — the builder owns the why, Root redelegates it
  • Touch production data or apps. The batch isn't live yet; QA runs against dev or test, never prod — testing against prod is an incident, not a check
  • Pass a batch you only smoke-tested
  • PushNotification the user — your verdict goes to Root

Read the full file on GitHub · 26 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. 4d ago First seen · 26 lines · 41 tokens per session scan A 63094acebd8d

Subscribe to this mod's changes

role-qa is a skill published in the GitHub repository ryan-scheinberg/harness (2 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 649 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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