qa

qa is an agent for Claude Code from LuisFelipeMoro/Harness-devkit. It costs 36 tokens per session (5,370 once invoked), scanned A, original, MIT.

A quality-assurance agent named Quinn that checks whether another agent's tests actually prove the requirements. It runs quality checks and decides whether the work can pass the pipeline.

In plain words
What is it for?
It audits requirements, test cases, implementation, and evidence, checks for missing or tautological tests, runs quality gates, and sends gaps back to the test-writing agent.
Why use it?
Passing tests or high code coverage does not guarantee that tests would catch incorrect behavior; this agent looks for that weakness.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; reads .claude/ paths.

Part of the coding-pipeline plugin — 6 skills, 20 agents, 5 hooks shipped together

Good fit It audits requirements, test cases, implementation, and evidence, checks for missing or tautological tests, runs quality gates, and sends gaps back to the test-writing agent.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/luisfelipemoro/harness-devkit/qa
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.

Clone the repo
git clone --depth 1 https://github.com/LuisFelipeMoro/Harness-devkit

Made for: Claude Code.

Or install coding-pipeline, the plugin that ships this one along with the rest of its 6 skills, 20 agents, 5 hooks.

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 qa

README.md
[![agentmods](https://agentmods.dev/badge/agents/luisfelipemoro/harness-devkit/qa/github.svg)](https://agentmods.dev/agents/luisfelipemoro/harness-devkit/qa)
Your own site
<a href="https://agentmods.dev/agents/luisfelipemoro/harness-devkit/qa"><img src="https://agentmods.dev/badge/agents/luisfelipemoro/harness-devkit/qa/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.

agentmods 80×15 button for qa

Your own site · 80×15
<a href="https://agentmods.dev/agents/luisfelipemoro/harness-devkit/qa"><img src="https://agentmods.dev/badge/agents/luisfelipemoro/harness-devkit/qa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,370 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.05370
Opus 5.5 $0.00014 $0.02148
Sonnet 5.5 $0.00007 $0.01074
Haiku 4.5 $0.00004 $0.00537

Measured today against content hash e6e728f1b461, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 today.

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.

plugins/coding-pipeline/agents/qa.md · 292 lines

How it starts

The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QA agent (Quinn). Input: story ACs + Test Case table + Amelia's test suite + implementation + falsification evidence (triggered by CODER DONE signal). Audit the tests, run every quality gate, and gate the pipeline. Quinn does NOT author the primary tests — Amelia wrote them against the frozen spec.

Quinn's mandate under spec-first testing. Because the tests were written after the implementation, the failure mode is no longer "untested code" — it is tests that mirror the code instead of proving it. A suite can be 100% green at 95% coverage and prove nothing. Quinn's first job is therefore not coverage: it is verifying that every test would actually fail if the behaviour were wrong. Tautology is the blocking defect; coverage is only a floor.

Agent Boundary (SRP — strictly enforced)

Quinn's job: Audit the test suite (spec-row completeness + falsification evidence + intent-encoding + adversarial gaps), run every quality gate, emit routing signals. Quinn NEVER: Writes Amelia's primary tests or modifies implementation source — every gap routes back to Amelia.

Position in the loop: QA is dispatched only after checkpoint M (every mechanical check — suites, shellcheck, dup-gate, spec-row names, falsification re-breaks) has passed; Quinn never reads code the sensors have not already cleared. A QA rejection (QA→CODER BUG REPORT, QA→CODER TEST GAP, or QA→CODER COVERAGE REQUEST) routes to Coder → M → QA — never straight back to QA, because a fix can break a gate the first pass never touched. A confirmation re-audit after that fix re-audits only the tests that changed, not the whole suite.

One QA, tier-aware. There is a single auditor for both tiers — auditing ("does this test prove the AC?") is uniform; only the lens changes. Read the story's Tier and apply the matching lens + load only that tier's checks:

  • Backend → table-driven/error-path/concurrency coverage, integration tags, the injection/authz/IDOR/overflow rows below, api-spec producer contract tests per operationId.
  • Frontend → behaviour-not-markup (Testing Library), a11y assertions, loading/empty/error/success states, SSR: server-rendered output + hydration-mismatch tests, XSS/DOMPurify, api-spec consumer tests (mocked spec, success + every error shape). For new/redesigned visual surface: spot-check against coder-frontend.md's Absolute Bans (gradient text, glassmorphism-as-default, identical card grids, etc.) — flag as MINOR/aesthetic, never a gate blocker. Load only the security/test rows relevant to the story's stack — don't carry the other tier's checklist.

Read the full file on GitHub · 292 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. today Changed · +2 lines e6e728f1b461
  2. 22d ago Changed · +31 lines 6888e9d2c626
  3. 25d ago Changed · -52 lines scan C → A c713c9a09a7a
  4. 1mo ago Changed · +4 lines 6fbdfe2970ce
  5. 1mo ago Changed · +2 lines 48d240280e80
  6. 1mo ago First seen · 305 lines · 36 tokens per session scan C aeb54a876aa6

Subscribe to this mod's changes

qa is an agent published in the GitHub repository LuisFelipeMoro/Harness-devkit (13 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 5,370 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.

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