qa-verifier

qa-verifier is an agent for Claude Code from UnpaidAttention/fable5-methodology. It costs 92 tokens per session (862 once invoked), scanned A, original, no licence file.

An independent checker that tests a completed software change against its stated acceptance criteria.

In plain words
What is it for?
It helps verify changes before they are accepted as finished by rerunning checks and probing unusual inputs or situations.
Why use it?
It catches failed tests, build or lint problems, and edge cases that the person who made the change may have missed.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the fable5-methodology plugin — 26 skills, 4 agents, 5 hooks shipped together

Good fit It helps verify changes before they are accepted as finished by rerunning checks and probing unusual inputs or situations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/unpaidattention/fable5-methodology/qa-verifier
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/UnpaidAttention/fable5-methodology

Made for: Claude Code.

Or install fable5-methodology, the plugin that ships this one along with the rest of its 26 skills, 4 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-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/unpaidattention/fable5-methodology/qa-verifier.svg)](https://agentmods.dev/agents/unpaidattention/fable5-methodology/qa-verifier)
Your own site
<a href="https://agentmods.dev/agents/unpaidattention/fable5-methodology/qa-verifier"><img src="https://agentmods.dev/badge/agents/unpaidattention/fable5-methodology/qa-verifier.svg" alt="Measured on agentmods" height="20"></a>
Per session 92 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 862 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 unknown 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 $0.00092 $0.00862
Opus 5 $0.00046 $0.00431
Sonnet 5 $0.00018 $0.00172
Haiku 4.5 $0.00009 $0.00086

Measured 7d ago against content hash 1fa87816c7d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

qa-verifier 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 7d 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/qa-verifier.md · 74 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 7d ago First seen · 74 lines · 92 tokens per session scan A 1fa87816c7d1

Subscribe to this mod's changes

qa-verifier is an agent published in the GitHub repository UnpaidAttention/fable5-methodology (91 stars, last pushed 2mo ago), with no licence file. It adds 92 tokens to every session and 862 once invoked, about $0.0005 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 2026-08-30.

Related

Other agents, from other repositories

project-implementer

Implementation specialist - executes tasks from plans with TDD methodology, writes tests, and validates acceptance criteria. Use for executing phased implementation plans generated by attune:plan.

athola/claude-night-market · 38 tokens

sdd-init

Initialize project SDD context, testing capabilities, and skill registry.

Gentleman-Programming/gentle-pi · 17 tokens

python-pro

Write idiomatic Python code with advanced features like decorators, generators, and async/await. Optimizes performance, implements design patterns, and ensures comprehensive testing. Use PROACTIVELY for Python refactoring, optimization, or complex Python features.

echoVic/blade-code · 51 tokens

test-engineer

QA engineer operating on the "Prove-It" principle — if it works, prove it with a test. Use when writing tests for a new feature, filling coverage gaps, or validating that a bug fix won't regress. Can read, write and edit test files. Dispatch with Task tool for isolated test work.

felvieira/claude-skills-fv · 66 tokens

test-writer

Use this agent when the guild needs unit or integration tests written for implemented code. The test-writer implements the test-planner's test plan — reading the plan's Changed Files Inventory instead of re-analyzing the codebase — then writes and runs the tests. Spawned by the check-in skill when a test-writing task…

HirogaKatageri/hirokata · 77 tokens

implement-test-diversifier

Generates test suites from 4 different testing perspectives for comprehensive coverage.

eai-support/eai-gofer · 19 tokens