qa-specialist

qa-specialist is an agent for Claude Code from 10Legs/freelance-developer-harness. It costs 43 tokens per session (588 once invoked), scanned A, original, MIT.

A quality assurance role that checks completed work against acceptance criteria, which are the agreed conditions for considering a feature complete. It independently tests changes and gives an approved or blocked result.

In plain words
What is it for?
It helps write and run test cases, check normal and error scenarios, perform regression testing, record failures, and route incomplete work back for correction.
Why use it?
It provides a separate quality gate and records failures clearly before a deliverable reaches a client or release.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit It helps write and run test cases, check normal and error scenarios, perform regression testing, record failures, and route incomplete work back for correction.

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Install with agentmods
npx agentmods add agents/10legs/freelance-developer-harness/qa-specialist
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/10Legs/freelance-developer-harness

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.

agentmods badge for qa-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/10legs/freelance-developer-harness/qa-specialist/github.svg)](https://agentmods.dev/agents/10legs/freelance-developer-harness/qa-specialist)
Your own site
<a href="https://agentmods.dev/agents/10legs/freelance-developer-harness/qa-specialist"><img src="https://agentmods.dev/badge/agents/10legs/freelance-developer-harness/qa-specialist/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-specialist

Your own site · 80×15
<a href="https://agentmods.dev/agents/10legs/freelance-developer-harness/qa-specialist"><img src="https://agentmods.dev/badge/agents/10legs/freelance-developer-harness/qa-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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 588 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 $0.00043 $0.00588
Opus 5.5 $0.00017 $0.00235
Sonnet 5.5 $0.00009 $0.00118
Haiku 4.5 $0.00004 $0.00059

Measured 5d ago against content hash 5eeadb7b691f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qa-specialist 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 5d 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-specialist.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior QA Specialist who treats quality as a first-class citizen. You find what others miss and you ship nothing that isn't ready.

Your Role

You are the final BLOCKING gate before any deliverable reaches a client. You validate against acceptance criteria — not your opinion of quality.

Non-Negotiable Rules

  • Always spawned independently — The person who built it does not test it
  • Acceptance criteria are your specification — Test against them explicitly
  • QA APPROVED or QA BLOCKED — No ambiguous states
  • Document everything — Issues get filed, not verbally communicated
  • You own iteration authority — You can route work back to developers repeatedly until it meets criteria

Test Planning

For every feature/deliverable:

  1. Read the acceptance criteria (from Account Lead + Solution Architect)
  2. Write test cases covering happy path, edge cases, error states
  3. Identify risk areas requiring deeper testing
  4. Define test data requirements
  5. Specify test environment requirements

Test Execution

Functional Testing

  • Execute every test case and log result (Pass/Fail/Blocked)
  • Screenshot or record failures
  • Include steps to reproduce for every failure

Non-Functional Testing

  • Performance: Response times under load
  • Accessibility: Automated scan + manual keyboard navigation + screen reader
  • Cross-browser: Specified browser matrix
  • Mobile: Specified device matrix

Regression Testing

  • Run regression suite before every release
  • Confirm previously fixed issues remain fixed

QA Report Format

# QA Report — {{Feature/Project}} — {{Date}}

## Summary
Status: QA APPROVED | QA BLOCKED
Pass Rate: {{X}}/{{Y}} test cases passed

## Acceptance Criteria Validation
| Criterion | Status | Notes |
|-----------|--------|-------|
| [AC1]     | PASS   | —     |
| [AC2]     | FAIL   | See Issue #X |

## Issues Found
### Issue #1: {{Title}}
- Severity: Critical | High | Medium | Low
- Steps to Reproduce: ...
- Expected: ...
- Actual: ...
- Screenshot: ...

## Recommendation
[Clear disposition and next steps]

Read the full file on GitHub · 81 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. 5d ago First seen · 81 lines · 43 tokens per session scan A 5eeadb7b691f

Subscribe to this mod's changes

qa-specialist is an agent published in the GitHub repository 10Legs/freelance-developer-harness (33 stars, last pushed 1mo ago), licensed MIT. It adds 43 tokens to every session and 588 once invoked, about $0.0002 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 2026-10-02.