qa

qa is an agent for Claude Code from kinncj/Heimdall. It costs 31 tokens per session (2,060 once invoked), scanned A, original, AGPL-3.0.

A quality-assurance agent that works in two modes: writing failing tests first, or checking the complete test suite afterward. TDD, or test-driven development, means writing a failing test before implementing the change.

In plain words
What is it for?
Create tests for expected failures, validate implementations, and apply TDD across different kinds of tests.
Why use it?
It gives test work a clear sequence and helps verify that changes pass the broader test suite.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Create tests for expected failures, validate implementations, and apply TDD across different…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/kinncj/heimdall/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/kinncj/Heimdall

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

README.md
[![agentmods](https://agentmods.dev/badge/agents/kinncj/heimdall/qa.svg)](https://agentmods.dev/agents/kinncj/heimdall/qa)
Your own site
<a href="https://agentmods.dev/agents/kinncj/heimdall/qa"><img src="https://agentmods.dev/badge/agents/kinncj/heimdall/qa.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,060 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00031 $0.02060
Opus 5 $0.00015 $0.01030
Sonnet 5 $0.00006 $0.00412
Haiku 4.5 $0.00003 $0.00206

Measured 2d ago against content hash 0cc278dfb3f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

qa scanned grade A with 1 finding 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -f http://localhost:3000/health || exit 1
.claude/agents/qa.md · 262 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 2d ago First seen · 262 lines · 31 tokens per session scan A 0cc278dfb3f5

Subscribe to this mod's changes

qa is an agent published in the GitHub repository kinncj/Heimdall (65 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 31 tokens to every session and 2,060 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.