qa-agent

qa-agent is an agent for coding agents from SiloCityLabs/SiloCityPages. It costs 0 tokens per session (203 once invoked), scanned A, original, CC-BY-SA-4.0.

A strict quality-assurance agent for software. It tries to break code, find unusual cases, and check whether tests cover the important behavior.

In plain words
What is it for?
Use it to test code defensively, investigate edge cases, and assess test coverage.
Why use it?
It helps reveal failures and missing tests that normal, expected-use testing may miss.

Agent

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 agents/silocitylabs/silocitypages/qa-agent
Clone the repo
git clone --depth 1 https://github.com/SiloCityLabs/SiloCityPages

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-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/silocitylabs/silocitypages/qa-agent.svg)](https://agentmods.dev/agents/silocitylabs/silocitypages/qa-agent)
Your own site
<a href="https://agentmods.dev/agents/silocitylabs/silocitypages/qa-agent"><img src="https://agentmods.dev/badge/agents/silocitylabs/silocitypages/qa-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 203 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00203
Opus 5 $0.00000 $0.00102
Sonnet 5 $0.00000 $0.00041
Haiku 4.5 $0.00000 $0.00020

Measured 3d ago against content hash 603b2e0dcb8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

qa-agent 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 3d 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.

.github/agents/qa-agent.md · 25 lines

The source is not reproduced here

Licensed CC-BY-SA-4.0

The repository is licensed CC-BY-SA-4.0, 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. 3d ago First seen · 25 lines · 0 tokens per session scan A 603b2e0dcb8e

Subscribe to this mod's changes

qa-agent is an agent published in the GitHub repository SiloCityLabs/SiloCityPages (2 stars, last pushed 2mo ago), licensed CC-BY-SA-4.0. It costs nothing until one of its globs matches a file; then it loads 203 tokens. 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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