argus: Skill for Claude Code

.claude/skills/hera-review-test-adversary/SKILL.md

hera-review-test-adversary is a skill for Claude Code from drn/argus. It costs 152 tokens per session (1,350 once invoked), scanned A, original, no licence file.

A code-review check that examines tests changed by a code diff for false confidence.

In plain words
What is it for?
Use it to question whether new or modified tests meaningfully test the code they cover.
Why use it?
A passing test run does not prove that the tests check the right behavior or catch likely failures.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is drn/argus's own configuration. It tells Claude Code how to work on argus itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything argus configures →

View source ↗ drn/argus
Reuse

Borrowing it

Nothing to install: this file belongs to drn/argus. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/drn/argus/master/.claude/skills/hera-review-test-adversary/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/drn/argus

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 hera-review-test-adversary

README.md
[![agentmods](https://agentmods.dev/badge/skills/drn/argus/hera-review-test-adversary/github.svg)](https://agentmods.dev/skills/drn/argus/hera-review-test-adversary)
Your own site
<a href="https://agentmods.dev/skills/drn/argus/hera-review-test-adversary"><img src="https://agentmods.dev/badge/skills/drn/argus/hera-review-test-adversary/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 hera-review-test-adversary

Your own site · 80×15
<a href="https://agentmods.dev/skills/drn/argus/hera-review-test-adversary"><img src="https://agentmods.dev/badge/skills/drn/argus/hera-review-test-adversary.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 152 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,350 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 $0.00152 $0.01350
Opus 5 $0.00076 $0.00675
Sonnet 5 $0.00030 $0.00270
Haiku 4.5 $0.00015 $0.00135

Measured 11d ago against content hash 5e8a3be908e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

hera-review-test-adversary 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 11d 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/skills/hera-review-test-adversary/SKILL.md · 99 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. 11d ago First seen · 99 lines · 152 tokens per session scan A 5e8a3be908e5

Subscribe to this mod's changes

hera-review-test-adversary is a skill published in the GitHub repository drn/argus (10 stars, last pushed 6d ago), with no licence file. It adds 152 tokens to every session and 1,350 once invoked, about $0.0008 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 skills, from other repositories