arcade_station: Agent for Claude Code

.claude/agents/adversary.md

adversary is an agent for Claude Code from dtammam/arcade_station. It costs 118 tokens per session (1,576 once invoked), scanned A, original, GPL-3.0.

An adversarial reviewer for a code-review gate. It assumes other reviewers may have missed a problem and looks for evidence by measuring the software rather than trusting written explanations.

In plain words
What is it for?
It is for testing a branch against a stated plan, acceptance requirements, and named areas of risk.
Why use it?
It adds an independent check for defects that ordinary implementation and review may overlook. It is re-engaged to check changes made after its first review.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is dtammam/arcade_station's own configuration. It tells Claude Code how to work on arcade_station 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 arcade_station configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dtammam/arcade_station. 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/dtammam/arcade_station/main/.claude/agents/adversary.md
Clone the repo
git clone --depth 1 https://github.com/dtammam/arcade_station

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 adversary

README.md
[![agentmods](https://agentmods.dev/badge/agents/dtammam/arcade_station/adversary/github.svg)](https://agentmods.dev/agents/dtammam/arcade_station/adversary)
Your own site
<a href="https://agentmods.dev/agents/dtammam/arcade_station/adversary"><img src="https://agentmods.dev/badge/agents/dtammam/arcade_station/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 adversary

Your own site · 80×15
<a href="https://agentmods.dev/agents/dtammam/arcade_station/adversary"><img src="https://agentmods.dev/badge/agents/dtammam/arcade_station/adversary.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 118 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,576 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 $0.00118 $0.01576
Opus 5.5 $0.00047 $0.00630
Sonnet 5.5 $0.00024 $0.00315
Haiku 4.5 $0.00012 $0.00158

Measured 15d ago against content hash 342e97fe6f91, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 15d 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/adversary.md · 120 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-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. 15d ago First seen · 120 lines · 118 tokens per session scan A 342e97fe6f91

Subscribe to this mod's changes

adversary is an agent published in the GitHub repository dtammam/arcade_station (28 stars, last pushed 1mo ago), licensed GPL-3.0. It adds 118 tokens to every session and 1,576 once invoked, about $0.0005 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 2026-10-14.

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