adversary

adversary is an agent for Claude Code from scrypster/muninndb. It costs 121 tokens per session (1,659 once invoked), scanned A, original, no licence file.

An adversarial agent for testing designs, changes, and claims by looking for concrete ways they could fail. A finding must be reproducible through an executable example or test.

In plain words
What is it for?
Use it to challenge a design, reproduce a reported bug, test whether a fix works, and find failures caused by inputs or concurrent callers.
Why use it?
It replaces unsupported suspicion with evidence about bad inputs, ordering, crashes, concurrency, false assumptions, or fixes that do not actually work.

Agent for Claude Code

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/scrypster/muninndb/adversary
Clone the repo
git clone --depth 1 https://github.com/scrypster/muninndb

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/scrypster/muninndb/adversary.svg)](https://agentmods.dev/agents/scrypster/muninndb/adversary)
Your own site
<a href="https://agentmods.dev/agents/scrypster/muninndb/adversary"><img src="https://agentmods.dev/badge/agents/scrypster/muninndb/adversary.svg" alt="Measured on agentmods" height="20"></a>
Per session 121 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,659 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 $0.00121 $0.01659
Opus 5 $0.00060 $0.00830
Sonnet 5 $0.00024 $0.00332
Haiku 4.5 $0.00012 $0.00166

Measured 5d ago against content hash e46e1d8241fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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/adversary.md · 126 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 5d ago First seen · 126 lines · 121 tokens per session scan A e46e1d8241fe

Subscribe to this mod's changes

adversary is an agent published in the GitHub repository scrypster/muninndb (327 stars, last pushed 2d ago), with no licence file. It adds 121 tokens to every session and 1,659 once invoked, about $0.0006 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.