messaging-cache

An autonomous security-testing agent for message brokers and caching systems, which are services that pass or store messages between applications.

In plain words
What is it for?
Use it to test Redis, RabbitMQ, Kafka, NATS, MQTT, ActiveMQ, and ZooKeeper for unauthenticated access, exposed management APIs, and related security risks.
Why use it?
It helps find exposed services, unsafe management interfaces, and attack paths that may lead toward remote code execution.

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/ascit31/dark-moon/messaging-cache
Clone the repo
git clone --depth 1 https://github.com/ASCIT31/Dark-Moon
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 7,262 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 2 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 $0.00056 $0.07262
Opus 5 $0.00028 $0.03631
Sonnet 5 $0.00011 $0.01452
Haiku 4.5 $0.00006 $0.00726

Measured yesterday against content hash 32e6e4d59c7d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

messaging-cache scanned grade A with 2 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 yesterday.

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.

Sends data to an external URLlowData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

- curl -s -u $USER:$PASS "http://$HOST:15672/api/queues/<vhost>/<queue>/get" -X POST -d '{"count":5,"ackmode":"ack_requeue_true","encoding":"auto"}' | jq .

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

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

Use redis-cli (already in the toolbox) for Redis, and curl+jq against the
conf/agents/messaging-cache.md · 547 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. yesterday First seen · 547 lines · 56 tokens per session scan A 32e6e4d59c7d

Subscribe to this mod's changes

messaging-cache is an agent published in the GitHub repository ASCIT31/Dark-Moon (878 stars, last pushed 3d ago), licensed GPL-3.0. It adds 56 tokens to every session and 7,262 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.