mixinmcp

mixinmcp is a plugin for Claude Code from muon-rw/MixinMCP. Its manifest loads nothing; the 2 skills it bundles cost 294 tokens per session together, scanned A, original, GPL-3.0.

A plugin that adds specialist guidance and tools for Java development in IntelliJ-based environments.

In plain words
What is it for?
Searching full classpaths, inspecting type hierarchies and bytecode, performing reference-aware refactors, and writing SpongePowered Mixin or MixinExtras code.
Why use it?
It helps an agent inspect dependencies and code structure, understand bytecode, and make safer changes across references.

Plugin 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.

Claude Code
/plugin marketplace add muon-rw/MixinMCP
agentmods
npx agentmods add plugins/muon-rw/mixinmcp/claude-plugin
Clone the repo
git clone --depth 1 https://github.com/muon-rw/MixinMCP

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 mixinmcp

README.md
[![agentmods](https://agentmods.dev/badge/plugins/muon-rw/mixinmcp/claude-plugin.svg)](https://agentmods.dev/plugins/muon-rw/mixinmcp/claude-plugin)
Your own site
<a href="https://agentmods.dev/plugins/muon-rw/mixinmcp/claude-plugin"><img src="https://agentmods.dev/badge/plugins/muon-rw/mixinmcp/claude-plugin.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills cost 294 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

mixinmcp 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 today.

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-plugin/.claude-plugin/plugin.json · 15 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

Contents

What it installs

The manifest is a name and a version. 2 skills travel with it, and installing the plugin installs all of them — 294 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. today Changed 193ef4667c86
  2. 3d ago First seen · 15 lines scan A 66dc8b6194ad

Subscribe to this mod's changes

mixinmcp is a plugin published in the GitHub repository muon-rw/MixinMCP (6 stars, last pushed yesterday), licensed GPL-3.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.