A live code graph for a repository that connects code structure with context, impact, ownership, explanations, and saved knowledge.

It is for mapping a codebase, understanding change impact and ownership, explaining why code exists, and recalling or saving repository knowledge.

It gives an agent a way to trace how code relates to other parts of the repository instead of relying only on individual files.

mushroom — Plugin for Claude Code by MatthewSherlin

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.

Clone the repo

git clone --depth 1 https://github.com/MatthewSherlin/mushroomdb

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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/matthewsherlin/mushroomdb/plugin/github.svg)](https://agentmods.dev/plugins/matthewsherlin/mushroomdb/plugin)

Your own site

<a href="https://agentmods.dev/plugins/matthewsherlin/mushroomdb/plugin"><img src="https://agentmods.dev/badge/plugins/matthewsherlin/mushroomdb/plugin/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.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/matthewsherlin/mushroomdb/plugin"><img src="https://agentmods.dev/badge/plugins/matthewsherlin/mushroomdb/plugin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

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.

Security

Grade A, and why

mushroom 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.

packaging/plugin/.claude-plugin/plugin.json · 10 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

Contents

What it installs

The manifest is a name and a version. 2 hooks, 1 MCP server travel with it, and installing the plugin installs all of 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.

today Changed 9d4c23aa3ac2
5d ago First seen · 10 lines scan A 4e41552a4960

Subscribe to this mod's changes

mushroom is a plugin published in the GitHub repository MatthewSherlin/mushroomdb (4 stars, last pushed yesterday), with no licence file. 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 2026-09-05.

Code review Databases Rust cypher embedded-database graph-database knowledge-graph

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