brain

brain is an MCP server for Claude Code from mordechaipotash/brain-mcp. Its token cost is not measured, scanned A, original, MIT.

A locally run MCP server that provides 25 structured skills for an AI agent, including rules for citing the sources of information. MCP is a standard way to give an agent additional tools.

In plain words
What is it for?
It is for adding the brain-mcp skills to an agent through the brain-mcp Python package, using a configured BRAIN_HOME location.
Why use it?
It provides a defined set of cognitive-support tools and requires less custom setup than building those tools yourself.

MCP server for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: listed in a Claude config.

Part of the brain plugin — 3 hooks, 1 MCP server shipped together

Good fit It is for adding the brain-mcp skills to an agent through the brain-mcp Python package, using a configured BRAIN_HOME location.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/mordechaipotash/brain-mcp/brain
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/mordechaipotash/brain-mcp

Made for: Claude Code.

Or install brain, the plugin that ships this one along with the rest of its 3 hooks, 1 MCP server.

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 brain

README.md
[![agentmods](https://agentmods.dev/badge/mcp/mordechaipotash/brain-mcp/brain.svg)](https://agentmods.dev/mcp/mordechaipotash/brain-mcp/brain)
Your own site
<a href="https://agentmods.dev/mcp/mordechaipotash/brain-mcp/brain"><img src="https://agentmods.dev/badge/mcp/mordechaipotash/brain-mcp/brain.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 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 original No closer match found in the catalogue.
Security

Grade A, and why

brain 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 7d 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.

plugin/.mcp.json · 12 lines

What it actually says

{
  "brain": {
    "command": "uvx",
    "args": [
      "brain-mcp==2.0.0b3",
      "serve"
    ],
    "env": {
      "BRAIN_HOME": "${user_config.brain_home}"
    }
  }
}
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. 7d ago First seen · 12 lines scan A a73ab1add37b

Subscribe to this mod's changes

brain is an MCP server published in the GitHub repository mordechaipotash/brain-mcp (69 stars, last pushed 17d ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.