A recorder and searchable archive for Claude Code sessions. It saves session data at the end of work and provides tools for querying it with citations or explicitly saying when evidence is unavailable.

Use it to record coding-agent sessions, store their original data, and search the archive for evidence-backed details.

It preserves the original session data so past decisions and conversations can be reviewed instead of being lost.

brain — Plugin by mordechaipotash

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 plugins/mordechaipotash/brain-mcp/plugin

Claude Code

/plugin marketplace add mordechaipotash/brain-mcp

Clone the repo

git clone --depth 1 https://github.com/mordechaipotash/brain-mcp

Made for: Claude Code.

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. Scan, not verified.

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 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.

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/.claude-plugin/plugin.json · 26 lines

What it actually says

{
  "name": "brain",
  "version": "2.0.0",
  "description": "THE RECORDER \u2014 capture your Claude Code sessions at source (Stop/SessionEnd hooks), keep the bytes forever, and query them through 7 cited-or-abstain MCP tools.",
  "author": {
    "name": "Mordechai Potash",
    "url": "https://github.com/mordechaipotash"
  },
  "repository": "https://github.com/mordechaipotash/brain-mcp",
  "license": "MIT",
  "keywords": [
    "recorder",
    "memory",
    "provenance",
    "capture",
    "mcp"
  ],
  "userConfig": {
    "brain_home": {
      "type": "directory",
      "title": "Brain data directory (the floor)",
      "default": "~/.brain",
      "description": "Where the recorder keeps your floor: spool, lake (byte-exact originals), manifest, index."
    }
  }
}

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.

yesterday First seen · 26 lines scan A 62b5a17ad1cb

Subscribe to this mod's changes

brain is a plugin published in the GitHub repository mordechaipotash/brain-mcp (68 stars, last pushed 12d ago), licensed MIT. 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 2026-08-30.

Apple Silicon Research claude context-engineering conversation-analysis mcp personal-knowledge-management

brain

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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