Nucleus

Name: Nucleus
Author: eidetic-works

by eidetic-workscommunityv1.8.0

Nucleus is an MCP server that verifies AI outputs, records corrections, and trains the system to improve reliability over time. It operates locally on your machine.

From the registry: MCP server for persistent memory, execution verification, governance, and compliance.

GitHub Repository

Install & configure

Install in your client

Paste into the AI you're chatting with — it will figure out the rest

Please install the `nucleus` MCP server into my current AI client (that's you).

Canonical MCP server config (stdio transport):
- command: `npx`
- args: ["-y","nucleus-mcp"]
- optional environment variables:
  - `NUCLEAR_BRAIN_PATH`: Explicit path to your project's .brain directory. Falls back to walking up from CWD or $HOME/.nucleus/brain. (example: `/path/to/your/project/.brain`)

Note: Alternative install: `pip install nucleus-mcp` then `python3 -m mcp_server_nucleus`. Free core (MIT); Nucleus Pro is a paid upgrade.

Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.

Note: Alternative install: `pip install nucleus-mcp` then `python3 -m mcp_server_nucleus`. Free core (MIT); Nucleus Pro is a paid upgrade.

Tools (8)

GROUND

Execution verification with 5 tiers: diff, syntax, imports, tests, runtime.

ALIGN

Human corrections that automatically record a verdict, create a training pair, and emit an event.

Memory

Engrams that persist across sessions.

Sessions

Save context and resume later.

Tasks

Priority queue with escalation and heartbeat monitoring.

Governance

Compliance configurations and audit trails.

Orchestration

Agent slots and task dispatch.

Environment variables

NUCLEAR_BRAIN_PATHrequiredPath to the project brain directory.

Prerequisites

• python3

Packages

nucleus-mcp

npmv1.8.1transport: stdio

Details

Language: Python
License: MIT
Released: Apr 4, 2026
Last commit: Jun 14, 2026
Registry name: io.github.eidetic-works/nucleus

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