{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_2n7t8xe4qbqa","handle":"mcp-server-nucleus","url":"https://wellknown.network/agents/mcp-server-nucleus","links":{"self":"https://wellknown.network/agents/mcp-server-nucleus/record.json","html":"https://wellknown.network/agents/mcp-server-nucleus","markdown":"https://wellknown.network/agents/mcp-server-nucleus/record.md","api":"https://wellknown.network/api/v1/agents/mcp-server-nucleus","status":"https://wellknown.network/api/v1/agents/mcp-server-nucleus/status","claim":"https://wellknown.network/agents/mcp-server-nucleus/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/mcp-server-nucleus/claim.json","badge":"https://wellknown.network/agents/mcp-server-nucleus/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/mcp-server-nucleus/history","tools":"https://wellknown.network/api/v1/agents/mcp-server-nucleus/tools"},"ard":{"identifier":"urn:air::server:mcp-server-nucleus","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"mcp-server-nucleus","summary":"The Agent Control Plane - Default-Deny Security for MCP Servers","description":"# 🧠 Nucleus Sovereign OS\n\n[![PyPI version](https://badge.fury.io/py/mcp-server-nucleus.svg)](https://badge.fury.io/py/mcp-server-nucleus)\n[![Website](https://img.shields.io/badge/Website-nucleusos.dev-blueviolet?logo=globe)](https://nucleusos.dev)\n[![Watch Launch Trailer](https://img.shields.io/badge/Watch-Launch_Trailer-red?logo=youtube)](https://youtu.be/jI8TUpfjS1A)\n[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)\n\n> **The Operating System for AI Agents** — Persistent Operational Memory, Swarm Orchestration, and Local-First Sovereignty.\n\nNucleus is the **Recursive Aggregator** that gives your AI agents a persistent brain (`.brain/`) and a file system. It turns stateless chatbots into stateful **Sovereign Agents**.\n\n### Context vs. Control\nClaude's `CLAUDE.md` provides **static context**. Nucleus provides **active control**.\n\n| Feature | CLAUDE.md / .cursorrules | Nucleus (Agent Control Plane) |\n| :--- | :--- | :--- |\n| **State** | Static (read-only text) | **Dynamic** (Stateful DB, Event Ledger) |\n| **Memory** | Session-bound (forgotten on close) | **Persistent** (Project-bound, recallable) |\n| **Security** | None (Prompt injection risk) | **Enforced** (Auth boundary, Default Deny) |\n| **Tools** | Suggestions only | **Orchestrated Execution** (DAGs) |\n| **Audit** | None | **Full Decision Trail** (Who/Why/When) |\n\n## ✨ Governance Features (The Moat)\n\n- **Default Deny Security** — All mounted servers start with NO network/filesystem access.\n- **Explicit Consent** — You approve every command. No silent execution.\n- **Isolation Boundaries** — Tools cannot see each other or the full chat history.\n- **Auth Firewall** — Tokens are stored in Nucleus (Host), never passed to agents.\n- **Event Ledger** — Immutable audit trail of every agent decision (`DecisionMade`).\n- **Decision Provenance** — v0.6.0 DSoR: Full audit trail with context hashing.\n- **IPC Security** — Per-request auth tokens prevent socket impersona…","publisher":null,"homepage":"https://github.com/eidetic-works/mcp-server-nucleus","repository":"https://github.com/eidetic-works/mcp-server-nucleus","version":"0.6.1","license":null,"protocols":["mcp"],"tags":["mcp"],"pricing":null,"endpoints":[{"url":"pypi:mcp-server-nucleus","type":"package_pypi","auth":null,"probeable":false}],"skills":null,"tools":null,"extra":null,"attribution":{"kind":"pypi","name":"pypi","repoUrl":"pypi","summary":"pypi","version":"pypi","description":"pypi","homepageUrl":"pypi"}},"derived":{"capabilities":[{"slug":"dev.filesystem","name":"Filesystem","confidence":0.882,"provenance":"derived"}],"categories":["dev"],"language":"en"},"observed":{"status":"unknown","statusReason":"Distributed as a package to run locally; no network endpoint to check.","lastOkAt":null,"lastProbedAt":null,"statusComputedAt":null,"reliability30d":null,"latestObservations":[],"tools":null,"package":{"name":"mcp-server-nucleus","registry":"pypi","observedAt":"2026-11-03T15:23:27.532Z","publishedAt":"2026-02-01T22:48:51.982829Z","latestVersion":"0.6.1"},"toolSurface":null,"endpointFacts":[]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"pypi","key":"mcp-server-nucleus","url":"https://pypi.org/project/mcp-server-nucleus/","firstSeenAt":"2026-09-10T04:21:56.355Z","fetchedAt":"2026-11-03T15:23:00.975Z","normalizedAt":"2026-11-03T15:23:00.975Z"}]},"firstSeenAt":"2026-09-10T04:21:56.355Z","updatedAt":"2026-11-03T15:23:27.532Z"}