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Nix Agent

mcp-jeff7712-nix-agent · by JEFF7712

Agent MCP server + skill for managing your NixOS system

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Install

$ agentstack add mcp-jeff7712-nix-agent

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

A local MCP server that gives AI agents composable NixOS / Home Manager operations: eval, lint, format, build, diff, switch, generations.

It pairs with mcp-nixos. nix-agent operates on your actual configuration, mcp-nixos handles package and option discovery.

> Experimental and a work in progress. Feedback and contributions welcome.

Install

Paste this to a coding agent (Claude Code, opencode, …) and it does the install:

Read https://raw.githubusercontent.com/JEFF7712/nix-agent/main/docs/agent-install.md and follow every step to install nix-agent on this NixOS system, install the companion skill, and register nix-agent in my MCP settings for this machine.

Or do it by hand, see [docs/usage.md](docs/usage.md#install).

Docs

  • [docs/usage.md](docs/usage.md): install, MCP host config, tool surface, workflow, design notes
  • [docs/agent-install.md](docs/agent-install.md): one-shot agent install guide
  • [docs/privileged-automation.md](docs/privileged-automation.md): non-interactive switch
  • [skills/nix-agent/SKILL.md](skills/nix-agent/SKILL.md): companion agent skill

The banner uses the Nix snowflake from NixOS/nixos-artwork, licensed CC-BY 4.0.

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

Reviews

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Versions

  • v0.1.0 Imported from the upstream source.

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