NixOS MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| search_nixos_optionsB | Search for NixOS configuration options by query. Returns matching options with their types, defaults, and descriptions. |
| search_nix_packagesB | Search for Nix packages by query. Returns matching packages with their versions, descriptions, and maintainers. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 2 tools
The two tools have clearly distinct purposes: one searches for NixOS configuration options, while the other searches for Nix packages. There is no overlap in functionality, and the descriptions explicitly differentiate between options (with types, defaults) and packages (with versions, maintainers).
Both tools follow a consistent verb_noun pattern with 'search_' as the prefix, followed by the specific domain ('nixos_options' and 'nix_packages'). The naming is predictable and adheres to snake_case throughout, making it easy to understand the tool's purpose at a glance.
With only two tools, the server feels thin for a domain as broad as NixOS/Nix package management. While the tools cover searching for options and packages, there are likely many other operations (e.g., installing packages, managing configurations) that are missing, making the toolset under-scoped for the apparent purpose.
The toolset is severely incomplete for a NixOS/Nix package management server. It only provides search functionality, with no tools for CRUD operations like installing packages, updating configurations, or managing system states. This creates significant gaps that will hinder agents from performing common workflows in this domain.