Agents.Nix — AI skill for Claude Code

agents.nix

Nix expressions for AI agent skills from [skills.sh](https://skills.sh) and [skillsdirectory.com](https://www.skillsdirectory.com).

As of September 2026, this flake provides Nix derivations for over 145,000 skills sourced from more than 21,000 GitHub repositories. Each skill is individually packaged, pinned to a specific revision, and made available through a nixpkgs overlay.

Prerequisites

(Optional) Enable flakes

Read about [Nix flakes](https://wiki.nixos.org/wiki/Flakes) and [set them up](https://wiki.nixos.org/wiki/Flakes#Setup).

Overlay

Read about [Overlays](https://wiki.nixos.org/wiki/Overlays#Using_overlays).

With flakes

Add `agents.nix` to your flake inputs:

{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    agents-nix.url = "github:sudosubin/agents.nix";
  };

  outputs = { nixpkgs, agents-nix, ... }:
    let
      pkgs = import nixpkgs {
        system = "aarch64-darwin"; # or "x86_64-linux", etc.
        overlays = [ agents-nix.overlays.default ];
      };
    in
    {
      # pkgs.agent-skills.github...
    };
}

Without flakes

let
  agents-nix = import (builtins.fetchGit {
    url = "https://github.com/sudosubin/agents.nix";
    ref = "refs/heads/main";
  });

  pkgs = import  {
    overlays = [ agents-nix.overlays.default ];
  };
in
  # pkgs.agent-skills.github...

Usage

Get `agent-skills`

Get `agent-skills` via the overlay

After applying the overlay (see [Overlay](#overlay)), skills are available under `pkgs.agent-skills`:

pkgs.agent-skills.github...

Get `agent-skills` from `agents.nix` directly

Without the overlay, you can access skills from the flake outputs:

agents-nix.agent-skills.${system}.github...

Skill identifiers

Skills are organized in a four-level hierarchy: `github...`