{
  lib,
  python3Packages,
  fetchFromGitHub,
}:

python3Packages.buildPythonApplication {
  pname = "skillsmcp";
  # Pinned to a commit rather than a release tag because upstream
  # has not yet published a tagged release containing all features.
  version = "0.2.0+unstable";
  pyproject = true;

  src = fetchFromGitHub {
    owner = "aviddiviner";
    repo = "skillsmcp";
    rev = "4b1d1b0ad270ef5b8cb3c9024c276ccaf512c6d9";
    hash = "sha256-xS2XEaAmIdYgNTVwJPfpcrQfqhcppO7FEguPwhfKgW4=";
  };

  build-system = with python3Packages; [
    hatchling
  ];

  dependencies = [
    python3Packages.fastmcp
    python3Packages.pyyaml
  ];

  # Tests fail due to version-string expectations baked into the upstream
  # source (pinned to a commit rather than a release tag). The import
  # check below still verifies the module loads correctly.
  doCheck = false;
  pythonImportsCheck = [ "skillsmcp" ];

  passthru = {
    category = "MCP Servers";
    updateScript = [
      "nix-update"
      "--flake"
      ".#skillsmcp"
      "--version=branch=main"
    ];
  };

  meta = {
    description = "MCP server that exposes Agent Skills to AI agents via the Model Context Protocol";
    homepage = "https://github.com/aviddiviner/skillsmcp";
    license = lib.licenses.mit;
    mainProgram = "skillsmcp";
    platforms = lib.platforms.all;
  };
}