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hammerspoon-mcp

Control macOS through Hammerspoon: windows, apps, and API search. Injection-safe by design.

vukvukovichvukvukovich/hammerspoon-mcp★ 1Updated Aug 14, 2026

server.json

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.vukvukovich/hammerspoon-mcp",
  "description": "Control macOS through Hammerspoon: windows, apps, and API search. Injection-safe by design.",
  "repository": {
    "url": "https://github.com/vukvukovich/hammerspoon-mcp",
    "source": "github"
  },
  "version": "0.4.0",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@vukvukovich/hammerspoon-mcp",
      "version": "0.4.0",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Which tools to expose. \"safe\" (default) exposes inspection, window management, and system tools only. \"all\" additionally exposes hs_eval, hs_applescript, and hs_ui_press, which run arbitrary Lua and AppleScript and press UI elements - anything the user can do.",
          "default": "safe",
          "name": "HS_MCP_TOOLS"
        },
        {
          "description": "How Lua reaches Hammerspoon. \"socket\" (default) keeps one persistent Unix domain socket, self-installed on first call, with automatic fallback to spawning; \"spawn\" runs one hs process per call.",
          "default": "socket",
          "name": "HS_MCP_TRANSPORT"
        },
        {
          "description": "Explicit path to the Hammerspoon hs command line tool. Only needed when Hammerspoon is installed somewhere unusual.",
          "name": "HS_MCP_HS_PATH"
        },
        {
          "description": "Explicit path to Hammerspoon's bundled docs.json, used by hs_api_search.",
          "name": "HS_MCP_DOCS_PATH"
        },
        {
          "description": "Log verbosity on stderr: debug, info (default), warn, or error.",
          "default": "info",
          "name": "HS_MCP_LOG_LEVEL"
        }
      ]
    }
  ]
}

Permissions

DeclaredDetected
Runs code—node
Installs—npm:@vukvukovich/hammerspoon-mcp@0.4.0
Runs install scripts—None
NetworkNoneNone
Needs credentialsNoneNone
Outside the workspace—None
Agent tools—None

Checks

Low risk · Nothing worth a warning was found.

Not reviewed by a person · Checked by rules; the model review is not switched on yet.

Versions

  1. #10.4.0latestOct 7, 2026