GET /api/tools

{
  "tools": [
    {
      "name": "executeCommand",
      "description": "Execute a shell command",
      "source": "built-in",
      "usageCount": 156
    },
    {
      "name": "readFile",
      "description": "Read file contents",
      "source": "built-in",
      "usageCount": 89
    }
  ]
}