{
  "name": "list_gists",
  "description": "List gists for a user",
  "inputSchema": {
    "type": "object",
    "properties": {
      "page": {
        "type": "number",
        "description": "Page number for pagination (min 1)",
        "minimum": 1
      },
      "perPage": {
        "type": "number",
        "description": "Results per page for pagination (min 1, max 100)",
        "minimum": 1,
        "maximum": 100
      },
      "since": {
        "type": "string",
        "description": "Only gists updated after this time (ISO 8601 timestamp)"
      },
      "username": {
        "type": "string",
        "description": "GitHub username (omit for authenticated user's gists)"
      }
    }
  }
}