{ "name": "browser_tabs", "description": "List, create, close, or select a browser tab", "arguments": { "type": "object", "properties": { "action": { "type": "string", "enum": [ "list", "new", "close", "select" ], "description": "Operation to perform" }, "index": { "type": "number", "description": "Tab index. Required for \"select\". Optional for \"close\" (defaults to current tab)." }, "position": { "type": "string", "enum": [ "active", "side" ], "description": "Only set for action \"new\" when the user explicitly asks to reveal, show, focus, or open the browser visibly. Set to \"active\" for visible/revealed browser UI, or \"side\" if the user mentions \"side\", \"beside\", \"side panel\", or \"side by side\". Omit this parameter for background automation so focus is preserved." } }, "required": [ "action" ] } }