Constant SET_ACTIVE_TAB_TOOL 

pub(crate) const SET_ACTIVE_TAB_TOOL: &str = r#"{
  "name": "SetActiveTab",
  "description": "Switch the active (foreground) tab to the given tab_id within its workspace. Get tab ids from Layout(query:\"tabs\") or Layout(query:\"layout\").",
  "inputSchema": {
    "type": "object",
    "properties": {
      "tab_id": { "type": "string", "description": "The tab to make active" }
    },
    "required": ["tab_id"]
  }
}"#;