feat: GUI can use structured output present in recipes (#3218)

crates/goose/src/agents/agent.rs

@@ -1321,7 +1321,9 @@ mod tests {
         agent.add_final_output_tool(response).await;
 
         let tools = agent.list_tools(None).await;
-        let final_output_tool = tools.iter().find(|tool| tool.name == "final_output");
+        let final_output_tool = tools
+            .iter()
+            .find(|tool| tool.name == FINAL_OUTPUT_TOOL_NAME);
 
         assert!(
             final_output_tool.is_some(),

crates/goose/src/agents/final_output_tool.rs

@@ -7,7 +7,7 @@ use mcp_core::{
 };
 use serde_json::Value;
 
-pub const FINAL_OUTPUT_TOOL_NAME: &str = "final_output";
+pub const FINAL_OUTPUT_TOOL_NAME: &str = "recipe__final_output";
 pub const FINAL_OUTPUT_CONTINUATION_MESSAGE: &str =
     "You MUST call the `final_output` tool with your final output for the user.";