fix tool use hydration

Author: brandonskiser

crates/chat-cli/src/cli/chat/conversation_state.rs

@@ -370,6 +370,7 @@ impl ConversationState {
                     Tool::ToolSpecification(tool_specification) => tool_specification.name.as_str(),
                 })
             })
+            .filter(|name| *name != DUMMY_TOOL_NAME)
             .collect();
 
         for (_, assistant) in &mut self.history {

crates/chat-cli/src/cli/chat/parser.rs

@@ -244,11 +244,14 @@ impl ResponseParser {
             // if the tool just does not need any input
             _ => serde_json::json!({}),
         };
+        let orig_name = name.clone();
+        let orig_args = args.clone();
         Ok(AssistantToolUse {
             id,
             name,
+            orig_name,
             args,
-            ..Default::default()
+            orig_args,
         })
     }