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fix(agent): preserve native tool-call fallbacks and history fidelity

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Chummy 2026-02-17 17:49:31 +08:00
parent f322360248
commit f75f73a50d
2 changed files with 112 additions and 66 deletions
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143
src/agent/loop_.rs
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@ -489,77 +489,88 @@ pub(crate) async fn run_tool_call_loop(
let llm_started_at = Instant::now();
// Choose between native tool-call API and prompt-based tool use.
let (response_text, parsed_text, tool_calls, assistant_history_content) = if use_native_tools {
match provider
.chat_with_tools(history, &tool_definitions, model, temperature)
.await
{
Ok(resp) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: true,
error_message: None,
});
let response_text = resp.text_or_empty().to_string();
let mut calls = parse_structured_tool_calls(&resp.tool_calls);
let mut parsed_text = String::new();
let (response_text, parsed_text, tool_calls, assistant_history_content) =
if use_native_tools {
match provider
.chat_with_tools(history, &tool_definitions, model, temperature)
.await
{
Ok(resp) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: true,
error_message: None,
});
let response_text = resp.text_or_empty().to_string();
let mut calls = parse_structured_tool_calls(&resp.tool_calls);
let mut parsed_text = String::new();
if calls.is_empty() {
let (fallback_text, fallback_calls) = parse_tool_calls(&response_text);
if !fallback_text.is_empty() {
parsed_text = fallback_text;
if calls.is_empty() {
let (fallback_text, fallback_calls) = parse_tool_calls(&response_text);
if !fallback_text.is_empty() {
parsed_text = fallback_text;
}
calls = fallback_calls;
}
calls = fallback_calls;
let assistant_history_content = if resp.tool_calls.is_empty() {
response_text.clone()
} else {
build_assistant_history_with_tool_calls(
&response_text,
&resp.tool_calls,
)
};
(response_text, parsed_text, calls, assistant_history_content)
}
Err(e) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: false,
error_message: Some(crate::providers::sanitize_api_error(
&e.to_string(),
)),
});
return Err(e);
}
let assistant_history_content = if resp.tool_calls.is_empty() {
response_text.clone()
} else {
build_assistant_history_with_tool_calls(&response_text, &resp.tool_calls)
};
(response_text, parsed_text, calls, assistant_history_content)
}
Err(e) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: false,
error_message: Some(crate::providers::sanitize_api_error(&e.to_string())),
});
return Err(e);
} else {
match provider
.chat_with_history(history, model, temperature)
.await
{
Ok(resp) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: true,
error_message: None,
});
let response_text = resp;
let assistant_history_content = response_text.clone();
let (parsed_text, calls) = parse_tool_calls(&response_text);
(response_text, parsed_text, calls, assistant_history_content)
}
Err(e) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: false,
error_message: Some(crate::providers::sanitize_api_error(
&e.to_string(),
)),
});
return Err(e);
}
}
}
} else {
match provider.chat_with_history(history, model, temperature).await {
Ok(resp) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: true,
error_message: None,
});
let response_text = resp;
let assistant_history_content = response_text.clone();
let (parsed_text, calls) = parse_tool_calls(&response_text);
(response_text, parsed_text, calls, assistant_history_content)
}
Err(e) => {
observer.record_event(&ObserverEvent::LlmResponse {
provider: provider_name.to_string(),
model: model.to_string(),
duration: llm_started_at.elapsed(),
success: false,
error_message: Some(crate::providers::sanitize_api_error(&e.to_string())),
});
return Err(e);
}
}
};
};
let display_text = if parsed_text.is_empty() {
response_text.clone()