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Lay the groundwork to support history in agent2 (#36483)

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This pull request introduces title generation and history replaying. We
still need to wire up the rest of the history but this gets us very
close. I extracted a lot of this code from `agent2-history` because that
branch was starting to get long-lived and there were lots of changes
since we started.

Release Notes:

- N/A
This commit is contained in:
Antonio Scandurra 2025-08-19 16:24:23 +02:00 • committed by GitHub
parent c4083b9b63
commit 6c255c1973
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GPG key ID: B5690EEEBB952194
19 changed files with 929 additions and 328 deletions
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104
crates/agent2/src/agent.rs
View file

@ -1,10 +1,11 @@
use crate::{
AgentResponseEvent, ContextServerRegistry, CopyPathTool, CreateDirectoryTool, DeletePathTool,
DiagnosticsTool, EditFileTool, FetchTool, FindPathTool, GrepTool, ListDirectoryTool,
MovePathTool, NowTool, OpenTool, ReadFileTool, TerminalTool, ThinkingTool, Thread,
ToolCallAuthorization, UserMessageContent, WebSearchTool, templates::Templates,
ContextServerRegistry, CopyPathTool, CreateDirectoryTool, DeletePathTool, DiagnosticsTool,
EditFileTool, FetchTool, FindPathTool, GrepTool, ListDirectoryTool, MovePathTool, NowTool,
OpenTool, ReadFileTool, TerminalTool, ThinkingTool, Thread, ThreadEvent, ToolCallAuthorization,
UserMessageContent, WebSearchTool, templates::Templates,
};
use acp_thread::AgentModelSelector;
use action_log::ActionLog;
use agent_client_protocol as acp;
use agent_settings::AgentSettings;
use anyhow::{Context as _, Result, anyhow};
@ -427,18 +428,19 @@ impl NativeAgent {
) {
self.models.refresh_list(cx);
let default_model = LanguageModelRegistry::read_global(cx)
.default_model()
.map(|m| m.model.clone());
let registry = LanguageModelRegistry::read_global(cx);
let default_model = registry.default_model().map(|m| m.model.clone());
let summarization_model = registry.thread_summary_model().map(|m| m.model.clone());
for session in self.sessions.values_mut() {
session.thread.update(cx, |thread, cx| {
if thread.model().is_none()
&& let Some(model) = default_model.clone()
{
thread.set_model(model);
thread.set_model(model, cx);
cx.notify();
}
thread.set_summarization_model(summarization_model.clone(), cx);
});
}
}
@ -462,10 +464,7 @@ impl NativeAgentConnection {
session_id: acp::SessionId,
cx: &mut App,
f: impl 'static
+ FnOnce(
Entity<Thread>,
&mut App,
) -> Result<mpsc::UnboundedReceiver<Result<AgentResponseEvent>>>,
+ FnOnce(Entity<Thread>, &mut App) -> Result<mpsc::UnboundedReceiver<Result<ThreadEvent>>>,
) -> Task<Result<acp::PromptResponse>> {
let Some((thread, acp_thread)) = self.0.update(cx, |agent, _cx| {
agent
@ -489,7 +488,18 @@ impl NativeAgentConnection {
log::trace!("Received completion event: {:?}", event);
match event {
AgentResponseEvent::Text(text) => {
ThreadEvent::UserMessage(message) => {
acp_thread.update(cx, |thread, cx| {
for content in message.content {
thread.push_user_content_block(
Some(message.id.clone()),
content.into(),
cx,
);
}
})?;
}
ThreadEvent::AgentText(text) => {
acp_thread.update(cx, |thread, cx| {
thread.push_assistant_content_block(
acp::ContentBlock::Text(acp::TextContent {
@ -501,7 +511,7 @@ impl NativeAgentConnection {
)
})?;
}
AgentResponseEvent::Thinking(text) => {
ThreadEvent::AgentThinking(text) => {
acp_thread.update(cx, |thread, cx| {
thread.push_assistant_content_block(
acp::ContentBlock::Text(acp::TextContent {
@ -513,7 +523,7 @@ impl NativeAgentConnection {
)
})?;
}
AgentResponseEvent::ToolCallAuthorization(ToolCallAuthorization {
ThreadEvent::ToolCallAuthorization(ToolCallAuthorization {
tool_call,
options,
response,
@ -536,22 +546,26 @@ impl NativeAgentConnection {
})
.detach();
}
AgentResponseEvent::ToolCall(tool_call) => {
ThreadEvent::ToolCall(tool_call) => {
acp_thread.update(cx, |thread, cx| {
thread.upsert_tool_call(tool_call, cx)
})??;
}
AgentResponseEvent::ToolCallUpdate(update) => {
ThreadEvent::ToolCallUpdate(update) => {
acp_thread.update(cx, |thread, cx| {
thread.update_tool_call(update, cx)
})??;
}
AgentResponseEvent::Retry(status) => {
ThreadEvent::TitleUpdate(title) => {
acp_thread
.update(cx, |thread, cx| thread.update_title(title, cx))??;
}
ThreadEvent::Retry(status) => {
acp_thread.update(cx, |thread, cx| {
thread.update_retry_status(status, cx)
})?;
}
AgentResponseEvent::Stop(stop_reason) => {
ThreadEvent::Stop(stop_reason) => {
log::debug!("Assistant message complete: {:?}", stop_reason);
return Ok(acp::PromptResponse { stop_reason });
}
@ -604,8 +618,8 @@ impl AgentModelSelector for NativeAgentConnection {
return Task::ready(Err(anyhow!("Invalid model ID {}", model_id)));
};
thread.update(cx, |thread, _cx| {
thread.set_model(model.clone());
thread.update(cx, |thread, cx| {
thread.set_model(model.clone(), cx);
});
update_settings_file::<AgentSettings>(
@ -665,30 +679,14 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
cx.spawn(async move |cx| {
log::debug!("Starting thread creation in async context");
// Generate session ID
let session_id = acp::SessionId(uuid::Uuid::new_v4().to_string().into());
log::info!("Created session with ID: {}", session_id);
// Create AcpThread
let acp_thread = cx.update(|cx| {
cx.new(|cx| {
acp_thread::AcpThread::new(
"agent2",
self.clone(),
project.clone(),
session_id.clone(),
cx,
)
})
})?;
let action_log = cx.update(|cx| acp_thread.read(cx).action_log().clone())?;
let action_log = cx.new(|_cx| ActionLog::new(project.clone()))?;
// Create Thread
let thread = agent.update(
cx,
|agent, cx: &mut gpui::Context<NativeAgent>| -> Result<_> {
// Fetch default model from registry settings
let registry = LanguageModelRegistry::read_global(cx);
let language_registry = project.read(cx).languages().clone();
// Log available models for debugging
let available_count = registry.available_models(cx).count();
@ -699,6 +697,7 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
.models
.model_from_id(&LanguageModels::model_id(&default_model.model))
});
let summarization_model = registry.thread_summary_model().map(|c| c.model);
let thread = cx.new(|cx| {
let mut thread = Thread::new(
@ -708,13 +707,14 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
action_log.clone(),
agent.templates.clone(),
default_model,
summarization_model,
cx,
);
thread.add_tool(CopyPathTool::new(project.clone()));
thread.add_tool(CreateDirectoryTool::new(project.clone()));
thread.add_tool(DeletePathTool::new(project.clone(), action_log.clone()));
thread.add_tool(DiagnosticsTool::new(project.clone()));
thread.add_tool(EditFileTool::new(cx.entity()));
thread.add_tool(EditFileTool::new(cx.weak_entity(), language_registry));
thread.add_tool(FetchTool::new(project.read(cx).client().http_client()));
thread.add_tool(FindPathTool::new(project.clone()));
thread.add_tool(GrepTool::new(project.clone()));
@ -722,7 +722,7 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
thread.add_tool(MovePathTool::new(project.clone()));
thread.add_tool(NowTool);
thread.add_tool(OpenTool::new(project.clone()));
thread.add_tool(ReadFileTool::new(project.clone(), action_log));
thread.add_tool(ReadFileTool::new(project.clone(), action_log.clone()));
thread.add_tool(TerminalTool::new(project.clone(), cx));
thread.add_tool(ThinkingTool);
thread.add_tool(WebSearchTool); // TODO: Enable this only if it's a zed model.
@ -733,6 +733,21 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
},
)??;
let session_id = thread.read_with(cx, |thread, _| thread.id().clone())?;
log::info!("Created session with ID: {}", session_id);
// Create AcpThread
let acp_thread = cx.update(|cx| {
cx.new(|_cx| {
acp_thread::AcpThread::new(
"agent2",
self.clone(),
project.clone(),
action_log.clone(),
session_id.clone(),
)
})
})?;
// Store the session
agent.update(cx, |agent, cx| {
agent.sessions.insert(
@ -803,7 +818,7 @@ impl acp_thread::AgentConnection for NativeAgentConnection {
log::info!("Cancelling on session: {}", session_id);
self.0.update(cx, |agent, cx| {
if let Some(agent) = agent.sessions.get(session_id) {
agent.thread.update(cx, |thread, _cx| thread.cancel());
agent.thread.update(cx, |thread, cx| thread.cancel(cx));
}
});
}
@ -830,7 +845,10 @@ struct NativeAgentSessionEditor(Entity<Thread>);
impl acp_thread::AgentSessionEditor for NativeAgentSessionEditor {
fn truncate(&self, message_id: acp_thread::UserMessageId, cx: &mut App) -> Task<Result<()>> {
Task::ready(self.0.update(cx, |thread, _cx| thread.truncate(message_id)))
Task::ready(
self.0
.update(cx, |thread, cx| thread.truncate(message_id, cx)),
)
}
}