710f728124
1. Added an elicitation for `approve-patch` which is very similar to `approve-exec`. 2. Extracted both elicitations to their own files to prevent `codex_tool_runner` from blowing up in size.
236 lines
8.8 KiB
Rust
236 lines
8.8 KiB
Rust
//! Asynchronous worker that executes a **Codex** tool-call inside a spawned
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//! Tokio task. Separated from `message_processor.rs` to keep that file small
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//! and to make future feature-growth easier to manage.
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use std::collections::HashMap;
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use std::sync::Arc;
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use codex_core::Codex;
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use codex_core::codex_wrapper::init_codex;
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use codex_core::config::Config as CodexConfig;
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use codex_core::protocol::AgentMessageEvent;
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use codex_core::protocol::ApplyPatchApprovalRequestEvent;
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use codex_core::protocol::EventMsg;
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use codex_core::protocol::ExecApprovalRequestEvent;
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use codex_core::protocol::InputItem;
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use codex_core::protocol::Op;
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use codex_core::protocol::Submission;
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use codex_core::protocol::TaskCompleteEvent;
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use mcp_types::CallToolResult;
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use mcp_types::ContentBlock;
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use mcp_types::RequestId;
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use mcp_types::TextContent;
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use tokio::sync::Mutex;
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use uuid::Uuid;
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use crate::exec_approval::handle_exec_approval_request;
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use crate::outgoing_message::OutgoingMessageSender;
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use crate::patch_approval::handle_patch_approval_request;
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pub(crate) const INVALID_PARAMS_ERROR_CODE: i64 = -32602;
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/// Run a complete Codex session and stream events back to the client.
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///
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/// On completion (success or error) the function sends the appropriate
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/// `tools/call` response so the LLM can continue the conversation.
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pub async fn run_codex_tool_session(
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id: RequestId,
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initial_prompt: String,
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config: CodexConfig,
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outgoing: Arc<OutgoingMessageSender>,
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session_map: Arc<Mutex<HashMap<Uuid, Arc<Codex>>>>,
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) {
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let (codex, first_event, _ctrl_c, session_id) = match init_codex(config).await {
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Ok(res) => res,
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Err(e) => {
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let result = CallToolResult {
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content: vec![ContentBlock::TextContent(TextContent {
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r#type: "text".to_string(),
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text: format!("Failed to start Codex session: {e}"),
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annotations: None,
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})],
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is_error: Some(true),
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structured_content: None,
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};
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outgoing.send_response(id.clone(), result.into()).await;
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return;
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}
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};
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let codex = Arc::new(codex);
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// update the session map so we can retrieve the session in a reply, and then drop it, since
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// we no longer need it for this function
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session_map.lock().await.insert(session_id, codex.clone());
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drop(session_map);
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// Send initial SessionConfigured event.
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outgoing.send_event_as_notification(&first_event).await;
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// Use the original MCP request ID as the `sub_id` for the Codex submission so that
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// any events emitted for this tool-call can be correlated with the
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// originating `tools/call` request.
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let sub_id = match &id {
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RequestId::String(s) => s.clone(),
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RequestId::Integer(n) => n.to_string(),
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};
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let submission = Submission {
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id: sub_id.clone(),
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op: Op::UserInput {
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items: vec![InputItem::Text {
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text: initial_prompt.clone(),
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}],
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},
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};
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if let Err(e) = codex.submit_with_id(submission).await {
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tracing::error!("Failed to submit initial prompt: {e}");
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}
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run_codex_tool_session_inner(codex, outgoing, id).await;
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}
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pub async fn run_codex_tool_session_reply(
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codex: Arc<Codex>,
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outgoing: Arc<OutgoingMessageSender>,
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request_id: RequestId,
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prompt: String,
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) {
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if let Err(e) = codex
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.submit(Op::UserInput {
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items: vec![InputItem::Text { text: prompt }],
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})
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.await
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{
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tracing::error!("Failed to submit user input: {e}");
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}
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run_codex_tool_session_inner(codex, outgoing, request_id).await;
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}
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async fn run_codex_tool_session_inner(
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codex: Arc<Codex>,
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outgoing: Arc<OutgoingMessageSender>,
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request_id: RequestId,
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) {
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let request_id_str = match &request_id {
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RequestId::String(s) => s.clone(),
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RequestId::Integer(n) => n.to_string(),
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};
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// Stream events until the task needs to pause for user interaction or
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// completes.
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loop {
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match codex.next_event().await {
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Ok(event) => {
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outgoing.send_event_as_notification(&event).await;
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match event.msg {
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EventMsg::ExecApprovalRequest(ExecApprovalRequestEvent {
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command,
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cwd,
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reason: _,
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}) => {
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handle_exec_approval_request(
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command,
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cwd,
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outgoing.clone(),
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codex.clone(),
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request_id.clone(),
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request_id_str.clone(),
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event.id.clone(),
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)
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.await;
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continue;
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}
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EventMsg::ApplyPatchApprovalRequest(ApplyPatchApprovalRequestEvent {
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reason,
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grant_root,
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changes,
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}) => {
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handle_patch_approval_request(
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reason,
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grant_root,
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changes,
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outgoing.clone(),
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codex.clone(),
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request_id.clone(),
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request_id_str.clone(),
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event.id.clone(),
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)
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.await;
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continue;
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}
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EventMsg::TaskComplete(TaskCompleteEvent { last_agent_message }) => {
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let text = match last_agent_message {
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Some(msg) => msg.clone(),
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None => "".to_string(),
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};
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let result = CallToolResult {
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content: vec![ContentBlock::TextContent(TextContent {
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r#type: "text".to_string(),
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text,
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annotations: None,
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})],
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is_error: None,
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structured_content: None,
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};
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outgoing
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.send_response(request_id.clone(), result.into())
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.await;
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break;
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}
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EventMsg::SessionConfigured(_) => {
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tracing::error!("unexpected SessionConfigured event");
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}
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EventMsg::AgentMessageDelta(_) => {
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// TODO: think how we want to support this in the MCP
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}
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EventMsg::AgentReasoningDelta(_) => {
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// TODO: think how we want to support this in the MCP
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}
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EventMsg::AgentMessage(AgentMessageEvent { .. }) => {
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// TODO: think how we want to support this in the MCP
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}
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EventMsg::Error(_)
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| EventMsg::TaskStarted
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| EventMsg::TokenCount(_)
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| EventMsg::AgentReasoning(_)
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| EventMsg::McpToolCallBegin(_)
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| EventMsg::McpToolCallEnd(_)
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| EventMsg::ExecCommandBegin(_)
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| EventMsg::ExecCommandEnd(_)
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| EventMsg::BackgroundEvent(_)
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| EventMsg::PatchApplyBegin(_)
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| EventMsg::PatchApplyEnd(_)
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| EventMsg::GetHistoryEntryResponse(_) => {
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// For now, we do not do anything extra for these
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// events. Note that
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// send(codex_event_to_notification(&event)) above has
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// already dispatched these events as notifications,
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// though we may want to do give different treatment to
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// individual events in the future.
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}
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}
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}
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Err(e) => {
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let result = CallToolResult {
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content: vec![ContentBlock::TextContent(TextContent {
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r#type: "text".to_string(),
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text: format!("Codex runtime error: {e}"),
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annotations: None,
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})],
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is_error: Some(true),
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// TODO(mbolin): Could present the error in a more
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// structured way.
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structured_content: None,
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};
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outgoing
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.send_response(request_id.clone(), result.into())
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.await;
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break;
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}
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}
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}
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}
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