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[codex] drain mailbox only at request boundaries (#17749)

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This changes multi-agent v2 mailbox handling so incoming inter-agent
messages no longer preempt an in-flight sampling stream at reasoning or
commentary output-item boundaries.
This commit is contained in:
Thibault Sottiaux
2026-04-13 22:09:51 -07:00
committed by GitHub
parent ad37389c18
commit 05c5829923
4 changed files with 24 additions and 51 deletions
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39
codex-rs/core/tests/suite/pending_input.rs
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@@ -313,7 +313,7 @@ async fn injected_user_input_triggers_follow_up_request_with_deltas() {
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn queued_inter_agent_mail_triggers_follow_up_after_reasoning_item() {
async fn queued_inter_agent_mail_waits_for_request_boundary_after_reasoning_item() {
let (gate_reasoning_done_tx, gate_reasoning_done_rx) = oneshot::channel();
let first_chunks = vec![
@@ -323,14 +323,18 @@ async fn queued_inter_agent_mail_triggers_follow_up_after_reasoning_item() {
gate_reasoning_done_rx,
vec![
ev_reasoning_item("reason-1", &["thinking"], &[]),
ev_function_call(
"call-stale",
"shell",
r#"{"command":"echo stale tool call"}"#,
),
ev_message_item_added("msg-stale", ""),
ev_output_text_delta("stale final"),
ev_message_item_done("msg-stale", "stale final"),
ev_message_item_added("msg-preserved", ""),
ev_output_text_delta("preserved commentary"),
json!({
"type": "response.output_item.done",
"item": {
"type": "message",
"role": "assistant",
"id": "msg-preserved",
"content": [{"type": "output_text", "text": "preserved commentary"}],
"phase": "commentary",
}
}),
ev_completed("resp-1"),
],
),
@@ -358,7 +362,7 @@ async fn queued_inter_agent_mail_triggers_follow_up_after_reasoning_item() {
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn queued_inter_agent_mail_triggers_follow_up_after_commentary_message_item() {
async fn queued_inter_agent_mail_waits_for_request_boundary_after_commentary_message_item() {
let (gate_message_done_tx, gate_message_done_rx) = oneshot::channel();
let first_chunks = vec![
@@ -367,25 +371,18 @@ async fn queued_inter_agent_mail_triggers_follow_up_after_commentary_message_ite
gated_chunk(
gate_message_done_rx,
vec![
ev_output_text_delta("first answer"),
ev_output_text_delta("first commentary"),
json!({
"type": "response.output_item.done",
"item": {
"type": "message",
"role": "assistant",
"id": "msg-1",
"content": [{"type": "output_text", "text": "first answer"}],
"content": [{"type": "output_text", "text": "first commentary"}],
"phase": "commentary",
}
}),
ev_function_call(
"call-stale",
"shell",
r#"{"command":"echo stale tool call"}"#,
),
ev_message_item_added("msg-stale", ""),
ev_output_text_delta("stale final"),
ev_message_item_done("msg-stale", "stale final"),
ev_function_call("call-preserved", "test_tool", "{}"),
ev_completed("resp-1"),
],
),
@@ -411,7 +408,7 @@ async fn queued_inter_agent_mail_triggers_follow_up_after_commentary_message_ite
let _ = gate_message_done_tx.send(());
wait_for_agent_message(&codex, "first answer").await;
wait_for_agent_message(&codex, "first commentary").await;
wait_for_turn_complete(&codex).await;