From 079fd2adb96bf1b66f3d339e6ee0c0b71f35c322 Mon Sep 17 00:00:00 2001
From: Kbediako <70529246+Kbediako@users.noreply.github.com>
Date: Thu, 22 Jan 2026 17:09:58 +1100
Subject: [PATCH] Fix: Lower log level for closed-channel send (#9653)

## What?
- Downgrade the closed-channel send error log to debug in
`codex-rs/core/src/codex.rs`.

## Why?
- `async_channel::Sender::send` only fails when the channel is closed,
so the current error-level log is noisy during normal shutdown. See
issue #9652.

## How?
- Replace the error log with a debug log on send failure.

## Tests
- `just fmt`
- `just fix -p codex-core`
- `cargo test -p codex-core`
---
 codex-rs/core/src/codex.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/codex-rs/core/src/codex.rs b/codex-rs/core/src/codex.rs
index f0ff887b01..cb81c9aa4d 100644
--- a/codex-rs/core/src/codex.rs
+++ b/codex-rs/core/src/codex.rs
@@ -1181,7 +1181,7 @@ impl Session {
         let rollout_items = vec![RolloutItem::EventMsg(event.msg.clone())];
         self.persist_rollout_items(&rollout_items).await;
         if let Err(e) = self.tx_event.send(event).await {
-            error!("failed to send tool call event: {e}");
+            debug!("dropping event because channel is closed: {e}");
         }
     }
 
@@ -1199,7 +1199,7 @@ impl Session {
             .await;
         self.flush_rollout().await;
         if let Err(e) = self.tx_event.send(event).await {
-            error!("failed to send tool call event: {e}");
+            debug!("dropping event because channel is closed: {e}");
         }
     }