diff --git a/hive-runtime/src/acp/rpc.rs b/hive-runtime/src/acp/rpc.rs
index 46b47a062..ddb9ba347 100644
--- a/hive-runtime/src/acp/rpc.rs
+++ b/hive-runtime/src/acp/rpc.rs
@@ -207,9 +207,12 @@ impl Drop for Connection {
     }
 }
 
-/// How many items wait for the harness before the oldest news is dropped. A
-/// turn drains the queue as it goes, so only an agent that talks while no turn
-/// runs gets near this; its items are thrown away at the next prompt anyway.
+/// How many items wait for the harness before new ones are dropped. A turn
+/// drains the queue as it goes, so only an agent that talks while no turn runs
+/// gets near this; its items are thrown away at the next prompt anyway. Keeping
+/// the oldest and dropping the newest means a sink that stalled mid-turn for
+/// this many items would lose the latest output; that is the right side to
+/// lose for the idle case this bounds.
 const INCOMING_CAP: usize = 4096;
 
 /// The sending half of the agent's output queue. A full queue drops the new
@@ -230,7 +233,7 @@ impl Feed {
                 if !self.full.swap(true, Ordering::Relaxed) {
                     tracing::warn!(
                         cap = INCOMING_CAP,
-                        "ACP agent output is not being read; dropping what it sends until a turn drains it"
+                        "ACP agent output is not being read; dropping what it sends once the queue is full (logged once per connection)"
                     );
                 }
                 true