diff --git a/desktop/src/features/agents/ui/activityRenderClasses/LifecycleActivity.tsx b/desktop/src/features/agents/ui/activityRenderClasses/LifecycleActivity.tsx
index 1be598ee1e..629ad51a01 100644
--- a/desktop/src/features/agents/ui/activityRenderClasses/LifecycleActivity.tsx
+++ b/desktop/src/features/agents/ui/activityRenderClasses/LifecycleActivity.tsx
@@ -71,9 +71,12 @@ function defaultOptionLabel(kind: string): string {
  * Renders the agent's exact options as labeled buttons; a click sends the
  * `permission_decision` control event (fire-and-forget).
  *
- * On send failure (relay reject or non-`sent` delivery status), buttons are
- * re-enabled so the user can retry. The harness's 300 s fail-closed timeout
- * is the backstop for permanently lost frames.
+ * On authoritative delivery failure (`no_active_turn`, `channel_closed`,
+ * `no_channel`), buttons are re-enabled so the user can retry. The transient
+ * `channel_full` status does NOT re-enable buttons — the retransmit
+ * orchestrator handles that status automatically and keeps resending. The
+ * harness's 300 s fail-closed timeout is the backstop for permanently lost
+ * frames.
  */
 function PermissionDecisionButtons({
   agentPubkey,
diff --git a/desktop/src/features/agents/ui/agentSessionTypes.ts b/desktop/src/features/agents/ui/agentSessionTypes.ts
index 78c97353b5..e8118b03a0 100644
--- a/desktop/src/features/agents/ui/agentSessionTypes.ts
+++ b/desktop/src/features/agents/ui/agentSessionTypes.ts
@@ -162,11 +162,14 @@ export type TranscriptItem =
        */
       options?: Array<{ optionId: string; kind: string; label?: string }>;
       /**
-       * Monotonically increasing token incremented on every `control_result`
-       * with a non-`sent` delivery status. The `PermissionDecisionButtons`
-       * component keys its re-enable effect on this value, so a second failure
-       * after a retry (same boolean value would not re-trigger the effect)
-       * still re-enables the buttons. `undefined` when no failure has occurred.
+       * Monotonically increasing token incremented on every authoritative
+       * `control_result` delivery failure (`no_active_turn`, `channel_closed`,
+       * `no_channel`). The transient `channel_full` status does NOT increment
+       * this token — the retransmit orchestrator handles that status
+       * automatically. The `PermissionDecisionButtons` component keys its
+       * re-enable effect on this value, so a second failure after a retry
+       * (same boolean value would not re-trigger the effect) still re-enables
+       * the buttons. `undefined` when no failure has occurred.
        */
       deliveryFailed?: number;
     } & TranscriptItemIdentity)