diff --git a/NOTICE b/NOTICE
index 63ccbf7..1015e64 100644
--- a/NOTICE
+++ b/NOTICE
@@ -8,7 +8,8 @@ projects, each retaining its original license:
 extensions/notify.ts
   Derived from mitsuhiko/agent-stuff (Apache-2.0):
   https://github.com/mitsuhiko/agent-stuff/blob/main/extensions/notify.ts
-  Modified: simplified to OSC 777 notifications only.
+  Modified: simplified to OSC 777 notifications only; notify on agent_settled
+  rather than agent_end.
 
 extensions/goal.ts
   Derived from mitsuhiko/agent-stuff (Apache-2.0):
diff --git a/extensions/notify.ts b/extensions/notify.ts
index 10151e1..6e629bc 100644
--- a/extensions/notify.ts
+++ b/extensions/notify.ts
@@ -4,6 +4,10 @@
  * Sends a native terminal notification via OSC 777 when Pi is done and
  * waiting for input. Works in Ghostty, iTerm2, WezTerm, and rxvt-unicode.
  *
+ * Pi's own OSC 7501 program status (1.1.0+) reports state to terminals that
+ * support that protocol; Ghostty does not, so this stays the only thing that
+ * raises a notification here.
+ *
  * Derived from [mitsuhiko/agent-stuff
  * `extensions/notify.ts`](https://github.com/mitsuhiko/agent-stuff/blob/main/extensions/notify.ts)
  * (Apache-2.0) — simplified to OSC 777 only; also mirrored in pi's examples.
@@ -12,7 +16,10 @@
 import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";
 
 export default function (pi: ExtensionAPI) {
-	pi.on("agent_end", async () => {
+	// `agent_end` fires after each low-level run, so it can notify while Pi is
+	// still retrying, compacting, or working through queued follow-ups.
+	// `agent_settled` is the final, notification-only boundary.
+	pi.on("agent_settled", async () => {
 		process.stdout.write("\x1b]777;notify;Pi;Ready for input\x07");
 	});
 }