diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index a2c01480..6f45f896 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- Extension example: `notify.ts` for desktop notifications via OSC 777 escape sequence ([#658](https://github.com/badlogic/pi-mono/pull/658) by [@ferologics](https://github.com/ferologics))
+
 ## [0.43.0] - 2026-01-11
 
 ### Breaking Changes
diff --git a/packages/coding-agent/examples/extensions/README.md b/packages/coding-agent/examples/extensions/README.md
index b7da25bd..4a6931f3 100644
--- a/packages/coding-agent/examples/extensions/README.md
+++ b/packages/coding-agent/examples/extensions/README.md
@@ -48,6 +48,7 @@ cp permission-gate.ts ~/.pi/agent/extensions/
 | `send-user-message.ts` | Demonstrates `pi.sendUserMessage()` for sending user messages from extensions |
 | `timed-confirm.ts` | Demonstrates AbortSignal for auto-dismissing `ctx.ui.confirm()` and `ctx.ui.select()` dialogs |
 | `modal-editor.ts` | Custom vim-like modal editor via `ctx.ui.setEditorComponent()` |
+| `notify.ts` | Desktop notifications via OSC 777 when agent finishes (Ghostty, iTerm2, WezTerm) |
 
 ### Git Integration