diff --git a/packages/coding-agent/src/modes/components/custom-editor.ts b/packages/coding-agent/src/modes/components/custom-editor.ts
index 1cc4e32d7..9e27cbb4b 100644
--- a/packages/coding-agent/src/modes/components/custom-editor.ts
+++ b/packages/coding-agent/src/modes/components/custom-editor.ts
@@ -586,8 +586,15 @@ export class CustomEditor extends Editor {
 				return;
 			}
 
-			// Intercept configured retry shortcut
+			// Intercept configured retry shortcut. Later user/custom handlers keep
+			// precedence so adding the default Alt+R binding does not steal existing
+			// shortcuts such as app.plan.toggle or extension commands.
 			if (this.#matchesAction(canonical, "app.retry") && this.onRetry) {
+				const customHandler = this.#customMatchKeys.get(canonical);
+				if (customHandler) {
+					customHandler();
+					return;
+				}
 				this.onRetry();
 				return;
 			}
diff --git a/packages/coding-agent/test/custom-editor-keybindings.test.ts b/packages/coding-agent/test/custom-editor-keybindings.test.ts
index 3e40f027a..e0f3a71fa 100644
--- a/packages/coding-agent/test/custom-editor-keybindings.test.ts
+++ b/packages/coding-agent/test/custom-editor-keybindings.test.ts
@@ -17,4 +17,17 @@ describe("CustomEditor keybindings", () => {
 
 		expect(onRetry).toHaveBeenCalledTimes(1);
 	});
+
+	it("lets custom handlers keep precedence over the default retry chord", () => {
+		const editor = new CustomEditor(getEditorTheme());
+		const onRetry = vi.fn();
+		const customHandler = vi.fn();
+
+		editor.onRetry = onRetry;
+		editor.setCustomKeyHandler("alt+r", customHandler);
+		editor.handleInput("\x1br");
+
+		expect(customHandler).toHaveBeenCalledTimes(1);
+		expect(onRetry).not.toHaveBeenCalled();
+	});
 });