merge PR #4641: fix: cramped slash autocomplete menu

packages/tui/CHANGELOG.md

@@ -18,6 +18,7 @@
 
 - Fixed autocompletion for absolute paths (such as `/tmp/...` or `/Users/...`) at the start of a prompt, ensuring they fall back to file-path completion instead of being incorrectly treated as slash commands.
 - Updated absolute path autocompletion behavior so that accepting a suggestion inserts the path without submitting the prompt.
+- Kept slash command autocomplete rows compact by truncating descriptions instead of wrapping them into multi-line blocks.
 
 ## [16.3.7] - 2026-07-05
 

packages/tui/src/components/editor.ts

@@ -31,7 +31,6 @@ const SLASH_COMMAND_SELECT_LIST_LAYOUT: SelectListLayoutOptions = {
 	minPrimaryColumnWidth: 12,
 	maxPrimaryColumnWidth: 32,
 	overflowSearch: false,
-	wrapDescription: true,
 };
 
 function sanitizeLoadedText(text: string): string {

packages/tui/test/editor.test.ts

@@ -309,6 +309,31 @@ describe("Editor component", () => {
 			await expect(promise).resolves.toBe("/");
 		});
 
+		it("renders slash-command suggestions as compact item rows", async () => {
+			const editor = new Editor(defaultEditorTheme);
+			editor.setAutocompleteMaxVisible(10);
+			const longDescription =
+				"Plan and execute non-trivial architectural improvements to the codebase without turning each slash command into a multi-line block.";
+			editor.setAutocompleteProvider(
+				new CombinedAutocompleteProvider(
+					Array.from({ length: 12 }, (_, i) => ({
+						name: `cmd${i}`,
+						description: longDescription,
+					})),
+					"/tmp",
+				),
+			);
+
+			editor.handleInput("/");
+			await Bun.sleep(0);
+
+			const rendered = editor.render(80).map(line => stripVTControlCharacters(line));
+			for (let i = 0; i < 10; i += 1) {
+				expect(rendered.some(line => line.includes(`cmd${i}`))).toBe(true);
+			}
+			expect(rendered.some(line => line.includes("cmd10"))).toBe(false);
+		});
+
 		it("triggers file-reference autocomplete when typing at-sign", async () => {
 			const editor = new Editor(defaultEditorTheme);
 			const { promise, resolve } = Promise.withResolvers<string>();