fix(tui): bind ctrl+j as newline by default

packages/tui/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Added `Ctrl+J` as a default newline keybinding alongside `Shift+Enter`.
+
 ## [0.79.10] - 2026-06-22
 
 ## [0.79.9] - 2026-06-20

packages/tui/src/keybindings.ts

@@ -115,7 +115,7 @@ export const TUI_KEYBINDINGS = {
 	"tui.editor.yank": { defaultKeys: "ctrl+y", description: "Yank" },
 	"tui.editor.yankPop": { defaultKeys: "alt+y", description: "Yank pop" },
 	"tui.editor.undo": { defaultKeys: "ctrl+-", description: "Undo" },
-	"tui.input.newLine": { defaultKeys: "shift+enter", description: "Insert newline" },
+	"tui.input.newLine": { defaultKeys: ["shift+enter", "ctrl+j"], description: "Insert newline" },
 	"tui.input.submit": { defaultKeys: "enter", description: "Submit input" },
 	"tui.input.tab": { defaultKeys: "tab", description: "Tab / autocomplete" },
 	"tui.input.copy": { defaultKeys: "ctrl+c", description: "Copy selection" },

packages/tui/test/keybindings.test.ts

@@ -3,6 +3,14 @@ import { describe, it } from "node:test";
 import { KeybindingsManager, TUI_KEYBINDINGS } from "../src/keybindings.ts";
 
 describe("KeybindingsManager", () => {
+	it("binds Ctrl+J as a default newline alias", () => {
+		const keybindings = new KeybindingsManager(TUI_KEYBINDINGS);
+
+		assert.deepStrictEqual(keybindings.getKeys("tui.input.newLine"), ["shift+enter", "ctrl+j"]);
+		assert.strictEqual(keybindings.matches("\n", "tui.input.newLine"), true);
+		assert.strictEqual(keybindings.matches("\x1b[106;5u", "tui.input.newLine"), true);
+	});
+
 	it("does not evict selector confirm when input submit is rebound", () => {
 		const keybindings = new KeybindingsManager(TUI_KEYBINDINGS, {
 			"tui.input.submit": ["enter", "ctrl+enter"],