feat: Shift+Tab cycles work modes, Ctrl+T cycles thinking level

- Shift+Tab: cycles work mode (chat→plan→build→review→repair→research)
  when idle; opens steerable panel during autonomous execution
- Ctrl+T: cycles thinking level (replaces shift+tab binding)
- Removed toggleThinking from default Ctrl+T (superseded by cycleThinkingLevel)
- Drop hint for toggleThinking from interactive mode help text

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

packages/pi-coding-agent/src/core/keybindings.ts

@@ -55,12 +55,12 @@ const DEFAULT_APP_KEYBINDINGS: Record<AppAction, KeyId | KeyId[]> = {
 	clear: "ctrl+c",
 	exit: "ctrl+d",
 	suspend: "ctrl+z",
-	cycleThinkingLevel: "shift+tab",
+	cycleThinkingLevel: "ctrl+t",
 	cycleModelForward: "ctrl+p",
 	cycleModelBackward: "shift+ctrl+p",
 	selectModel: "ctrl+l",
 	expandTools: "ctrl+o",
-	toggleThinking: "ctrl+t",
+	toggleThinking: [],
 	toggleSessionNamedFilter: "ctrl+n",
 	externalEditor: "ctrl+g",
 	followUp: ["alt+enter", "ctrl+enter"],

packages/pi-coding-agent/src/modes/interactive/interactive-mode.ts

@@ -673,7 +673,6 @@ export class InteractiveMode {
 				),
 				hint("selectModel", "to select model"),
 				hint("expandTools", "to expand tools"),
-				hint("toggleThinking", "to expand thinking"),
 				hint("externalEditor", "for external editor"),
 				rawKeyHint("/", "for commands"),
 				rawKeyHint("!", "to run bash"),

src/resources/extensions/sf/steerable-autonomous-extension.js

@@ -1,15 +1,20 @@
 /**
  * Steerable Autonomous Extension - Copilot Auto-style controls
  *
- * Provides Shift+Tab interface for steering and asking questions
- * during autonomous execution, similar to Copilot Auto.
- * Also integrates Ctrl+Y for YOLO mode (bypass git prompts).
+ * Purpose: provide Shift+Tab for run-control cycling (manual → assisted →
+ * autonomous) when the session is idle, and for steering/asking questions
+ * during autonomous execution (Copilot Auto style). Also integrates Ctrl+Y
+ * for YOLO mode (bypass git prompts).
+ *
+ * Consumer: index.js → steerableAutonomousExtension(pi) on every startup.
  */
 
 import {
 	handleSteerableModeKey,
 	SteerableAutonomousPanel,
 } from "./steerable-autonomous-panel.js";
+import { WORK_MODES } from "./operating-model.js";
+import { getAutoSession } from "./auto/session.js";
 
 export default function steerableAutonomousExtension(api) {
 	let panel = null;
@@ -26,22 +31,34 @@ export default function steerableAutonomousExtension(api) {
 
 	// Handle key events - Shift+Tab and Ctrl+Y
 	api.registerShortcut("shift+tab", {
-		description: "Open/close steerable autonomous panel",
+		description:
+			"Cycle work mode (chat → plan → build → review → repair → research) or open steerable panel during autonomous",
 		handler: async (event, ctx) => {
-			if (!isAutonomousActive) {
-				ctx.ui.notify(
-					"Autonomous mode not active - use /autonomous to start",
-					"info",
-				);
+			if (isAutonomousActive) {
+				// During autonomous execution: toggle steering panel
+				if (panel) {
+					panel.hide();
+					panel = null;
+				} else {
+					panel = new SteerableAutonomousPanel(ctx);
+					await panel.show();
+				}
 				return;
 			}
 
-			if (panel) {
-				panel.hide();
-				panel = null;
-			} else {
-				panel = new SteerableAutonomousPanel(ctx);
-				await panel.show();
+			// Outside autonomous: cycle work mode
+			try {
+				const s = getAutoSession();
+				const current = s.getMode().workMode;
+				const idx = WORK_MODES.indexOf(current);
+				const next = WORK_MODES[(idx + 1) % WORK_MODES.length];
+				s.setMode({ workMode: next });
+				ctx.ui.notify(`Work mode: ${current} → ${next}`, "info");
+			} catch {
+				ctx.ui.notify(
+					"Work mode: use /mode <chat|plan|build|review|repair|research>",
+					"info",
+				);
 			}
 		},
 	});
@@ -66,7 +83,7 @@ export default function steerableAutonomousExtension(api) {
 
 	// Handle slash command for panel
 	api.registerCommand("steer", {
-		description: "Open steerable autonomous panel (Shift+Tab)",
+		description: "Open steerable autonomous panel (Shift+Tab during autonomous)",
 		handler: async (_, ctx) => {
 			if (!isAutonomousActive) {
 				ctx.ui.notify(
@@ -89,7 +106,10 @@ export default function steerableAutonomousExtension(api) {
 	// Listen for autonomous mode changes
 	api.on("autonomous_start", async (_, ctx) => {
 		isAutonomousActive = true;
-		ctx.ui.notify("🤖 Autonomous mode active - Shift+Tab to steer", "info");
+		ctx.ui.notify(
+			"🤖 Autonomous mode active — Shift+Tab to steer",
+			"info",
+		);
 	});
 
 	api.on("autonomous_stop", async (_, ctx) => {