Add extension mode context

packages/coding-agent/examples/extensions/custom-header.ts

@@ -47,7 +47,7 @@ function getPiMascot(theme: Theme): string[] {
 export default function (pi: ExtensionAPI) {
 	// Set custom header immediately on load (if UI is available)
 	pi.on("session_start", async (_event, ctx) => {
-		if (ctx.hasUI) {
+		if (ctx.mode === "tui") {
 			ctx.ui.setHeader((_tui, theme) => {
 				return {
 					render(_width: number): string[] {

packages/coding-agent/examples/extensions/doom-overlay/index.ts

@@ -23,7 +23,7 @@ export default function (pi: ExtensionAPI) {
 		description: "Play DOOM as an overlay. Q to pause and exit.",
 
 		handler: async (args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("DOOM requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/handoff.ts

@@ -81,7 +81,7 @@ export default function (pi: ExtensionAPI) {
 	pi.registerCommand("handoff", {
 		description: "Transfer context to a new focused session",
 		handler: async (args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("handoff requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/interactive-shell.ts

@@ -146,7 +146,7 @@ export default function (pi: ExtensionAPI) {
 		}
 
 		// No UI available (print mode, RPC, etc.)
-		if (!ctx.hasUI) {
+		if (ctx.mode !== "tui") {
 			return {
 				result: { output: "(interactive commands require TUI)", exitCode: 1, cancelled: false, truncated: false },
 			};

packages/coding-agent/examples/extensions/qna.ts

@@ -31,7 +31,7 @@ export default function (pi: ExtensionAPI) {
 	pi.registerCommand("qna", {
 		description: "Extract questions from last assistant message into editor",
 		handler: async (_args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("qna requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/question.ts

@@ -41,7 +41,7 @@ export default function question(pi: ExtensionAPI) {
 		parameters: QuestionParams,
 
 		async execute(_toolCallId, params, _signal, _onUpdate, ctx) {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				return {
 					content: [{ type: "text", text: "Error: UI not available (running in non-interactive mode)" }],
 					details: {

packages/coding-agent/examples/extensions/questionnaire.ts

@@ -82,7 +82,7 @@ export default function questionnaire(pi: ExtensionAPI) {
 		parameters: QuestionnaireParams,
 
 		async execute(_toolCallId, params, _signal, _onUpdate, ctx) {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				return errorResult("Error: UI not available (running in non-interactive mode)");
 			}
 			if (params.questions.length === 0) {

packages/coding-agent/examples/extensions/snake.ts

@@ -311,7 +311,7 @@ export default function (pi: ExtensionAPI) {
 		description: "Play Snake!",
 
 		handler: async (_args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("Snake requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/space-invaders.ts

@@ -529,7 +529,7 @@ export default function (pi: ExtensionAPI) {
 		description: "Play Space Invaders!",
 
 		handler: async (_args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("Space Invaders requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/summarize.ts

@@ -115,7 +115,7 @@ const buildSummaryPrompt = (conversationText: string): string =>
 	].join("\n");
 
 const showSummaryUi = async (summary: string, ctx: ExtensionCommandContext) => {
-	if (!ctx.hasUI) {
+	if (ctx.mode !== "tui") {
 		return;
 	}
 

packages/coding-agent/examples/extensions/tic-tac-toe.ts

@@ -779,7 +779,7 @@ Decide the target cell first, then dump every action for the turn in one go.
 		description: "Play tic-tac-toe against the agent",
 
 		handler: async (_args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("Tic-tac-toe requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/todo.ts

@@ -284,7 +284,7 @@ export default function (pi: ExtensionAPI) {
 	pi.registerCommand("todos", {
 		description: "Show all todos on the current branch",
 		handler: async (_args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("/todos requires interactive mode", "error");
 				return;
 			}

packages/coding-agent/examples/extensions/tools.ts

@@ -67,6 +67,11 @@ export default function toolsExtension(pi: ExtensionAPI) {
 	pi.registerCommand("tools", {
 		description: "Enable/disable tools",
 		handler: async (_args, ctx) => {
+			if (ctx.mode !== "tui") {
+				ctx.ui.notify("/tools requires TUI mode", "error");
+				return;
+			}
+
 			// Refresh tool list
 			allTools = pi.getAllTools();