Convert custom tool examples to subdirectory/index.ts structure

- hello.ts → hello/index.ts
- question.ts → question/index.ts
- todo.ts → todo/index.ts
- subagent/subagent.ts → subagent/index.ts

packages/coding-agent/examples/custom-tools/question/index.ts

@@ -0,0 +1,83 @@
+/**
+ * Question Tool - Let the LLM ask the user a question with options
+ */
+
+import { Type } from "@sinclair/typebox";
+import { Text } from "@mariozechner/pi-tui";
+import type { CustomAgentTool, CustomToolFactory } from "@mariozechner/pi-coding-agent";
+
+interface QuestionDetails {
+	question: string;
+	options: string[];
+	answer: string | null;
+}
+
+const QuestionParams = Type.Object({
+	question: Type.String({ description: "The question to ask the user" }),
+	options: Type.Array(Type.String(), { description: "Options for the user to choose from" }),
+});
+
+const factory: CustomToolFactory = (pi) => {
+	const tool: CustomAgentTool<typeof QuestionParams, QuestionDetails> = {
+		name: "question",
+		label: "Question",
+		description: "Ask the user a question and let them pick from options. Use when you need user input to proceed.",
+		parameters: QuestionParams,
+
+		async execute(_toolCallId, params) {
+			if (!pi.hasUI) {
+				return {
+					content: [{ type: "text", text: "Error: UI not available (running in non-interactive mode)" }],
+					details: { question: params.question, options: params.options, answer: null },
+				};
+			}
+
+			if (params.options.length === 0) {
+				return {
+					content: [{ type: "text", text: "Error: No options provided" }],
+					details: { question: params.question, options: [], answer: null },
+				};
+			}
+
+			const answer = await pi.ui.select(params.question, params.options);
+
+			if (answer === null) {
+				return {
+					content: [{ type: "text", text: "User cancelled the selection" }],
+					details: { question: params.question, options: params.options, answer: null },
+				};
+			}
+
+			return {
+				content: [{ type: "text", text: `User selected: ${answer}` }],
+				details: { question: params.question, options: params.options, answer },
+			};
+		},
+
+		renderCall(args, theme) {
+			let text = theme.fg("toolTitle", theme.bold("question ")) + theme.fg("muted", args.question);
+			if (args.options?.length) {
+				text += "\n" + theme.fg("dim", `  Options: ${args.options.join(", ")}`);
+			}
+			return new Text(text, 0, 0);
+		},
+
+		renderResult(result, _options, theme) {
+			const { details } = result;
+			if (!details) {
+				const text = result.content[0];
+				return new Text(text?.type === "text" ? text.text : "", 0, 0);
+			}
+
+			if (details.answer === null) {
+				return new Text(theme.fg("warning", "Cancelled"), 0, 0);
+			}
+
+			return new Text(theme.fg("success", "✓ ") + theme.fg("accent", details.answer), 0, 0);
+		},
+	};
+
+	return tool;
+};
+
+export default factory;