Custom tool calling (RooCodeInc#10083)

Author: cte

.roo/tools/__tests__/system-time.spec.ts

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+import type { CustomToolContext, TaskLike } from "@roo-code/types"
+
+import systemTime from "../system-time.js"
+
+const mockContext: CustomToolContext = {
+	mode: "code",
+	task: { taskId: "test-task-id" } as unknown as TaskLike,
+}
+
+describe("system-time tool", () => {
+	describe("execute", () => {
+		it("should return a formatted date/time string", async () => {
+			const result = await systemTime.execute({}, mockContext)
+			expect(result).toMatch(/^The current date and time is:/)
+			expect(result).toMatch(/(Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday)/)
+			expect(result).toMatch(
+				/(January|February|March|April|May|June|July|August|September|October|November|December)/,
+			)
+			expect(result).toMatch(/\d{1,2}:\d{2}:\d{2}/)
+		})
+	})
+})

.roo/tools/eslint.config.mjs

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+import { config } from "@roo-code/config-eslint/base"
+
+/** @type {import("eslint").Linter.Config} */
+export default [...config]

.roo/tools/package.json

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+{
+	"name": "@roo-code/custom-tools",
+	"version": "0.0.0",
+	"private": true,
+	"type": "module",
+	"description": "Custom tools for the Roo Code project itself",
+	"scripts": {
+		"lint": "eslint . --ext=ts --max-warnings=0",
+		"check-types": "tsc --noEmit",
+		"test": "vitest run"
+	},
+	"devDependencies": {
+		"@roo-code/config-eslint": "workspace:^",
+		"@roo-code/config-typescript": "workspace:^",
+		"@roo-code/types": "workspace:^",
+		"vitest": "^3.2.3"
+	}
+}

.roo/tools/system-time.ts

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+import { parametersSchema, defineCustomTool } from "@roo-code/types"
+
+export default defineCustomTool({
+	name: "system_time",
+	description: "Returns the current system date and time in a friendly, human-readable format.",
+	parameters: parametersSchema.object({}),
+	async execute() {
+		const systemTime = new Date().toLocaleString("en-US", {
+			weekday: "long",
+			year: "numeric",
+			month: "long",
+			day: "numeric",
+			hour: "2-digit",
+			minute: "2-digit",
+			second: "2-digit",
+			timeZoneName: "short",
+			timeZone: "America/Los_Angeles",
+		})
+
+		return `The current date and time is: ${systemTime}`
+	},
+})

.roo/tools/tsconfig.json

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+{
+	"extends": "@roo-code/config-typescript/base.json",
+	"compilerOptions": {
+		"noEmit": true,
+		"types": ["vitest/globals"]
+	},
+	"include": ["*.ts", "__tests__/*.ts"],
+	"exclude": ["node_modules"]
+}

.roo/tools/vitest.config.ts

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+import { defineConfig } from "vitest/config"
+
+export default defineConfig({
+	test: {
+		globals: true,
+		environment: "node",
+		watch: false,
+	},
+})