feat: add telemetry error capture to xAI provider

- Import TelemetryService from @roo-code/telemetry
- Import ApiProviderError from @roo-code/types
- Capture exceptions to telemetry in createMessage() catch block
- Capture exceptions to telemetry in completePrompt() catch block
- Add tests verifying telemetry capture on errors

Follows the same pattern as PR #10073 for OpenRouter.

src/api/providers/__tests__/xai.spec.ts

@@ -11,6 +11,16 @@ vitest.mock("openai", () => {
 	}
 })
 
+const mockCaptureException = vitest.fn()
+
+vitest.mock("@roo-code/telemetry", () => ({
+	TelemetryService: {
+		instance: {
+			captureException: (...args: unknown[]) => mockCaptureException(...args),
+		},
+	},
+}))
+
 import OpenAI from "openai"
 import type { Anthropic } from "@anthropic-ai/sdk"
 
@@ -25,6 +35,7 @@ describe("XAIHandler", () => {
 		// Reset all mocks
 		vi.clearAllMocks()
 		mockCreate.mockClear()
+		mockCaptureException.mockClear()
 
 		// Create handler with mock
 		handler = new XAIHandler({})
@@ -140,6 +151,66 @@ describe("XAIHandler", () => {
 		await expect(handler.completePrompt("test prompt")).rejects.toThrow(`xAI completion error: ${errorMessage}`)
 	})
 
+	describe("Telemetry Error Capture", () => {
+		it("captures telemetry when createMessage throws an exception", async () => {
+			const errorMessage = "Connection failed"
+			mockCreate.mockRejectedValueOnce(new Error(errorMessage))
+
+			const generator = handler.createMessage("test prompt", [])
+			await expect(generator.next()).rejects.toThrow()
+
+			expect(mockCaptureException).toHaveBeenCalledWith(
+				expect.objectContaining({
+					message: errorMessage,
+					provider: "xAI",
+					modelId: xaiDefaultModelId,
+					operation: "createMessage",
+				}),
+			)
+		})
+
+		it("captures telemetry when completePrompt throws an exception", async () => {
+			const errorMessage = "API error"
+			mockCreate.mockRejectedValueOnce(new Error(errorMessage))
+
+			await expect(handler.completePrompt("test prompt")).rejects.toThrow()
+
+			expect(mockCaptureException).toHaveBeenCalledWith(
+				expect.objectContaining({
+					message: errorMessage,
+					provider: "xAI",
+					modelId: xaiDefaultModelId,
+					operation: "completePrompt",
+				}),
+			)
+		})
+
+		it("captures telemetry with correct model ID when using a specific model", async () => {
+			const specificModelHandler = new XAIHandler({ apiModelId: "grok-3" })
+			const errorMessage = "Model error"
+			mockCreate.mockRejectedValueOnce(new Error(errorMessage))
+
+			await expect(specificModelHandler.completePrompt("test prompt")).rejects.toThrow()
+
+			expect(mockCaptureException).toHaveBeenCalledWith(
+				expect.objectContaining({
+					message: errorMessage,
+					provider: "xAI",
+					modelId: "grok-3",
+					operation: "completePrompt",
+				}),
+			)
+		})
+
+		it("captures telemetry and still re-throws the error", async () => {
+			const errorMessage = "Network error"
+			mockCreate.mockRejectedValueOnce(new Error(errorMessage))
+
+			await expect(handler.completePrompt("test prompt")).rejects.toThrow(`xAI completion error: ${errorMessage}`)
+			expect(mockCaptureException).toHaveBeenCalledTimes(1)
+		})
+	})
+
 	it("createMessage should yield text content from stream", async () => {
 		const testContent = "This is test content"
 

src/api/providers/xai.ts

@@ -1,7 +1,8 @@
 import { Anthropic } from "@anthropic-ai/sdk"
 import OpenAI from "openai"
 
-import { type XAIModelId, xaiDefaultModelId, xaiModels } from "@roo-code/types"
+import { type XAIModelId, xaiDefaultModelId, xaiModels, ApiProviderError } from "@roo-code/types"
+import { TelemetryService } from "@roo-code/telemetry"
 
 import { NativeToolCallParser } from "../../core/assistant-message/NativeToolCallParser"
 import type { ApiHandlerOptions } from "../../shared/api"
@@ -79,6 +80,9 @@ export class XAIHandler extends BaseProvider implements SingleCompletionHandler
 		try {
 			stream = await this.client.chat.completions.create(requestOptions)
 		} catch (error) {
+			const errorMessage = error instanceof Error ? error.message : String(error)
+			const apiError = new ApiProviderError(errorMessage, this.providerName, modelId, "createMessage")
+			TelemetryService.instance.captureException(apiError)
 			throw handleOpenAIError(error, this.providerName)
 		}
 
@@ -158,6 +162,9 @@ export class XAIHandler extends BaseProvider implements SingleCompletionHandler
 
 			return response.choices[0]?.message.content || ""
 		} catch (error) {
+			const errorMessage = error instanceof Error ? error.message : String(error)
+			const apiError = new ApiProviderError(errorMessage, this.providerName, modelId, "completePrompt")
+			TelemetryService.instance.captureException(apiError)
 			throw handleOpenAIError(error, this.providerName)
 		}
 	}