1 files changed, 24 insertions, 0 deletions
diff --git a/packages/core/src/telemetry/constants.ts b/packages/core/src/telemetry/constants.ts
new file mode 100644
index 00000000..67d5b38b
--- /dev/null
+++ b/packages/core/src/telemetry/constants.ts
@@ -0,0 +1,24 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { randomUUID } from 'crypto';
+
+export const SERVICE_NAME = 'gemini-code';
+export const sessionId = randomUUID();
+
+export const EVENT_USER_PROMPT = 'gemini_code.user_prompt';
+export const EVENT_TOOL_CALL = 'gemini_code.tool_call';
+export const EVENT_API_REQUEST = 'gemini_code.api_request';
+export const EVENT_API_ERROR = 'gemini_code.api_error';
+export const EVENT_API_RESPONSE = 'gemini_code.api_response';
+export const EVENT_CLI_CONFIG = 'gemini_code.config';
+
+export const METRIC_TOOL_CALL_COUNT = 'gemini_code.tool.call.count';
+export const METRIC_TOOL_CALL_LATENCY = 'gemini_code.tool.call.latency';
+export const METRIC_API_REQUEST_COUNT = 'gemini_code.api.request.count';
+export const METRIC_API_REQUEST_LATENCY = 'gemini_code.api.request.latency';
+export const METRIC_TOKEN_INPUT_COUNT = 'gemini_code.token.input.count';
+export const METRIC_SESSION_COUNT = 'gemini_code.session.count';