Changes to add tool_type as dimension (#6538)

Co-authored-by: Ravikant Agarwal <ravikantag@google.com>

packages/core/src/telemetry/clearcut-logger/clearcut-logger.ts

@@ -450,6 +450,10 @@ export class ClearcutLogger {
         gemini_cli_key: EventMetadataKey.GEMINI_CLI_TOOL_CALL_ERROR_TYPE,
         value: JSON.stringify(event.error_type),
       },
+      {
+        gemini_cli_key: EventMetadataKey.GEMINI_CLI_TOOL_TYPE,
+        value: JSON.stringify(event.tool_type),
+      },
     ];
 
     if (event.metadata) {

packages/core/src/telemetry/clearcut-logger/event-metadata-key.ts

@@ -234,4 +234,7 @@ export enum EventMetadataKey {
 
   // Logs the number of tokens after context window compression.
   GEMINI_CLI_COMPRESSION_TOKENS_AFTER = 61,
+
+  // Logs tool type whether it is mcp or native.
+  GEMINI_CLI_TOOL_TYPE = 62,
 }

packages/core/src/telemetry/loggers.test.ts

@@ -524,6 +524,7 @@ describe('loggers', () => {
           success: true,
           decision: ToolCallDecision.ACCEPT,
           prompt_id: 'prompt-id-1',
+          tool_type: 'native',
         },
       });
 
@@ -533,6 +534,7 @@ describe('loggers', () => {
         100,
         true,
         ToolCallDecision.ACCEPT,
+        'native',
       );
 
       expect(mockUiEvent.addEvent).toHaveBeenCalledWith({
@@ -587,6 +589,7 @@ describe('loggers', () => {
           success: false,
           decision: ToolCallDecision.REJECT,
           prompt_id: 'prompt-id-2',
+          tool_type: 'native',
         },
       });
 
@@ -596,6 +599,7 @@ describe('loggers', () => {
         100,
         false,
         ToolCallDecision.REJECT,
+        'native',
       );
 
       expect(mockUiEvent.addEvent).toHaveBeenCalledWith({
@@ -653,6 +657,7 @@ describe('loggers', () => {
           success: true,
           decision: ToolCallDecision.MODIFY,
           prompt_id: 'prompt-id-3',
+          tool_type: 'native',
         },
       });
 
@@ -662,6 +667,7 @@ describe('loggers', () => {
         100,
         true,
         ToolCallDecision.MODIFY,
+        'native',
       );
 
       expect(mockUiEvent.addEvent).toHaveBeenCalledWith({
@@ -717,6 +723,7 @@ describe('loggers', () => {
           duration_ms: 100,
           success: true,
           prompt_id: 'prompt-id-4',
+          tool_type: 'native',
         },
       });
 
@@ -726,6 +733,7 @@ describe('loggers', () => {
         100,
         true,
         undefined,
+        'native',
       );
 
       expect(mockUiEvent.addEvent).toHaveBeenCalledWith({
@@ -786,6 +794,7 @@ describe('loggers', () => {
           error_type: ToolErrorType.UNKNOWN,
           'error.type': ToolErrorType.UNKNOWN,
           prompt_id: 'prompt-id-5',
+          tool_type: 'native',
         },
       });
 
@@ -795,6 +804,7 @@ describe('loggers', () => {
         100,
         false,
         undefined,
+        'native',
       );
 
       expect(mockUiEvent.addEvent).toHaveBeenCalledWith({

packages/core/src/telemetry/loggers.ts

@@ -148,6 +148,7 @@ export function logToolCall(config: Config, event: ToolCallEvent): void {
     event.duration_ms,
     event.success,
     event.decision,
+    event.tool_type,
   );
 }
 

packages/core/src/telemetry/metrics.ts

@@ -119,6 +119,7 @@ export function recordToolCallMetrics(
   durationMs: number,
   success: boolean,
   decision?: 'accept' | 'reject' | 'modify' | 'auto_accept',
+  tool_type?: 'native' | 'mcp',
 ): void {
   if (!toolCallCounter || !toolCallLatencyHistogram || !isMetricsInitialized)
     return;
@@ -128,6 +129,7 @@ export function recordToolCallMetrics(
     function_name: functionName,
     success,
     decision,
+    tool_type,
   };
   toolCallCounter.add(1, metricAttributes);
   toolCallLatencyHistogram.record(durationMs, {

packages/core/src/telemetry/types.ts

@@ -7,6 +7,7 @@
 import { GenerateContentResponseUsageMetadata } from '@google/genai';
 import { Config } from '../config/config.js';
 import { CompletedToolCall } from '../core/coreToolScheduler.js';
+import { DiscoveredMCPTool } from '../tools/mcp-tool.js';
 import { FileDiff } from '../tools/tools.js';
 import { AuthType } from '../core/contentGenerator.js';
 import {
@@ -114,6 +115,7 @@ export class ToolCallEvent implements BaseTelemetryEvent {
   error?: string;
   error_type?: string;
   prompt_id: string;
+  tool_type: 'native' | 'mcp';
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   metadata?: { [key: string]: any };
 
@@ -130,6 +132,10 @@ export class ToolCallEvent implements BaseTelemetryEvent {
     this.error = call.response.error?.message;
     this.error_type = call.response.errorType;
     this.prompt_id = call.request.prompt_id;
+    this.tool_type =
+      typeof call.tool !== 'undefined' && call.tool instanceof DiscoveredMCPTool
+        ? 'mcp'
+        : 'native';
 
     if (
       call.status === 'success' &&