Merge Commit 'f80eb71': [Part 3/6] feat(telemetry): enhance metrics with performance monitoring APIs (google-gemini#8113)

Author: thacio

packages/core/src/telemetry/constants.ts

@@ -48,3 +48,25 @@ export const METRIC_MODEL_ROUTING_FAILURE_COUNT =
   'gemini_cli.model_routing.failure.count';
 export const METRIC_MODEL_SLASH_COMMAND_CALL_COUNT =
   'gemini_cli.slash_command.model.call_count';
+
+// Performance Monitoring Metrics
+export const METRIC_STARTUP_TIME = 'gemini_cli.startup.duration';
+export const METRIC_MEMORY_USAGE = 'gemini_cli.memory.usage';
+export const METRIC_CPU_USAGE = 'gemini_cli.cpu.usage';
+export const METRIC_TOOL_QUEUE_DEPTH = 'gemini_cli.tool.queue.depth';
+export const METRIC_TOOL_EXECUTION_BREAKDOWN =
+  'gemini_cli.tool.execution.breakdown';
+export const METRIC_TOKEN_EFFICIENCY = 'gemini_cli.token.efficiency';
+export const METRIC_API_REQUEST_BREAKDOWN = 'gemini_cli.api.request.breakdown';
+export const METRIC_PERFORMANCE_SCORE = 'gemini_cli.performance.score';
+export const METRIC_REGRESSION_DETECTION = 'gemini_cli.performance.regression';
+export const METRIC_REGRESSION_PERCENTAGE_CHANGE =
+  'gemini_cli.performance.regression.percentage_change';
+export const METRIC_BASELINE_COMPARISON =
+  'gemini_cli.performance.baseline.comparison';
+
+// Performance Events
+export const EVENT_STARTUP_PERFORMANCE = 'gemini_cli.startup.performance';
+export const EVENT_MEMORY_USAGE = 'gemini_cli.memory.usage';
+export const EVENT_PERFORMANCE_BASELINE = 'gemini_cli.performance.baseline';
+export const EVENT_PERFORMANCE_REGRESSION = 'gemini_cli.performance.regression';

packages/core/src/telemetry/index.ts

@@ -74,3 +74,33 @@ export {
   recordUserActivity,
   isUserActive,
 } from './activity-detector.js';
+export {
+  // Core metrics functions
+  recordToolCallMetrics,
+  recordTokenUsageMetrics,
+  recordApiResponseMetrics,
+  recordApiErrorMetrics,
+  recordFileOperationMetric,
+  recordInvalidChunk,
+  recordContentRetry,
+  recordContentRetryFailure,
+  recordModelRoutingMetrics,
+  // Performance monitoring functions
+  recordStartupPerformance,
+  recordMemoryUsage,
+  recordCpuUsage,
+  recordToolQueueDepth,
+  recordToolExecutionBreakdown,
+  recordTokenEfficiency,
+  recordApiRequestBreakdown,
+  recordPerformanceScore,
+  recordPerformanceRegression,
+  recordBaselineComparison,
+  isPerformanceMonitoringActive,
+  // Performance monitoring types
+  PerformanceMetricType,
+  MemoryMetricType,
+  ToolExecutionPhase,
+  ApiRequestPhase,
+  FileOperation,
+} from './metrics.js';