@sentry/node/build/esm/integrations/tracing/anthropic-ai/instrumentation.js

Sentry Node SDK using OpenTelemetry for performance instrumentation

import { InstrumentationBase, InstrumentationNodeModuleDefinition } from '@opentelemetry/instrumentation';
import { SDK_VERSION, getCurrentScope, ANTHROPIC_AI_INTEGRATION_NAME, instrumentAnthropicAiClient } from '@sentry/core';

const supportedVersions = ['>=0.19.2 <1.0.0'];

/**
 * Determines telemetry recording settings.
 */
function determineRecordingSettings(
  integrationOptions,
  defaultEnabled,
) {
  const recordInputs = integrationOptions?.recordInputs ?? defaultEnabled;
  const recordOutputs = integrationOptions?.recordOutputs ?? defaultEnabled;
  return { recordInputs, recordOutputs };
}

/**
 * Sentry Anthropic AI instrumentation using OpenTelemetry.
 */
class SentryAnthropicAiInstrumentation extends InstrumentationBase {
   constructor(config = {}) {
    super('@sentry/instrumentation-anthropic-ai', SDK_VERSION, config);
  }

  /**
   * Initializes the instrumentation by defining the modules to be patched.
   */
   init() {
    const module = new InstrumentationNodeModuleDefinition(
      '@anthropic-ai/sdk',
      supportedVersions,
      this._patch.bind(this),
    );
    return module;
  }

  /**
   * Core patch logic applying instrumentation to the Anthropic AI client constructor.
   */
   _patch(exports) {
    const Original = exports.Anthropic;

    const WrappedAnthropic = function ( ...args) {
      const instance = Reflect.construct(Original, args);
      const scopeClient = getCurrentScope().getClient();
      const integration = scopeClient?.getIntegrationByName(ANTHROPIC_AI_INTEGRATION_NAME);
      const integrationOpts = integration?.options;
      const defaultPii = Boolean(scopeClient?.getOptions().sendDefaultPii);

      const { recordInputs, recordOutputs } = determineRecordingSettings(integrationOpts, defaultPii);

      return instrumentAnthropicAiClient(instance , {
        recordInputs,
        recordOutputs,
      });
    } ;

    // Preserve static and prototype chains
    Object.setPrototypeOf(WrappedAnthropic, Original);
    Object.setPrototypeOf(WrappedAnthropic.prototype, Original.prototype);

    for (const key of Object.getOwnPropertyNames(Original)) {
      if (!['length', 'name', 'prototype'].includes(key)) {
        const descriptor = Object.getOwnPropertyDescriptor(Original, key);
        if (descriptor) {
          Object.defineProperty(WrappedAnthropic, key, descriptor);
        }
      }
    }

    // Constructor replacement - handle read-only properties
    // The Anthropic property might have only a getter, so use defineProperty
    try {
      exports.Anthropic = WrappedAnthropic;
    } catch (error) {
      // If direct assignment fails, override the property descriptor
      Object.defineProperty(exports, 'Anthropic', {
        value: WrappedAnthropic,
        writable: true,
        configurable: true,
        enumerable: true,
      });
    }

    // Wrap the default export if it points to the original constructor
    // Constructor replacement - handle read-only properties
    // The Anthropic property might have only a getter, so use defineProperty
    if (exports.default === Original) {
      try {
        exports.default = WrappedAnthropic;
      } catch (error) {
        // If direct assignment fails, override the property descriptor
        Object.defineProperty(exports, 'default', {
          value: WrappedAnthropic,
          writable: true,
          configurable: true,
          enumerable: true,
        });
      }
    }
    return exports;
  }
}

export { SentryAnthropicAiInstrumentation };
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