From 6dde42e72b6f8a09c5c0387adff949f8a87bc234 Mon Sep 17 00:00:00 2001
From: Travis Dent <tcdent@gmail.com>
Date: Wed, 11 Jun 2025 10:40:54 -0700
Subject: [PATCH 1/3] Export OpenAI Response object on ResponseSpanData.

---
 packages/agents-core/src/tracing/spans.ts     |  2 ++
 packages/agents-core/test/tracing.test.ts     | 31 ++++++++++++++++++-
 .../agents-openai/src/openaiResponsesModel.ts |  8 ++---
 3 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/packages/agents-core/src/tracing/spans.ts b/packages/agents-core/src/tracing/spans.ts
index 6e39b168..bb043387 100644
--- a/packages/agents-core/src/tracing/spans.ts
+++ b/packages/agents-core/src/tracing/spans.ts
@@ -1,3 +1,4 @@
+import OpenAI from 'openai';
 import logger from '../logger';
 import { TracingProcessor } from './processor';
 import { generateSpanId, removePrivateFields, timeIso } from './utils';
@@ -38,6 +39,7 @@ export type ResponseSpanData = SpanDataBase & {
    * Not used by the OpenAI tracing provider but helpful for other tracing providers.
    */
   _input?: string | Record<string, any>[];
+  _response?: OpenAI.Responses.Response;
 };
 
 export type HandoffSpanData = SpanDataBase & {
diff --git a/packages/agents-core/test/tracing.test.ts b/packages/agents-core/test/tracing.test.ts
index 624679bf..32ef1fdb 100644
--- a/packages/agents-core/test/tracing.test.ts
+++ b/packages/agents-core/test/tracing.test.ts
@@ -10,7 +10,12 @@ import {
 
 import { Trace, NoopTrace } from '../src/tracing/traces';
 
-import { Span, CustomSpanData, NoopSpan } from '../src/tracing/spans';
+import {
+  Span,
+  CustomSpanData,
+  ResponseSpanData,
+  NoopSpan,
+} from '../src/tracing/spans';
 
 import {
   BatchTraceProcessor,
@@ -301,3 +306,27 @@ describe('TraceProvider disabled behaviour', () => {
     expect(span).toBeInstanceOf(NoopSpan);
   });
 });
+
+// -----------------------------------------------------------------------------------------
+// Tests for ResponseSpanData serialization
+// -----------------------------------------------------------------------------------------
+
+describe('ResponseSpanData serialization', () => {
+  it('removes private fields _input and _response from JSON output', () => {
+    const data: ResponseSpanData = {
+      type: 'response',
+      response_id: 'resp_123',
+      _input: 'private input data',
+      _response: { id: 'response_obj' } as any,
+    };
+
+    const span = new Span({ traceId: 'trace_123', data }, new TestProcessor());
+
+    const json = span.toJSON() as any;
+
+    expect(json.span_data.type).toBe('response');
+    expect(json.span_data.response_id).toBe('resp_123');
+    expect(json.span_data).not.toHaveProperty('_input');
+    expect(json.span_data).not.toHaveProperty('_response');
+  });
+});
diff --git a/packages/agents-openai/src/openaiResponsesModel.ts b/packages/agents-openai/src/openaiResponsesModel.ts
index c544ad10..26756efa 100644
--- a/packages/agents-openai/src/openaiResponsesModel.ts
+++ b/packages/agents-openai/src/openaiResponsesModel.ts
@@ -837,9 +837,8 @@ export class OpenAIResponsesModel implements Model {
 
       if (request.tracing) {
         span.spanData.response_id = response.id;
-        if (request.tracing === true) {
-          span.spanData._input = request.input;
-        }
+        span.spanData._input = request.input;
+        span.spanData._response = response;
       }
 
       return response;
@@ -931,8 +930,9 @@ export class OpenAIResponsesModel implements Model {
         };
       }
 
-      if (span && finalResponse && request.tracing) {
+      if (request.tracing && span && finalResponse) {
         span.spanData.response_id = finalResponse.id;
+        span.spanData._response = finalResponse;
       }
     } catch (error) {
       if (span) {

From 07252582fdc532e9481ba9c3b402641f674bcde3 Mon Sep 17 00:00:00 2001
From: Travis Dent <tcdent@gmail.com>
Date: Wed, 11 Jun 2025 11:07:28 -0700
Subject: [PATCH 2/3] Remove dependency on OpenAI types.

---
 packages/agents-core/src/tracing/spans.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/packages/agents-core/src/tracing/spans.ts b/packages/agents-core/src/tracing/spans.ts
index bb043387..850178cc 100644
--- a/packages/agents-core/src/tracing/spans.ts
+++ b/packages/agents-core/src/tracing/spans.ts
@@ -1,4 +1,3 @@
-import OpenAI from 'openai';
 import logger from '../logger';
 import { TracingProcessor } from './processor';
 import { generateSpanId, removePrivateFields, timeIso } from './utils';
@@ -39,7 +38,7 @@ export type ResponseSpanData = SpanDataBase & {
    * Not used by the OpenAI tracing provider but helpful for other tracing providers.
    */
   _input?: string | Record<string, any>[];
-  _response?: OpenAI.Responses.Response;
+  _response?: Record<string, any>;
 };
 
 export type HandoffSpanData = SpanDataBase & {

From 666306c4b00da2017583b645f19771e32c0b35c2 Mon Sep 17 00:00:00 2001
From: Dominik Kundel <dkundel@openai.com>
Date: Wed, 11 Jun 2025 11:31:05 -0700
Subject: [PATCH 3/3] Create clever-needles-flow.md

---
 .changeset/clever-needles-flow.md | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 .changeset/clever-needles-flow.md

diff --git a/.changeset/clever-needles-flow.md b/.changeset/clever-needles-flow.md
new file mode 100644
index 00000000..127f3a6d
--- /dev/null
+++ b/.changeset/clever-needles-flow.md
@@ -0,0 +1,6 @@
+---
+"@openai/agents-core": patch
+"@openai/agents-openai": patch
+---
+
+Add OpenAI Response object on ResponseSpanData for other exporters.