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fix: emit integer output_index in Chat Completions streaming events #3113

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Quratulain-bilal wants to merge 2 commits into from
+8 −16
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fix: emit integer output_index in Chat Completions streaming events #3113

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41a7ad7
fix: emit integer output_index in Chat Completions streaming events
May 4, 2026
f947c2a
Merge branch 'main' into fix/chatcmpl-output-index-bool-expression
Quratulain-bilal May 4, 2026
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24 changes: 8 additions & 16 deletions src/agents/models/chatcmpl_stream_handler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -341,16 +341,14 @@ async def handle_stream(
# Notify consumers of the start of a new output message + first content part
yield ResponseOutputItemAddedEvent(
item=assistant_item,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
type="response.output_item.added",
sequence_number=sequence_number.get_and_increment(),
)
yield ResponseContentPartAddedEvent(
content_index=state.text_content_index_and_output[0],
item_id=FAKE_RESPONSES_ID,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
part=ResponseOutputText(
text="",
type="output_text",
Expand All @@ -374,8 +372,7 @@ async def handle_stream(
content_index=state.text_content_index_and_output[0],
delta=delta.content,
item_id=FAKE_RESPONSES_ID,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
type="response.output_text.delta",
sequence_number=sequence_number.get_and_increment(),
logprobs=delta_logprobs,
Expand Down Expand Up @@ -415,8 +412,7 @@ async def handle_stream(
# Notify downstream that assistant message + first content part are starting
yield ResponseOutputItemAddedEvent(
item=assistant_item,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
type="response.output_item.added",
sequence_number=sequence_number.get_and_increment(),
)
Expand All @@ -436,8 +432,7 @@ async def handle_stream(
content_index=state.refusal_content_index_and_output[0],
delta=delta.refusal,
item_id=FAKE_RESPONSES_ID,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
type="response.refusal.delta",
sequence_number=sequence_number.get_and_increment(),
)
Expand Down Expand Up @@ -603,8 +598,7 @@ async def handle_stream(
yield ResponseContentPartDoneEvent(
content_index=state.text_content_index_and_output[0],
item_id=FAKE_RESPONSES_ID,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
part=state.text_content_index_and_output[1],
type="response.content_part.done",
sequence_number=sequence_number.get_and_increment(),
Expand All @@ -616,8 +610,7 @@ async def handle_stream(
yield ResponseContentPartDoneEvent(
content_index=state.refusal_content_index_and_output[0],
item_id=FAKE_RESPONSES_ID,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
part=state.refusal_content_index_and_output[1],
type="response.content_part.done",
sequence_number=sequence_number.get_and_increment(),
Expand Down Expand Up @@ -747,8 +740,7 @@ async def handle_stream(
# send a ResponseOutputItemDone for the assistant message
yield ResponseOutputItemDoneEvent(
item=assistant_msg,
output_index=state.reasoning_content_index_and_output
is not None, # fixed 0 -> 0 or 1
output_index=(1 if state.reasoning_content_index_and_output else 0),
type="response.output_item.done",
sequence_number=sequence_number.get_and_increment(),
)
Expand Down