displayName
OpenAI Responses / response.output_item.added
messageType
StreamEvent
subtype
none
direction
core-to-user
terminal
false
errorCategory
none
payloadSchema
event
response.output_item.added
fields
- output_index
- item.type
- item.id
description
Streaming SSE event announcing a new output item (message, function_call,
or reasoning block) in the response. Codex CLI dispatches tool calls
when item.type=function_call.