kshitij 648b89911f fix: use output_text for assistant message content in Codex Responses API (#15690) ...

The Codex Responses API rejects input_text inside assistant messages —
only output_text and refusal are valid content types for assistant role.

_chat_content_to_responses_parts() previously hardcoded all text content
to input_text regardless of the message role. When an assistant message
had list-format content (multimodal or structured), this produced invalid
input_text parts that the API rejected with:

  Invalid value: 'input_text'. Supported values are: 'output_text' and 'refusal'.

Fix: add a role parameter to _chat_content_to_responses_parts() that
selects output_text for assistant messages and input_text for user
messages. Thread this through _chat_messages_to_responses_input() and
_preflight_codex_input_items().

Fixes #15687

2026-04-25 10:13:29 -07:00

38 KiB

Raw Blame History

View Raw