Michael 2e6fff2212 fix: preserve reasoning_content in sanitized messages for Moonshot/Kimi (#3152) ...

Providers like Moonshot (Kimi K2.5/K2.6) require the reasoning_content
field to be present on assistant tool-call messages in multi-turn
conversations.  The sanitizer's allow-list was missing this field,
causing HTTP 400: 'thinking is enabled but reasoning_content is missing
in assistant tool call message at index N'.

Add reasoning_content to the allowed field set in
_sanitize_llm_messages and cover with regression tests.

Fixes #3118

Co-authored-by: michaelxer <michaelxer@users.noreply.github.com>
Co-authored-by: Alexandre Teixeira <111787685+alteixeira20@users.noreply.github.com>

2026-06-09 21:44:38 +01:00

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