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fix(agent): add Xiaomi MiMo to reasoning_content echo-back providers

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Xiaomi MiMo emits reasoning via OpenAI's reasoning_content field and
requires reasoning_content on every assistant tool-call message when
replaying history. Without echo-back, subsequent API calls fail with
HTTP 400 — same shape as DeepSeek and Kimi/Moonshot thinking modes.

Adds _needs_mimo_tool_reasoning() detection (provider == 'xiaomi',
'mimo' in model, or xiaomimimo.com base url) and wires it into the
_needs_thinking_reasoning_pad() check.

Salvage of #25358 by @ephron-ren (manually re-applied — original branch
was severely stale against current main).
This commit is contained in:
ephron-ren 2026-05-13 23:07:03 -07:00 • committed by Teknium
parent 8de26e280e
commit efa97af7e2
1 changed files with 18 additions and 1 deletions
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19
run_agent.py
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@ -10049,11 +10049,12 @@ class AIAgent:
DeepSeek v4 thinking and Kimi / Moonshot thinking both reject replays
of assistant tool-call messages that omit ``reasoning_content`` (refs
#15250, #17400).
#15250, #17400). Xiaomi MiMo thinking mode has the same requirement.
"""
return (
self._needs_deepseek_tool_reasoning()
or self._needs_kimi_tool_reasoning()
or self._needs_mimo_tool_reasoning()
)
def _needs_kimi_tool_reasoning(self) -> bool:
@ -10085,6 +10086,22 @@ class AIAgent:
or base_url_host_matches(self.base_url, "api.deepseek.com")
)
def _needs_mimo_tool_reasoning(self) -> bool:
"""Return True when the current provider is Xiaomi MiMo thinking mode.
MiMo thinking mode requires ``reasoning_content`` on every assistant
tool-call message when replaying history; omitting it causes HTTP 400.
Refs: https://platform.xiaomimimo.com/docs/zh-CN/usage-guide/passing-back-reasoning_content
"""
provider = (self.provider or "").lower()
model = (self.model or "").lower()
return (
provider == "xiaomi"
or "mimo" in model
or base_url_host_matches(self.base_url, "api.xiaomimimo.com")
or base_url_host_matches(self.base_url, "xiaomimimo.com")
)
def _copy_reasoning_content_for_api(self, source_msg: dict, api_msg: dict) -> None:
"""Copy provider-facing reasoning fields onto an API replay message."""
if source_msg.get("role") != "assistant":