From 923af96d26bd7777ae335ddade89854ac5fc8841 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=BB=91=E5=A2=A8=E6=B0=B4=E9=B1=BC?= Date: Fri, 24 Apr 2026 20:42:57 +0800 Subject: [PATCH] fix: preserve empty reasoning_content for DeepSeek V4 thinking mode (#24146) Co-authored-by: Simon Klee --- packages/opencode/src/provider/transform.ts | 25 +++++++++------------ 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts index 6f24370ab0..0a2fc7fc26 100644 --- a/packages/opencode/src/provider/transform.ts +++ b/packages/opencode/src/provider/transform.ts @@ -185,24 +185,19 @@ function normalizeMessages( // Filter out reasoning parts from content const filteredContent = msg.content.filter((part: any) => part.type !== "reasoning") - // Include reasoning_content | reasoning_details directly on the message for all assistant messages - if (reasoningText) { - return { - ...msg, - content: filteredContent, - providerOptions: { - ...msg.providerOptions, - openaiCompatible: { - ...msg.providerOptions?.openaiCompatible, - [field]: reasoningText, - }, - }, - } - } - + // Include reasoning_content | reasoning_details directly on the message for all assistant messages. + // Always set the field even when empty — some providers (e.g. DeepSeek) may return empty + // reasoning_content which still needs to be sent back in subsequent requests. return { ...msg, content: filteredContent, + providerOptions: { + ...msg.providerOptions, + openaiCompatible: { + ...msg.providerOptions?.openaiCompatible, + [field]: reasoningText, + }, + }, } }