Refactor

open-sse/translator/response/openai-responses.js

@@ -7,7 +7,7 @@ import { FORMATS } from "../formats.js";
 import { buildChunk } from "../concerns/chunk.js";
 import { buildUsage } from "../concerns/usage.js";
 import { fallbackToolCallId } from "../concerns/toolCall.js";
-import { reasoningDelta } from "../concerns/reasoning.js";
+import { reasoningDelta, extractReasoningText } from "../concerns/reasoning.js";
 import { ROLE, OPENAI_BLOCK, RESPONSES_ITEM, OPENAI_FINISH, MODEL_FALLBACK } from "../schema/index.js";
 
 /**
@@ -62,10 +62,11 @@ export function openaiToOpenAIResponsesResponse(chunk, state) {
     });
   }
 
-  // Handle reasoning_content
-  if (delta.reasoning_content) {
+  // Handle reasoning across vendor shapes (reasoning_content / reasoning / reasoning_details)
+  const reasoningText = extractReasoningText(delta);
+  if (reasoningText) {
     startReasoning(state, emit, idx);
-    emitReasoningDelta(state, emit, delta.reasoning_content);
+    emitReasoningDelta(state, emit, reasoningText);
   }
 
   // Handle text content

open-sse/translator/response/openai-to-claude.js

@@ -2,6 +2,7 @@ import { register } from "../index.js";
 import { FORMATS } from "../formats.js";
 import { ROLE, CLAUDE_BLOCK, MODEL_FALLBACK } from "../schema/index.js";
 import { fromOpenAIFinish } from "../concerns/finishReason.js";
+import { extractReasoningText } from "../concerns/reasoning.js";
 
 // Legacy "proxy_" prefix used by older request translators. Response strips it
 // defensively so tool names from such turns resolve back (e.g. proxy_Read → Read
@@ -134,8 +135,8 @@ export function openaiToClaudeResponse(chunk, state) {
     });
   }
 
-  // Handle reasoning_content (thinking) - GLM, DeepSeek, etc.
-  const reasoningContent = delta?.reasoning_content || delta?.reasoning;
+  // Handle reasoning (thinking) across vendor shapes - GLM/DeepSeek/Qwen/MiniMax/etc.
+  const reasoningContent = extractReasoningText(delta);
   if (reasoningContent) {
     stopTextBlock(state, results);