Add per-model thinking toggles

api/model_router.py

@@ -17,6 +17,7 @@ class ResolvedModel:
     provider_id: str
     provider_model: str
     provider_model_ref: str
+    thinking_enabled: bool
 
 
 @dataclass(frozen=True, slots=True)
@@ -39,6 +40,7 @@ class ModelRouter:
 
     def resolve(self, claude_model_name: str) -> ResolvedModel:
         provider_model_ref = self._settings.resolve_model(claude_model_name)
+        thinking_enabled = self._settings.resolve_thinking(claude_model_name)
         provider_id = Settings.parse_provider_type(provider_model_ref)
         provider_model = Settings.parse_model_name(provider_model_ref)
         if provider_model != claude_model_name:
@@ -50,6 +52,7 @@ class ModelRouter:
             provider_id=provider_id,
             provider_model=provider_model,
             provider_model_ref=provider_model_ref,
+            thinking_enabled=thinking_enabled,
         )
 
     def resolve_messages_request(

api/services.py

@@ -95,6 +95,7 @@ class ClaudeProxyService:
                     routed.request,
                     input_tokens=input_tokens,
                     request_id=request_id,
+                    thinking_enabled=routed.resolved.thinking_enabled,
                 ),
                 media_type="text/event-stream",
                 headers={