fix(codex): normalize cleared service tier in bindings

vincentkoc · vincentkoc · commit cd32d9ff91ca · 2026-06-21T21:43:41.000+08:00
diff --git a/extensions/codex/src/conversation-binding.ts b/extensions/codex/src/conversation-binding.ts
@@ -511,7 +511,7 @@ async function writeThreadBindingFromResponse(
       sandbox: resolved.execPolicy?.touched
         ? resolved.runtime.sandbox
         : (params.sandbox ?? resolved.runtime.sandbox),
-      serviceTier: params.serviceTier ?? resolved.runtime.serviceTier,
+      serviceTier: params.serviceTier ?? resolved.runtime.serviceTier ?? undefined,
       networkProxyProfileName: resolved.runtime.networkProxy?.profileName,
       networkProxyConfigFingerprint: resolved.runtime.networkProxy?.configFingerprint,
     },
@@ -689,7 +689,7 @@ async function runBoundTurn(params: {
           }),
           approvalPolicy: typeof approvalPolicy === "string" ? approvalPolicy : undefined,
           sandbox,
-          serviceTier,
+          serviceTier: serviceTier ?? undefined,
           networkProxyProfileName: modelScopedRuntime.networkProxy?.profileName,
           networkProxyConfigFingerprint: modelScopedRuntime.networkProxy?.configFingerprint,
         },
diff --git a/extensions/codex/src/conversation-control.ts b/extensions/codex/src/conversation-control.ts
@@ -192,7 +192,7 @@ export async function setCodexConversationModel(params: {
       modelProvider: response.modelProvider ?? modelSelection.modelProvider,
       approvalPolicy: binding.approvalPolicy,
       sandbox: binding.sandbox,
-      serviceTier: binding.serviceTier ?? runtime.serviceTier,
+      serviceTier: binding.serviceTier ?? runtime.serviceTier ?? undefined,
     },
     lookup,
   );
