diff --git a/src/backend/codex-stdio.ts b/src/backend/codex-stdio.ts
index 11e2a21..8f4eca0 100644
--- a/src/backend/codex-stdio.ts
+++ b/src/backend/codex-stdio.ts
@@ -1120,7 +1120,10 @@ function toolCallPayload(method: string, item: JsonRecord): JsonRecord {
 }
 
 function toolCallStatus(method: string, item: JsonRecord): string | null {
-  if (typeof item.status === "string" && item.status.trim().length > 0) return item.status;
+  const status = typeof item.status === "string" ? item.status.trim().toLowerCase() : "";
+  if (status === "inprogress" || status === "in_progress" || status === "running" || status === "pending") return "started";
+  if (status === "completed" || status === "succeeded" || status === "success") return "completed";
+  if (status === "failed" || status === "error" || status === "cancelled" || status === "canceled") return "failed";
   if (method === "item/started") return "started";
   if (method === "item/completed") return "completed";
   return null;