diff --git a/studio/frontend/src/features/chat/chat-settings-sheet.tsx b/studio/frontend/src/features/chat/chat-settings-sheet.tsx
index dc57de469f..f954670c42 100644
--- a/studio/frontend/src/features/chat/chat-settings-sheet.tsx
+++ b/studio/frontend/src/features/chat/chat-settings-sheet.tsx
@@ -633,7 +633,8 @@ export function ChatSettingsPanel({
       activeExternalProvider.baseUrl,
     ) &&
     activeExternalProvider.providerType === "openai";
-  const activeThreadId = useChatRuntimeStore((s) => s.activeThreadId);
+  // (activeThreadId is declared earlier in this component — see the
+  // RAG retrieval-section block above.)
   const openAiApiKeyForSection = activeExternalProvider
     ? getExternalProviderApiKey(activeExternalProvider.id) || null
     : null;
diff --git a/studio/frontend/src/features/rag/stores/rag-store.ts b/studio/frontend/src/features/rag/stores/rag-store.ts
index 02d6422748..a0434c448f 100644
--- a/studio/frontend/src/features/rag/stores/rag-store.ts
+++ b/studio/frontend/src/features/rag/stores/rag-store.ts
@@ -322,8 +322,10 @@ export const useRagStore = create<RagStoreState>((set, get) => ({
   },
 
   subscribeJob(jobId, onComplete) {
-    const existing = get().jobUnsubscribers[jobId];
-    if (existing) return;
+    // Object indexing in TS returns V (not V|undefined) without
+    // noUncheckedIndexedAccess, so we test membership explicitly to
+    // avoid the "always-truthy function reference" lint.
+    if (jobId in get().jobUnsubscribers) return;
     const unsubscribe = subscribeToJobEvents(jobId, {
       onEvent: (event) => {
         set((state) => ({ jobs: { ...state.jobs, [jobId]: event } }));