diff --git a/apps/builder/app/routes/rest.resources-loader.ts b/apps/builder/app/routes/rest.resources-loader.ts
index 0954d19295ac..94c239a89b31 100644
--- a/apps/builder/app/routes/rest.resources-loader.ts
+++ b/apps/builder/app/routes/rest.resources-loader.ts
@@ -25,32 +25,35 @@ export const action = async ({ request }: ActionFunctionArgs) => {
   };
 
   const requestJson = await request.json();
+  const requestList = z.array(z.unknown()).safeParse(requestJson);
 
-  const computedResourcesParsed = z
-    .array(ResourceRequest)
-    .safeParse(requestJson);
-
-  if (computedResourcesParsed.success === false) {
-    console.error(
-      "computedResources.parse",
-      computedResourcesParsed.error.toString()
-    );
+  if (requestList.success === false) {
     console.error("data:", requestJson);
-
-    throw data(computedResourcesParsed.error, {
+    throw data(requestList.error, {
       status: 400,
     });
   }
 
-  const computedResources = computedResourcesParsed.data;
-
-  const responses = await Promise.all(
-    computedResources.map((resource) => loadResource(customFetch, resource))
+  const output = await Promise.all(
+    requestList.data.map(async (item) => {
+      const resource = ResourceRequest.safeParse(item);
+      if (resource.success === false) {
+        return [
+          getResourceKey(item as ResourceRequest),
+          {
+            ok: false,
+            data: resource.error.format(),
+            status: 403,
+            statusText: "Resource validation error",
+          },
+        ];
+      }
+      return [
+        getResourceKey(resource.data),
+        await loadResource(customFetch, resource.data),
+      ];
+    })
   );
-  const output: [string, unknown][] = [];
-  responses.forEach((response, index) => {
-    const request = computedResources[index];
-    output.push([getResourceKey(request), response]);
-  });
+
   return output;
 };
diff --git a/apps/builder/app/shared/resources.ts b/apps/builder/app/shared/resources.ts
index 815368b595b0..3f4078eb6fc6 100644
--- a/apps/builder/app/shared/resources.ts
+++ b/apps/builder/app/shared/resources.ts
@@ -7,18 +7,24 @@ import { fetch } from "./fetch.client";
 
 const MAX_PENDING_RESOURCES = 5;
 
-export const getResourceKey = (resource: ResourceRequest) =>
-  hash(
-    JSON.stringify([
-      // explicitly list all fields to keep hash stable
-      resource.name,
-      resource.method,
-      resource.url,
-      resource.searchParams,
-      resource.headers,
-      resource.body,
-    ])
-  );
+export const getResourceKey = (resource: ResourceRequest) => {
+  try {
+    return hash(
+      JSON.stringify([
+        // explicitly list all fields to keep hash stable
+        resource.name,
+        resource.method,
+        resource.url,
+        resource.searchParams,
+        resource.headers,
+        resource.body,
+      ])
+    );
+  } catch {
+    // guard from invalid resources
+    return "";
+  }
+};
 
 const queue = new Map<string, ResourceRequest>();
 const pending = new Map<string, ResourceRequest>();