diff --git a/apps/internal-tool/src/lib/env.ts b/apps/internal-tool/src/lib/env.ts
index ff3aafc4b..616115e04 100644
--- a/apps/internal-tool/src/lib/env.ts
+++ b/apps/internal-tool/src/lib/env.ts
@@ -1,4 +1,4 @@
-import { StackAssertionError } from "@stackframe/stack-shared/dist/utils/errors";
+import { HexclaveAssertionError } from "@stackframe/stack-shared/dist/utils/errors";
 
 const IS_DEV = process.env.NODE_ENV === "development";
 const PLACEHOLDER = "REPLACE_ME";
@@ -12,7 +12,7 @@ const PLACEHOLDER = "REPLACE_ME";
 export function envOrDevDefault(value: string | undefined, devDefault: string, name: string): string {
   if (!value || value === PLACEHOLDER) {
     if (IS_DEV) return devDefault;
-    throw new StackAssertionError(`${name} is not configured. Set the NEXT_PUBLIC_STACK_* vars in .env.local or the hosting platform env.`);
+    throw new HexclaveAssertionError(`${name} is not configured. Set the NEXT_PUBLIC_STACK_* vars in .env.local or the hosting platform env.`);
   }
   return value;
 }
diff --git a/apps/internal-tool/src/lib/mcp-review-api.ts b/apps/internal-tool/src/lib/mcp-review-api.ts
index 582c806cc..bcbb6a9f5 100644
--- a/apps/internal-tool/src/lib/mcp-review-api.ts
+++ b/apps/internal-tool/src/lib/mcp-review-api.ts
@@ -1,8 +1,8 @@
 import { envOrDevDefault } from "./env";
 
 const PORT_PREFIX = process.env.NEXT_PUBLIC_HEXCLAVE_PORT_PREFIX ?? "81";
-const API_URL = envOrDevDefault(process.env.NEXT_PUBLIC_STACK_API_URL, `http://localhost:${PORT_PREFIX}02`);
-const PROJECT_ID = envOrDevDefault(process.env.NEXT_PUBLIC_STACK_PROJECT_ID, "internal");
+const API_URL = envOrDevDefault(process.env.NEXT_PUBLIC_STACK_API_URL, `http://localhost:${PORT_PREFIX}02`, "NEXT_PUBLIC_STACK_API_URL");
+const PROJECT_ID = envOrDevDefault(process.env.NEXT_PUBLIC_STACK_PROJECT_ID, "internal", "NEXT_PUBLIC_STACK_PROJECT_ID");
 const PUBLISHABLE_CLIENT_KEY = envOrDevDefault(
   process.env.NEXT_PUBLIC_STACK_PUBLISHABLE_CLIENT_KEY,
   "this-publishable-client-key-is-for-local-development-only",