diff --git a/generate.py b/action.py
similarity index 70%
rename from generate.py
rename to action.py
index 1fe9474..ecff4ca 100644
--- a/generate.py
+++ b/action.py
@@ -1,15 +1,14 @@
 # /// script
-# requires-python = ">=3.12"
+# requires-python = ">=3.14"
 # dependencies = ["requests<3"]
 # ///
 
 import json
 import os
+import sys
 
 import requests
 
-API_ENDPOINT_URL = os.getenv("CONTEST_HOST") + os.getenv("CONTEST_ENDPOINT")
-
 
 def download_image(url, payload, filepath):
     try:
@@ -36,18 +35,27 @@ def download_image(url, payload, filepath):
 
 
 def main():
+    host = os.getenv("CONTEST_HOST")
+    endpoint = os.getenv("CONTEST_API")
+
+    if host is None or endpoint is None:
+        print("env variable is not set")
+        return -1
+
+    API_ENDPOINT_URL = host + endpoint
+
     with open("answer.json", "r") as file:
-        manifest_data = json.load(file)
+        answers = json.load(file)
 
-    if not manifest_data:
-        return
+    if not answers:
+        return -1
 
-    for test_case in manifest_data.get("tests", []):
-        filename = test_case.get("name")
-        request_payload = test_case.get("request")
+    for test in answers.get("tests", []):
+        filename = test.get("name")
+        request_payload = test.get("request")
 
         if not filename or not request_payload:
-            print(f"Skipping invalid test case: {test_case}")
+            print(f"Skipping invalid test case: {test}")
             continue
 
         print(f"Requesting '{filename}'...")
@@ -55,4 +63,4 @@ def main():
 
 
 if __name__ == "__main__":
-    main()
+    sys.exit(main())