Update openenv.yaml

openenv.yaml

@@ -15,11 +15,25 @@ tasks:
     difficulty: "easy"
     path: "inference.py"
     target_score: 0.8
+    grader:
+      type: "threshold"
+      metric: "avg_reward"
+      threshold: 0.8
+
   - id: "weekly_budget"
     difficulty: "medium"
     path: "inference.py"
     target_score: 0.75
+    grader:
+      type: "threshold"
+      metric: "avg_reward"
+      threshold: 0.75
+
   - id: "chaos_mode"
     difficulty: "hard"
     path: "inference.py"
-    target_score: 0.7
+    target_score: 0.7
+    grader:
+      type: "threshold"
+      metric: "avg_reward"
+      threshold: 0.7