Update openenv.yaml

openenv.yaml

@@ -1,6 +1,6 @@
 name: code_review_env
 version: 1.0.0
-description: Code review environment with three tasks
+description: Code review environment with 5 tasks and semantic grader
 author: yuvraj gupta
 license: MIT
 tasks:
@@ -10,10 +10,18 @@ tasks:
     description: Suggest using enumerate for efficiency
   - id: hard
     description: Point out division by zero risk with empty list
+  - id: harder
+    description: Identify race condition in multithreaded counter
+  - id: hardest
+    description: Detect potential deadlock in lock ordering
 observation_space:
   type: object
   properties:
-    pr_code:
+    pr_title:
+      type: string
+    pr_description:
+      type: string
+    code_snippet:
       type: string
     comments:
       type: array