Stage 2 summary at 50 accepted trajectories

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1122/mutation.json

@@ -0,0 +1,39 @@
+{
+ "task": "T15",
+ "mutants": [
+  {
+   "object": "{{P}}EXT_CHECK_OLD",
+   "mutant": "weight threshold: < 4000 -> <= 4000 (rel)",
+   "status": "killed",
+   "hidden": "8/9",
+   "failed_tests": [
+    "refill_boundary"
+   ]
+  },
+  {
+   "object": "{{P}}EXT_CHECK_OLD",
+   "mutant": "sort: urgency ASCENDING -> DESCENDING (sort)",
+   "status": "killed",
+   "hidden": "5/9",
+   "failed_tests": [
+    "sorted_by_urgency",
+    "site_filter",
+    "defect_only",
+    "date_filter"
+   ]
+  },
+  {
+   "object": "{{P}}EXT_CHECK_OLD",
+   "mutant": "defect filter: urgency = 4 -> urgency <> 4 (logic)",
+   "status": "killed",
+   "hidden": "8/9",
+   "failed_tests": [
+    "defect_only"
+   ]
+  }
+ ],
+ "valid": 3,
+ "killed": 3,
+ "kill_rate": 1.0,
+ "ok": true
+}