chore(lllm-detector): Make fingerprint case insensitive (#103258)

roggenkemper · andrewshie-sentry · commit 2ef05631a478 · 2025-11-12T16:22:27.000-08:00
diff --git a/src/sentry/tasks/llm_issue_detection.py b/src/sentry/tasks/llm_issue_detection.py
@@ -82,8 +82,8 @@ def create_issue_occurrence_from_detection(
     occurrence_id = uuid4().hex
     detection_time = datetime.now(UTC)
     project = Project.objects.get_from_cache(id=project_id)
-
-    fingerprint = [f"llm-detected-{detected_issue.title}-{transaction_name}"]
+    title = detected_issue.title.lower().replace(" ", "-")
+    fingerprint = [f"llm-detected-{title}-{transaction_name}"]
 
     evidence_data = {
         "trace_id": trace.trace_id,
diff --git a/tests/sentry/tasks/test_llm_issue_detection.py b/tests/sentry/tasks/test_llm_issue_detection.py
@@ -83,7 +83,7 @@ def test_create_issue_occurrence_from_detection(self, mock_produce_occurrence):
         assert len(occurrence.fingerprint) == 1
         assert (
             occurrence.fingerprint[0]
-            == "llm-detected-Database Connection Pool Exhaustion-test_transaction"
+            == "llm-detected-database-connection-pool-exhaustion-test_transaction"
         )
 
         assert occurrence.evidence_data["trace_id"] == "abc123xyz"

Original file line number	Diff line number	Diff line change
`@@ -83,7 +83,7 @@ def test_create_issue_occurrence_from_detection(self, mock_produce_occurrence):`
`83`	`83`	`assert len(occurrence.fingerprint) == 1`
`84`	`84`	`assert (`
`85`	`85`	`occurrence.fingerprint[0]`
`86`		`- == "llm-detected-Database Connection Pool Exhaustion-test_transaction"`
	`86`	`+ == "llm-detected-database-connection-pool-exhaustion-test_transaction"`
`87`	`87`	`)`
`88`	`88`
`89`	`89`	`assert occurrence.evidence_data["trace_id"] == "abc123xyz"`