diff --git a/internal/store/migrations/082-index-audit-attention.sql b/internal/store/migrations/082-index-audit-attention.sql
new file mode 100644
index 0000000..b614ced
--- /dev/null
+++ b/internal/store/migrations/082-index-audit-attention.sql
@@ -0,0 +1 @@
+CREATE INDEX events_attention ON events(task_id) WHERE kind IN ('inbox.created', 'task.ready', 'session.error', 'session.rate_limited');