diff --git a/TODO.md b/TODO.md
index 21b7abd..0a050ee 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,6 +2,9 @@
 
 * aquatic_udp glommio
   * disable by default!
+  * consider adding ConnectedScrapeRequest::Scrape(PendingScrapeRequest)
+    containing TransactionId and BTreeMap<usize, InfoHash>, and same for
+    response
 
 * access lists:
   * use arc-swap Cache