diff --git a/TODO b/TODO
index 80e6f1f6a7..99e8f1c723 100644
--- a/TODO
+++ b/TODO
@@ -129,6 +129,9 @@ Deprecations and removals:
 
 Features:
 
+* our logging tools should look for $DEBUG_INVOCATION and consider equivalent
+  to $SYSTEMD_LOG_LEVEL=debug
+
 * Teach systemd-ssh-generator to generated an /run/issue.d/ drop-in telling
   users how to connect to the system via the AF_VSOCK, as per:
   https://github.com/systemd/systemd/issues/35071#issuecomment-2462803142