diff --git a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
index 69eea799..a496f27f 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
@@ -59,3 +59,6 @@ the principle that settles it, cited as "design 47 G A-n".
   called once per candidate revision at the catalog follower's one subscription, whatever branches are followed, so
   a runner following none still hears it. As §373 says, a run builds each member and its dependents: the dependents'
   pipelines come from the candidate's entries whose fingerprints the members change.
+- **A-194** (principle 4; §64) The indexer's state `runs` and its run candidates get tools as every kept thing does:
+  `indexer_runs` reads them and `indexer_run_drop` drops one by hand (its hand act written first); a run id is
+  `run-` and the runner's random 12-hex id, which the indexer's wider pattern accepts.