diff --git a/docs/plans/2026-09-26_lead-decisions.md b/docs/plans/2026-09-26_lead-decisions.md
index c351cdb19..3c5d46d7d 100644
--- a/docs/plans/2026-09-26_lead-decisions.md
+++ b/docs/plans/2026-09-26_lead-decisions.md
@@ -2936,3 +2936,16 @@ which stay with him. Each item names who decided it and what happened.
     - Row 93 is owned by Filbert as builder, which the ruling didn't
       cover. It stays parked behind row 91, and Sage asks Mos who builds
       it.
+
+131. **Darkwing builds row 93; Dewey and Sage review it (2026-10-13, Mos
+    approved Sage's proposal).** Row 93 is sandbox and escape scope, so
+    under decision 130 no Codex seat touches it, and Filbert leaves the
+    row as builder too.
+    - Darkwing builds row 93 after row 91 round 3 closes.
+    - Dewey is the Claude reviewer. Sage is the second reviewer. Sage was
+      the only Claude seat left: Darkwing builds it, and Researcher
+      (Sonnet) holds rows 97 and 98. Sage's gate rerun stays separate
+      from the review.
+    - Sage makes the queue change (owner, reviewers, gate) when row 91
+      closes, not before, so row 93 stays parked behind 91 as decision
+      118 already has it.