diff --git a/docs/research/2026-07-09-a7-townnet-ambient-verdict-lightcap-handoff.md b/docs/research/2026-07-09-a7-townnet-ambient-verdict-lightcap-handoff.md
index a9cd3751..626fb56c 100644
--- a/docs/research/2026-07-09-a7-townnet-ambient-verdict-lightcap-handoff.md
+++ b/docs/research/2026-07-09-a7-townnet-ambient-verdict-lightcap-handoff.md
@@ -1,5 +1,19 @@
 # A7 dungeon lighting — Town Network "too dark" ROOT-CAUSED to the light cap (ambient RULED OUT). Pickup handoff.
 
+> **Historical handoff — NOT the current repair contract (2026-09-05).**
+> The captured retail ambient0.2 conclusion remains valid. The proposed
+> player/portal-visible-cell pool below is wrong: `visible_cell_table` is a
+> resident registry, as CORRECTION #2 in the cited July6 pseudocode explains.
+> Nor does physical stationarity alone define the retail STATIC light flag.
+> Campaign OVERHAUL #478 has now reproduced darkness with only126 global
+> lights (below128): all11 drawn cell sets use eight dynamics and exclude
+> every static fixture. Do not repeat this document's flood-scoping or
+> overflow-only repair proposal. Current evidence:
+> [#478 consumed-light R2](2026-09-01-overhaul/478-479-graphical-observations.md),
+> named/paired proof in
+> [#478 diagnosis](2026-09-01-overhaul/478-480-readonly-diagnosis.md),
+> and register AP-16/AP-35/AP-85. The original report is retained below.
+
 **Date:** 2026-07-09
 **Status:** investigation COMPLETE (report-only). Fix NOT started — deferred to a new
 implementation session (this doc + the separate pickup prompt).