diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 25177014..81b82d6b 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -7,3 +7,6 @@
 
 # ruff format one-time backend + scripts pass (line-length 100, 2026-08-23)
 b1832afd180866b922521148603db447020c57a4
+
+# Plan-code purge from comments, one-time (2026-10-04)
+4aaaaa786017278460e0b4f94cc0d3374e0e37e2