diff --git a/.planning/phases/12-orders-invoices-company-matching/12-04-SUMMARY.md b/.planning/phases/12-orders-invoices-company-matching/12-04-SUMMARY.md
index b29d290..b76f832 100644
--- a/.planning/phases/12-orders-invoices-company-matching/12-04-SUMMARY.md
+++ b/.planning/phases/12-orders-invoices-company-matching/12-04-SUMMARY.md
@@ -109,3 +109,10 @@ None - no external service configuration required. This plan only extends existi
 ---
 *Phase: 12-orders-invoices-company-matching*
 *Completed: 2026-07-11*
+
+## Self-Check: PASSED
+
+All created files found on disk (`lib/services/pax8-sync-service.test.ts`,
+`.planning/phases/12-orders-invoices-company-matching/12-04-SUMMARY.md`);
+all task commits (`a06c1d3`, `5f96060`, `59294ce`) verified present in
+`git log --oneline --all`.