diff --git a/docs/backlog/P3/B-0528-shadow-launchd-installer-unit-tests-2026-05-15.md b/docs/backlog/P3/B-0528-shadow-launchd-installer-unit-tests-2026-05-15.md
index 52537fabd..d73744b3e 100644
--- a/docs/backlog/P3/B-0528-shadow-launchd-installer-unit-tests-2026-05-15.md
+++ b/docs/backlog/P3/B-0528-shadow-launchd-installer-unit-tests-2026-05-15.md
@@ -1,12 +1,13 @@
 ---
 id: B-0528
 priority: P3
-status: open
+status: closed
 title: "Unit tests for tools/shadow/launchd/install-launchagent.ts"
 tier: factory-infrastructure
 effort: S
 created: 2026-05-15
-last_updated: 2026-05-15
+last_updated: 2026-05-16
+closed: 2026-05-16
 depends_on: []
 composes_with: [B-0402]
 tags: [test-coverage, shadow-observer, launchd, deferred-from-pr-3342]