diff --git a/docs/pr-discussions/PR-4449-feat-bg-notifier-b-0501-slice-5a-assignment-history-cooldown.md b/docs/pr-discussions/PR-4449-feat-bg-notifier-b-0501-slice-5a-assignment-history-cooldown.md
index 3b79be16e..7bf698cdc 100644
--- a/docs/pr-discussions/PR-4449-feat-bg-notifier-b-0501-slice-5a-assignment-history-cooldown.md
+++ b/docs/pr-discussions/PR-4449-feat-bg-notifier-b-0501-slice-5a-assignment-history-cooldown.md
@@ -8,7 +8,7 @@ merged_at: "2026-05-20T20:11:43Z"
 closed_at: "2026-05-20T20:11:43Z"
 head_ref: "otto/b0501-assignment-history-cooldown-2026-05-20"
 base_ref: "main"
-archived_at: "2026-05-20T23:01:35Z"
+archived_at: "2026-05-21T01:14:20Z"
 archive_tool: "tools/pr-preservation/archive-pr.ts"
 ---
 
@@ -93,12 +93,12 @@ Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 c
 <details>
 <summary>Show a summary per file</summary>
 
-| File | Description |
-| ---- | ----------- |
-| tools/bg/backlog-ready-notifier.ts | Implements cooldown gate + history persistence hooks and CLI flags. |
-| tools/bg/backlog-ready-notifier.test.ts | Adds 8 tests covering cooldown behavior, pruning, and arg parsing. |
-| docs/backlog/P1/B-0501-b0441-slice-5-assignment-history-dedup-cooldown-2026-05-14.md | Marks B-0501 closed and documents the shipped resolution. |
-| docs/backlog/P1/B-0441-backlog-row-ready-to-grind-notifier-background-service-2026-05-13.md | Checks off the slice-5a acceptance bullet as shipped. |
+| File | Description |
+| ---- | ----------- |
+| tools/bg/backlog-ready-notifier.ts | Implements cooldown gate + history persistence hooks and CLI flags. |
+| tools/bg/backlog-ready-notifier.test.ts | Adds 8 tests covering cooldown behavior, pruning, and arg parsing. |
+| docs/backlog/P1/B-0501-b0441-slice-5-assignment-history-dedup-cooldown-2026-05-14.md | Marks B-0501 closed and documents the shipped resolution. |
+| docs/backlog/P1/B-0441-backlog-row-ready-to-grind-notifier-background-service-2026-05-13.md | Checks off the slice-5a acceptance bullet as shipped. |
 | docs/BACKLOG.md | Regenerates index entry to reflect B-0501 as closed. |
 </details>
 
diff --git a/docs/pr-discussions/PR-4450-fix-bg-notifier-test-platform-independent-path-assertions.md b/docs/pr-discussions/PR-4450-fix-bg-notifier-test-platform-independent-path-assertions.md
index c55c5aaaf..faa17fc84 100644
--- a/docs/pr-discussions/PR-4450-fix-bg-notifier-test-platform-independent-path-assertions.md
+++ b/docs/pr-discussions/PR-4450-fix-bg-notifier-test-platform-independent-path-assertions.md
@@ -8,7 +8,7 @@ merged_at: "2026-05-20T20:17:43Z"
 closed_at: "2026-05-20T20:17:43Z"
 head_ref: "fix/b0501-test-windows-path-portability-2026-05-20"
 base_ref: "main"
-archived_at: "2026-05-20T23:01:34Z"
+archived_at: "2026-05-21T01:14:12Z"
 archive_tool: "tools/pr-preservation/archive-pr.ts"
 ---