diff --git a/docs/developer/ui-controls.md b/docs/developer/ui-controls.md
index 89643e53..ebe9c5e2 100644
--- a/docs/developer/ui-controls.md
+++ b/docs/developer/ui-controls.md
@@ -212,6 +212,12 @@ label: Scan Interval (seconds)
 where: Settings page → Scanning section
 does: Sets the seconds between automatic scans.
 
+label: Force Rescan All Libraries
+where: /admin dashboard → Quick Actions
+does: Force-rescans every library — re-reads each file, re-extracts metadata with original-scan semantics, and recomputes hash identifiers. Unlike the shallow per-library and per-folder scans, nothing unchanged is skipped; this is the admin's backfill tool.
+also: Scan All Libraries
+note: renamed 2026-11-02 — the old label under-promised a heavy operation
+
 label: Resume rewind
 where: audio player → player settings; profile settings
 does: Rewinds playback a configured few seconds when you resume.
diff --git a/templates/admin.templ b/templates/admin.templ
index 7e97bb90..cbde43f4 100644
--- a/templates/admin.templ
+++ b/templates/admin.templ
@@ -77,9 +77,9 @@ templ Admin(user User, stats AdminStats) {
 							<button @click="scanAllLibraries()" class="btn btn-primary py-4 flex-col items-start gap-1">
 								<span class="flex items-center gap-2 font-medium">
 									@Icon("refresh", "h-5 w-5")
-									Scan All Libraries
+									Force Rescan All Libraries
 								</span>
-								<span class="text-xs font-normal opacity-80">Re-scan existing files and detect new items</span>
+								<span class="text-xs font-normal opacity-80">Re-reads every file and re-extracts metadata and hashes — slow but thorough</span>
 							</button>
 							<a href="/admin/library" class="btn btn-secondary py-4 flex-col items-start gap-1">
 								<span class="flex items-center gap-2 font-medium">
diff --git a/templates/admin_templ.go b/templates/admin_templ.go
index 67fc596f..f7527480 100644
--- a/templates/admin_templ.go
+++ b/templates/admin_templ.go
@@ -167,7 +167,7 @@ func Admin(user User, stats AdminStats) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 15, "Scan All Libraries</span> <span class=\"text-xs font-normal opacity-80\">Re-scan existing files and detect new items</span></button> <a href=\"/admin/library\" class=\"btn btn-secondary py-4 flex-col items-start gap-1\"><span class=\"flex items-center gap-2 font-medium\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 15, "Force Rescan All Libraries</span> <span class=\"text-xs font-normal opacity-80\">Re-reads every file and re-extracts metadata and hashes — slow but thorough</span></button> <a href=\"/admin/library\" class=\"btn btn-secondary py-4 flex-col items-start gap-1\"><span class=\"flex items-center gap-2 font-medium\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}