diff --git a/packages/metadata-protocol/src/protocol-sealed-overlay-report.ts b/packages/metadata-protocol/src/protocol-sealed-overlay-report.ts
new file mode 100644
index 00000000000..702ea4b69aa
--- /dev/null
+++ b/packages/metadata-protocol/src/protocol-sealed-overlay-report.ts
@@ -0,0 +1,56 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * [#25467 cut 21] The boot report of `ObjectStackProtocolImplementation`
+ * that says out loud which stored ENVIRONMENT `sys_metadata` rows no read
+ * serves because they overlay sealed managed content
+ * (`reportSealedOverlayRows`, ADR-0131 D6): per type, a capped sample of
+ * names and the two remedies. Moved out of `protocol.ts` whole.
+ *
+ * A MOVE, not a redesign. The function below is the body of the
+ * `ObjectStackProtocolImplementation` method of the same name as it stood,
+ * re-indented one level and otherwise unedited: the same grouping by type,
+ * the same sample cap, and the same warning text.
+ *
+ * ## How the moved body reaches the class
+ *
+ * The shape #23050 set for `rest-server.ts` (its `data-action-routes.ts`
+ * header carries the full reasoning). The class keeps the method — the
+ * published `dist/*.d.ts` lists its name, docblock and declared signature.
+ * The body reads no member of the class, so there is no host: the method's
+ * stub calls the plain function directly, as `namesWithOwnStoredRow`'s does
+ * in `protocol-stored-overlay-reads.ts`. Its one caller keeps calling the
+ * class method.
+ *
+ * The body reads none of `protocol.ts`'s module-level declarations and
+ * imports nothing. Nothing re-exports this module, so the published surface
+ * does not move.
+ */
+
+/** The body of `ObjectStackProtocolImplementation#reportSealedOverlayRows`; the method's docblock there is its contract. */
+export function reportSealedOverlayRows(rows: ReadonlyArray<{ type: string; name: string }>): void {
+    if (rows.length === 0) return;
+    const SAMPLE_PER_TYPE = 5;
+    const byType = new Map<string, string[]>();
+    for (const { type, name } of rows) {
+        const names = byType.get(type) ?? [];
+        names.push(name);
+        byType.set(type, names);
+    }
+    const detail = Array.from(byType.entries())
+        .map(([type, names]) => {
+            const shown = names.slice(0, SAMPLE_PER_TYPE);
+            const more = names.length > shown.length ? `, +${names.length - shown.length} more` : '';
+            return `${type}×${names.length} (${shown.join(', ')}${more})`;
+        })
+        .join('; ');
+    console.warn(
+        `[Protocol] [metadata_sealed_overlay_unserved] ${rows.length} active environment sys_metadata row(s) ` +
+        `overlay an item a managed package ships, on a type that is sealed against overlays (ADR-0131 D6): ` +
+        `${detail}. No read serves them — the package's own definition is served. ` +
+        `Each row is kept at rest, untouched (an object's table and its columns stay as they are). To keep ` +
+        `the change, re-express it as a new item under a new ` +
+        `name (a linkage-free clone of the managed item), then delete the stored row; otherwise delete the ` +
+        `stored row.`,
+    );
+}
diff --git a/packages/metadata-protocol/src/protocol.ts b/packages/metadata-protocol/src/protocol.ts
index 1cd288f54b2..f87c06f30e4 100644
--- a/packages/metadata-protocol/src/protocol.ts
+++ b/packages/metadata-protocol/src/protocol.ts
@@ -406,6 +406,8 @@ import { flowSaveReplaysRetired } from './protocol-flow-save-replay.js';
 import { resolveWritePackageScope } from './protocol-write-package-scope.js';
 // [#25467 cut 20] The code-layer read through the `metadata` service: package-scoped, singular/plural fallback, a stored object row's copy not counted as code.
 import { readItemFromMetadataService } from './protocol-metadata-service-read.js';
+// [#25467 cut 21] The boot report of the stored overlay rows no read serves because they overlay sealed managed content.
+import { reportSealedOverlayRows } from './protocol-sealed-overlay-report.js';
 
 /**
  * Canonical Zod schema per metadata type lives in
@@ -28658,30 +28660,8 @@ export class ObjectStackProtocolImplementation implements
      * sealed overlays are still not served.
      */
     private reportSealedOverlayRows(rows: ReadonlyArray<{ type: string; name: string }>): void {
-        if (rows.length === 0) return;
-        const SAMPLE_PER_TYPE = 5;
-        const byType = new Map<string, string[]>();
-        for (const { type, name } of rows) {
-            const names = byType.get(type) ?? [];
-            names.push(name);
-            byType.set(type, names);
-        }
-        const detail = Array.from(byType.entries())
-            .map(([type, names]) => {
-                const shown = names.slice(0, SAMPLE_PER_TYPE);
-                const more = names.length > shown.length ? `, +${names.length - shown.length} more` : '';
-                return `${type}×${names.length} (${shown.join(', ')}${more})`;
-            })
-            .join('; ');
-        console.warn(
-            `[Protocol] [metadata_sealed_overlay_unserved] ${rows.length} active environment sys_metadata row(s) ` +
-            `overlay an item a managed package ships, on a type that is sealed against overlays (ADR-0131 D6): ` +
-            `${detail}. No read serves them — the package's own definition is served. ` +
-            `Each row is kept at rest, untouched (an object's table and its columns stay as they are). To keep ` +
-            `the change, re-express it as a new item under a new ` +
-            `name (a linkage-free clone of the managed item), then delete the stored row; otherwise delete the ` +
-            `stored row.`,
-        );
+        // [#25467 cut 21] The body moved to `protocol-sealed-overlay-report.ts`.
+        return reportSealedOverlayRows(rows);
     }
 
     // ==========================================