diff --git a/src/util.ts b/src/util.ts
index 172c9959..1ccc0f44 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -1,4 +1,4 @@
-import type {KnownUrl} from './types.js';
+import type {KnownUrl, ModuleReplacement} from './types.js';
 
 export function resolveDocUrl(url?: KnownUrl): string | null {
   if (!url) return null;
@@ -15,3 +15,10 @@ export function resolveDocUrl(url?: KnownUrl): string | null {
       return null;
   }
 }
+
+export function getReplacementDescription(
+  replacement: ModuleReplacement
+): string | undefined {
+  if (!('description' in replacement)) return undefined;
+  return replacement.description;
+}