diff --git a/src/memory-host-sdk/host/embedding-inputs.ts b/src/memory-host-sdk/host/embedding-inputs.ts
index 767a463f740..f65a5d28f6a 100644
--- a/src/memory-host-sdk/host/embedding-inputs.ts
+++ b/src/memory-host-sdk/host/embedding-inputs.ts
@@ -20,7 +20,7 @@ export function buildTextEmbeddingInput(text: string): EmbeddingInput {
   return { text };
 }
 
-export function isInlineDataEmbeddingInputPart(
+function isInlineDataEmbeddingInputPart(
   part: EmbeddingInputPart,
 ): part is EmbeddingInputInlineDataPart {
   return part.type === "inline-data";