diff --git a/packages/opencode/src/server/server.ts b/packages/opencode/src/server/server.ts
index bb9f065e..c7265006 100644
--- a/packages/opencode/src/server/server.ts
+++ b/packages/opencode/src/server/server.ts
@@ -756,7 +756,7 @@ export namespace Server {
         validator(
           "query",
           z.object({
-            limit: z.coerce.number(),
+            limit: z.coerce.number().optional(),
           }),
         ),
         async (c) => {
diff --git a/packages/sdk/js/src/gen/types.gen.ts b/packages/sdk/js/src/gen/types.gen.ts
index 93958959..5f565df5 100644
--- a/packages/sdk/js/src/gen/types.gen.ts
+++ b/packages/sdk/js/src/gen/types.gen.ts
@@ -1979,9 +1979,9 @@ export type SessionMessagesData = {
      */
     id: string
   }
-  query: {
+  query?: {
     directory?: string
-    limit: number
+    limit?: number
   }
   url: "/session/{id}/message"
 }