diff --git a/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx b/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
index bf3c361a2..487add84d 100644
--- a/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
+++ b/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
@@ -570,6 +570,9 @@ function UserMessage(props: {
             </For>
           </box>
         </Show>
+        <Show when={props.message.summary}>
+          <text>EXPERIMENTAL: {props.message.summary!.text}</text>
+        </Show>
         <text>
           {sync.data.config.username ?? "You"}{" "}
           <Show
diff --git a/packages/sdk/js/src/gen/types.gen.ts b/packages/sdk/js/src/gen/types.gen.ts
index cfa436d2a..6d1de1623 100644
--- a/packages/sdk/js/src/gen/types.gen.ts
+++ b/packages/sdk/js/src/gen/types.gen.ts
@@ -610,6 +610,10 @@ export type UserMessage = {
   time: {
     created: number
   }
+  summary?: {
+    diffs: Array<FileDiff>
+    text: string
+  }
 }
 
 export type ProviderAuthError = {
@@ -652,6 +656,7 @@ export type AssistantMessage = {
   error?: ProviderAuthError | UnknownError | MessageOutputLengthError | MessageAbortedError
   system: Array<string>
   finish?: string
+  parentID: string
   modelID: string
   providerID: string
   mode: string