diff --git a/packages/opencode/src/session/message-v2.ts b/packages/opencode/src/session/message-v2.ts
index ebe731abb..b35618c1e 100644
--- a/packages/opencode/src/session/message-v2.ts
+++ b/packages/opencode/src/session/message-v2.ts
@@ -638,8 +638,11 @@ export namespace MessageV2 {
                 state: "output-available",
                 toolCallId: part.callID,
                 input: part.state.input,
-                // TODO: prolly need something better here when dealing with synthetic user messages + attachments
-                output: part.state.time.compacted ? "[Old tool result content cleared]" : part.state.output,
+                output: part.state.attachments?.length
+                  ? "[Image content moved to user message]"
+                  : part.state.time.compacted
+                    ? "[Old tool result content cleared]"
+                    : part.state.output,
                 callProviderMetadata: part.metadata,
               })
             }