diff --git a/packages/cli-workflow/src/commands/serve/routes-thread.ts b/packages/cli-workflow/src/commands/serve/routes-thread.ts
index eb9c49c..a14c246 100644
--- a/packages/cli-workflow/src/commands/serve/routes-thread.ts
+++ b/packages/cli-workflow/src/commands/serve/routes-thread.ts
@@ -26,6 +26,9 @@ async function buildThreadDetailRecords(
   const records: unknown[] = [
     {
       type: "thread-start",
+      role: null,
+      content: `workflow: ${resolved.bundleHash ?? "unknown"}`,
+      timestamp: null,
       threadId: resolved.threadId,
       bundleHash: resolved.bundleHash,
       head: resolved.head,