diff --git a/packages/cli-workflow/src/commands/step.ts b/packages/cli-workflow/src/commands/step.ts
index 03ee05b..45ee014 100644
--- a/packages/cli-workflow/src/commands/step.ts
+++ b/packages/cli-workflow/src/commands/step.ts
@@ -250,7 +250,7 @@ export async function cmdStepList(
       hash: item.hash,
       role: item.payload.role,
       output: expandOutput(uwf, item.payload.output),
-      detail: item.payload.detail,
+      detail: item.payload.detail ? expandDeep(uwf.store, item.payload.detail) : null,
       agent: item.payload.agent,
       timestamp: item.timestamp,
     });
diff --git a/packages/workflow-protocol/src/types.ts b/packages/workflow-protocol/src/types.ts
index ddd7f32..38a03d7 100644
--- a/packages/workflow-protocol/src/types.ts
+++ b/packages/workflow-protocol/src/types.ts
@@ -92,7 +92,7 @@ export type StepEntry = {
   hash: CasRef;
   role: string;
   output: unknown;
-  detail: CasRef;
+  detail: unknown;
   agent: string;
   timestamp: number;
 };