revert

apps/sim/executor/handlers/agent/agent-handler.ts

@@ -737,14 +737,13 @@ export class AgentBlockHandler implements BlockHandler {
 
   private formatToolCall(tc: any) {
     return {
+      ...tc,
       name: this.stripCustomToolPrefix(tc.name),
       startTime: tc.startTime,
       endTime: tc.endTime,
       duration: tc.duration,
-      arguments: tc.arguments || tc.input,
-      result: tc.result || tc.output,
-      // Don't spread the original object to avoid duplication
-      // Only include the fields we actually need
+      input: tc.arguments || tc.input,
+      output: tc.result || tc.output,
     }
   }
 

apps/sim/lib/logs/trace-spans.ts

@@ -175,8 +175,8 @@ export function buildTraceSpans(result: ExecutionResult): {
                 startTime: tc.startTime || log.startedAt,
                 endTime: tc.endTime || log.endedAt,
                 status: tc.error ? 'error' : 'success',
-                input: tc.arguments,
-                output: tc.result,
+                input: tc.arguments || tc.input,
+                output: tc.result || tc.output,
                 error: tc.error,
               }
             } catch (tcError) {