@@ -548,6 +548,7 @@ message TrajectoryStateUpdate {
   int32 depth = 7;
   .antigravity.localharness.TrajectoryStateUpdate.State state = 3;
   string error = 4;
+  string error_code = 8;
   .antigravity.localharness.TrajectoryStateUpdate.StopReason stop_reason = 5;
 }
 message TrajectoryUsageEntry {
Original file line number	Diff line number	Diff line change
`@@ -548,6 +548,7 @@ message TrajectoryStateUpdate {`
`548`	`548`	`int32 depth = 7;`
`549`	`549`	`.antigravity.localharness.TrajectoryStateUpdate.State state = 3;`
`550`	`550`	`string error = 4;`
	`551`	`+ string error_code = 8;`
`551`	`552`	`.antigravity.localharness.TrajectoryStateUpdate.StopReason stop_reason = 5;`
`552`	`553`	`}`
`553`	`554`	`message TrajectoryUsageEntry {`