The Astros designated Harris for assignment Tuesday, Brian McTaggart of MLB.com reports.
Harris appeared in 11 games after joining the Astros in mid-April, during which he went 7-for-31 (.226) at the plate with four RBI, four runs and two steals. He'll lose his place on the active roster to make room for Zach Dezenzo, who was recalled from Triple-A Sugar Land in a corresponding move.