The Astros released Coleman on Aug. 9.
The Astros designated Coleman for assignment Tuesday.
Coleman was recalled from Triple-A Sugar Land on Tuesday.
The Astros optioned Coleman to Triple-A Sugar Land on Thursday, Chandler Rome of The Athletic reports.
The Astros acquired Coleman from the Royals on Wednesday in exchange for Carlos Mateo, Anne Rogers and Jonathan Mayo of MLB.com report.
Coleman was optioned to Triple-A Omaha after Monday's game.
Coleman (0-2) allowed two runs on one hit and a hit-by-pitch without recording an out to take the loss Monday versus the Athletics.
Kansas City recalled Coleman from Triple-A Omaha on Wednesday.
Coleman was optioned to Triple-A Omaha by the Royals on Thursday.
Coleman has allowed one earned run on four hits and three walks while striking out six over three innings across three Cactus League appearances.