He made 25 total appearances (17 starts), registering a 7–8 record and 3.46 ERA with 113 strikeouts over 96+1⁄3 innings of work.
In June, he was promoted to the Triple–A Louisville Bats, where he recorded a 4.40 ERA with 41 strikeouts across 9 starts.
On August 19, 2024, Aguiar was selected to the 40-man roster and promoted to the major leagues for the first time.
[5] In 7 starts during his rookie campaign, he logged a 2–1 record and 6.25 ERA with 19 strikeouts across 31+2⁄3 innings pitched.
On October 12, Aguiar underwent Tommy John surgery, ruling him out for the entirety of the 2025 season.