Worked on the zed-industries/zed repository to deliver a targeted memory optimization for ACP terminal sessions, focusing on reducing memory usage during long-running tool sessions. The solution involved truncating the Alacritty grid’s storage cache upon process exit while ensuring user-visible scrollback was preserved, addressing long-term memory growth and improving stability for ACP agents. Implemented in Rust with a focus on memory management and terminal emulation, the changes centered on the Terminal::shrink_to_used and Grid::truncate methods. A regression test was added to validate terminal output integrity, and all updates were verified through cargo nextest and continuous integration checks.