seance

About

Long agent sessions scroll vertically for thousands of lines, which tiling multiplexers handle poorly; Séance arranges panes as a horizontal scrolling strip and adds agent awareness — sidebar status for working, waiting-on-permission, and idle, with desktop notifications for permission requests and completions. The agents themselves are unmodified external processes; detection is automatic and other agents integrate via a hook config, while non-hook agents still get ordinary multiplexer features. A Unix-socket CLI (seance ctl) lets scripts and agents create workspaces, open panes, and read output as JSON, effectively letting an agent manage its own terminal. It is written in Zig on libghostty, supports X11 and Wayland, and installs from AUR, Nix, or AppImage. It suits Linux developers running several agent sessions who want visibility without leaving the terminal.