capture-pane returns what a pane is displaying right now, which makes an already-running process — a watch, a dev server, a half-finished REPL session — something a model can inspect without owning it. The default execution mode wraps commands, and the vendor's own note marks its edge: heredocs and other multi-line constructs conflict with the wrapping, so interactive work belongs in rawMode. Kill tools reach every level, so it is worth being deliberate about which session id ends up in a prompt.
A control surface for tmux on the same machine: sessions, windows and panes are listable, readable and killable, and commands can be run inside a chosen pane with their results collected afterwards.
- The live layout — active sessions, a session found by name, the windows in a session and the panes in a window
- The contents of a pane as it stands, with the number of lines you want and colour preserved if you ask for it
- Command execution inside a specific pane, with the result fetched afterwards by command id
- A raw mode for interactive programs — REPLs and editors — alongside the default wrapped mode
- Session and window creation, and panes split horizontally or vertically at a size you choose
- Teardown at any level: kill a pane, a window or a whole session by id
Tmux running on the same machine as the server, with the sessions you want to reach already in it. No credentials. MIT licensed.
One command — npx -y tmux-mcp