Keybindings - Loop

Default shortcuts

Shortcut	Action
`Enter`	Send the message
`Shift+Enter`, `Ctrl+Enter`, `Ctrl+J`	Insert a newline
`Escape`	Interrupt the current turn
`Ctrl+C`	Clear the input (press twice to quit)
`Ctrl+D`	Quit
`Ctrl+L`	Model picker
`Ctrl+P`	Next model in the scoped list
`Ctrl+Shift+P`	Previous model
`Shift+Tab`	Cycle thinking level (`off`, `low`, `medium`, `high`)
`Ctrl+T`	Show or hide the thinking block
`Ctrl+O`	Expand or collapse tool, thinking, and workflow detail
`Ctrl+X`	Copy the last assistant message
`Ctrl+G`	Open the input in `$EDITOR`
`Alt+Enter`	Queue a follow-up while a turn is running
`Alt+Up`	Remove the last queued follow-up
`Escape` `Escape`	Double-escape action (default: session tree)

The composer also uses readline-style movement: arrows, Ctrl+A / Ctrl+E for line ends, Alt+Left / Alt+Right for words, Ctrl+W and Ctrl+U / Ctrl+K for deletions.

Overrides

~/.loop/agent/keybindings.json is a flat map. Each entry is an action id and the key that should trigger it:

{
  "app.interrupt": "escape",
  "app.clear": "ctrl+c",
  "app.exit": "ctrl+d",
  "tui.input.submit": "enter",
  "tui.input.newLine": "shift+enter",
  "app.model.select": "ctrl+l",
  "app.model.cycleForward": "ctrl+p",
  "app.model.cycleBackward": "ctrl+shift+p",
  "app.thinking.cycle": "shift+tab",
  "app.thinking.toggle": "ctrl+t",
  "app.tools.expand": "ctrl+o",
  "app.message.copy": "ctrl+x",
  "app.message.followUp": "alt+enter",
  "app.message.dequeue": "alt+up",
  "app.editor.external": "ctrl+g"
}

Short ids work too (interrupt, submit, newLine, modelSelect). The reverse form — key as the field name, action as the value — is also accepted. Keys are lowercased; cmd and command mean super, and option means alt.

Action id	Default
`app.session.new`	unbound
`app.session.tree`	unbound
`app.session.fork`	unbound
`app.session.resume`	unbound

Those session actions have no default key. Bind them if you want a shortcut besides /new, /tree, /fork, and /resume.

Double-escape

{
  "doubleEscapeAction": "tree"
}

Value	Action
`tree`	Open the session tree (default)
`fork`	Start a fork from an earlier message
`none`	Do nothing

External editor

Ctrl+G opens the current input in $EDITOR. Save and close the editor to bring the text back.