Ghostty Applescript

Anti-patterns (will crash)

-- BAD: Using tab object directly with split
set t to new tab in win with configuration conf
split t direction right  -- ERROR: tab cannot receive split

-- BAD: Re-querying terminal from window after new tab
set newTab to new tab in win with configuration conf
set t to terminal 1 of selected tab of win  -- ERROR: "not in a splittable window"

Correct patterns

-- Current tab in current window
set win to front window
set t to focused terminal of selected tab of win

-- New tab in current window
set newTab to new tab in win with configuration conf
set t to focused terminal of newTab

-- New window
set win to new window with configuration conf
set t to focused terminal of selected tab of win

Command Syntax Reference

Wrong prepositions cause silent failures or error -1723 / -2741.

Syntax Rules

• Direction values are bare keywords: right, left, down, up
  • direction "right" does NOT work
• Append & return to send a newline with input text

Surface Configuration

set cfg to new surface configuration
set initial working directory of cfg to "/path/to/project"
set font size of cfg to 13
set command of cfg to "zsh"
set environment variables of cfg to {"EDITOR=nvim", "FOO=bar"}

Working directory inheritance on split is undocumented. Always pass a configuration explicitly.

Layout Patterns

2x3 Grid

Two approaches exist. Default to row-first unless the user prefers otherwise.

Row-first (default): split rows, then columns per row

Each row can be equalized independently. Better when top/bottom rows have different column counts.

tell application "Ghostty"
    set conf to new surface configuration
    set initial working directory of conf to "/path/to/project"

    set win to front window
    set newTab to new tab in win with configuration conf
    set top1 to focused terminal of newTab

    -- Split into 2 rows
    set bot1 to split top1 direction down with configuration conf

    -- Split top row into 3 columns
    set top2 to split top1 direction right with configuration conf
    set top3 to split top2 direction right with configuration conf
    perform action "equalize_splits" on top1

    -- Split bottom row into 3 columns
    set bot2 to split bot1 direction right with configuration conf
    set bot3 to split bot2 direction right with configuration conf
    perform action "equalize_splits" on bot1

    -- Run commands
    input text "vim" & return to top1
    input text "lazygit" & return to bot2
    focus top1
end tell

Column-first: split columns, equalize, then split each column down

Simpler when every column has the same row count.

tell application "Ghostty"
    set conf to new surface configuration
    set initial working directory of conf to "/path/to/project"

    set win to front window
    set newTab to new tab in win with configuration conf
    set col1 to focused terminal of newTab

    -- Split into 3 columns
    set col2 to split col1 direction right with configuration conf
    set col3 to split col2 direction right with configuration conf
    perform action "equalize_splits" on col1

    -- Split each column into 2 rows
    set bot1 to split col1 direction down with configuration conf
    set bot2 to split col2 direction down with configuration conf
    set bot3 to split col3 direction down with configuration conf

    -- Run commands
    input text "vim" & return to col1
    input text "lazygit" & return to bot2
    focus col1
end tell

Multi-tab with Splits

tell application "Ghostty"
    set conf to new surface configuration
    set initial working directory of conf to "/path/to/project"

    set w to new window with configuration conf
    set t1 to focused terminal of selected tab of w
    set t2 to split t1 direction right with configuration conf

    input text "npm run dev" & return to t1
    input text "tail -f logs/dev.log" & return to t2

    -- New tab
    set tab2 to new tab in w with configuration conf
    set t3 to focused terminal of tab2
    input text "nvim ." & return to t3

    -- Return to first tab
    select tab (tab 1 of w)
    focus t1
end tell

Equalizing Splits

split always divides 50:50. Sequential splits produce uneven panes (e.g. 50|25|25). Use equalize_splits after creating splits in each row/group.

-- After splitting into 3 columns:
perform action "equalize_splits" on anyTerminalInWindow

Available Actions (perform action)

• equalize_splits — Equalize all splits in the window
• resize_split:direction,pixels — Resize split (e.g. resize_split:right,50)
• toggle_split_zoom — Zoom/unzoom current split
• new_split:direction — New split
• goto_split:direction — Navigate to adjacent split
• close_surface — Close pane

Zellij KDL Conversion

Documentation Reliability

Reference: https://ghostty.org/docs/features/applescript

Execution

osascript path/to/layout.applescript

Requires macOS Automation permission (TCC). A dialog appears on first run. Disable with macos-applescript = false in Ghostty config.