Ghostty Config

Gate: Verify Ghostty is installed

Run ghostty +version before anything else. If it fails:

• macOS: brew install ghostty or download from ghostty.org/download
• Linux: snap/deb/nix or build from source (ghostty.org/docs/install/build)
• Windows: community fork github.com/Thr45hx/ghostty-windows (unofficial)

Do NOT proceed until ghostty +version succeeds. Note the platform and version.

Config file

Location: ~/.config/ghostty/config

Create directory if absent: mkdir -p ~/.config/ghostty

Format: key = value, one per line, # comments, no sections or headers.

Ghostty auto-reloads most config changes. Some require restart (noted in docs).

CLI tools — use as source of truth

Never guess option names, theme names, or font names. Always discover from the CLI:

• ghostty +show-config — current config with all defaults
• ghostty +show-config --default --docs — defaults with inline documentation
• ghostty +validate-config — validate config file (MANDATORY after every write)
• ghostty +list-themes — themes available on THIS machine
• ghostty +list-fonts — fonts installed on THIS machine
• ghostty +list-keybinds — current keybind mappings
• ghostty +list-actions — all available keybind actions
• ghostty +list-colors — current color palette

Mandatory rules

1. After writing ANY config change → run ghostty +validate-config
2. Before recommending a theme → run ghostty +list-themes to confirm it exists
3. Before recommending a font → run ghostty +list-fonts to confirm it’s installed
4. Never hardcode font or theme names without runtime verification

Workflow: Provision new machine

1. ghostty +version — confirm installed, note platform
2. mkdir -p ~/.config/ghostty
3. ghostty +list-fonts — find best available font (prefer Nerd Font → monospace → system default)
4. ghostty +list-themes — pick high-contrast dark theme from what’s available
5. Read references/ai-coding-workflow-recommendations.md for opinionated defaults
6. Write config adapted to this machine’s fonts, themes, and platform
7. ghostty +validate-config — must pass with no errors

Workflow: Change theme or font

1. ghostty +list-themes or ghostty +list-fonts — browse what’s available
2. Update the relevant line in config
3. ghostty +validate-config

Workflow: Troubleshooting

• Config errors: ghostty +validate-config — shows exact errors
• Font not rendering: ghostty +list-fonts — verify the font name matches exactly
• Keybind not working: ghostty +list-keybinds — check for conflicts or typos
• Broken rendering over SSH: Ghostty needs its terminfo on the remote. Use ghostty +ssh-cache or set shell-integration-features = ssh-terminfo in config, or manually copy terminfo: infocmp -x | ssh user@host tic -x -
• Notifications not firing: Check desktop-notifications = true in config (default). On macOS, check system notification permissions for Ghostty.

Workflow: After Ghostty upgrade

1. ghostty +version — confirm new version
2. ghostty +validate-config — check if any options were deprecated or changed
3. ghostty +show-config --default --docs — review new options available
4. Update config if needed, re-validate

When to read reference files

• references/option-reference.txt — full Ghostty config reference from ghostty +show-config --default --docs (4000+ lines — grep for specific keys, don’t read the whole thing)
• references/keybind-actions.md — all keybind actions with arguments and syntax
• references/ai-coding-workflow-recommendations.md — opinionated defaults, keybind philosophy, starter config template