update-your-turn-color

update-your-turn-color

Interactively decide the ghostty-your-turn "your turn" color by previewing it live on the actual pane, then persist it to the config file once confirmed.

Config file: ${XDG_CONFIG_HOME:-$HOME/.config}/ghostty-your-turn/color.conf (line 1 holds #rrggbb). Default when unset: #6b5b95 (a mid-tone readable with either white or black text).

The Bash in this skill is run by Claude. Claude's Bash child process has no controlling tty, so the preview must be written to the tty resolved from $PPID (writing to /dev/tty directly or printf to stdout will not reach it).

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Steps

Step 1: Show the current color

CONFIG_FILE="${XDG_CONFIG_HOME:-$HOME/.config}/ghostty-your-turn/color.conf"
if [ -f "$CONFIG_FILE" ]; then
  echo "Current your-turn color: $(head -n1 "$CONFIG_FILE" | tr -d ' \t\r\n')"
else
  echo "Current your-turn color: (unset -> default #6b5b95)"
fi

Tell the user the result.

Step 2: Ask for the desired color

Use AskUserQuestion to offer candidates. Each option is just an example; the user can specify any #rrggbb via "Other". Add a note about whether it stays readable with either white or black text (very bright/dark colors become hard to read). Example candidates:

• #6b5b95 (calm purple / default / works with white or black)
• #2d6e6e (teal / suited to white text)
• #7d5a2d (amber brown / suited to white text)
• #444a55 (slate gray / suited to white text)

If the user already has a specific color, skip Step 2 and use that value.

Step 3: Preview it live

Apply the chosen color to this pane right now (replace <HEX> with the actual value).

HEX="<HEX>"   # e.g. #2d6e6e
resolve_pane_tty() {
  local pid="$PPID" i=0 t
  while [ "$i" -lt 8 ]; do
    i=$((i + 1))
    t=$(ps -o tty= -p "$pid" 2>/dev/null | tr -d ' ')
    case "$t" in
      "" | "?" | "??") : ;;
      *) printf '/dev/%s\n' "$t"; return 0 ;;
    esac
    pid=$(ps -o ppid= -p "$pid" 2>/dev/null | tr -d ' ')
    { [ -z "$pid" ] || [ "$pid" = "0" ] || [ "$pid" = "1" ]; } && return 1
  done
  return 1
}
DEV=$(resolve_pane_tty) && printf '\033]11;%s\007' "$HEX" >"$DEV" && echo "Preview applied: $HEX -> $DEV"

Ask the user "It's this color now. How does it look?"

Step 4: Confirm or retry

Use AskUserQuestion to ask "Confirm this color" vs "Try another color".

• Retry -> go back to Step 2/3 and preview another color (iterate).
• Confirm -> go to Step 5.

Step 5: Persist

Write the confirmed color to the config file (replace <HEX> with the confirmed value).

HEX="<HEX>"
CONFIG_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/ghostty-your-turn"
mkdir -p "$CONFIG_DIR"
printf '%s\n' "$HEX" >"$CONFIG_DIR/color.conf"
echo "Saved: $HEX"

The preview already shows this color, so no reset is needed (future your-turn states use this color too). Report that it was saved and finish.

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Notes

• The color is in OSC 11 form (#rrggbb). Do not use color names or the rgb: form.
• It also works on non-Ghostty OSC 11-capable terminals (e.g. iTerm2), but this skill assumes Ghostty.
• In environments where the tty cannot be resolved (e.g. headless), the preview is not applied. In that case, only write the config file and tell the user.