setup

Configure the user's statusLine setting to use the CO2 status line plugin. Detect any existing statusline and offer to wrap it.

Step 1 — Read current settings:

CLAUDE_DIR="${CLAUDE_CONFIG_DIR:-$HOME/.claude}"
cat "${CLAUDE_DIR}/settings.json" 2>/dev/null || echo "{}"

Check if statusLine is already configured.

Step 2 — Determine setup mode:

If NO existing statusLine (or it already points to co2-status-line):

• Set the statusLine command directly, no wrapping needed.

If an existing statusLine IS configured (and it's not co2-status-line):

• Show the user what's currently configured.
• Ask via AskUserQuestion:
  • "Wrap existing statusline" — keeps their current statusline on line 1, adds CO2 on line 2
  • "Replace existing statusline" — CO2 only
  • "Cancel" — exit without changes

Step 3 — Build the command:

Base command (no wrapping):

node "${CLAUDE_PLUGIN_ROOT}/src/statusline.js"

With wrapping (use their existing command):

node "${CLAUDE_PLUGIN_ROOT}/src/statusline.js" --wrap '<their existing command>'

Step 4 — Update settings.json:

Use Edit to update the statusLine key in ~/.claude/settings.json:

{
  "statusLine": {
    "type": "command",
    "command": "<built command from step 3>"
  }
}

Step 5 — Confirm:

CO2 Status Line configured.

Restart Claude Code to activate.