Install
npx skillscat add openclaw/openclaw/imsg Install via the SkillsCat registry.
About this skill
The imsg skill provides a command-line interface for interacting with the macOS Messages app to list chats, view conversation history, and send text or file attachments. It enables agents to manage iMessage and SMS communications directly from a terminal. Use this skill when an agent needs to read or send messages to phone numbers or Apple IDs on macOS.
SKILL.md
imsg
Use imsg to read and send iMessage/SMS via macOS Messages.app.
When to Use
✅ USE this skill when:
- User explicitly asks to send iMessage or SMS
- Reading iMessage conversation history
- Checking recent Messages.app chats
- Sending to phone numbers or Apple IDs
When NOT to Use
❌ DON'T use this skill when:
- Telegram messages → use
messagetool withchannel:telegram - Signal messages → use Signal channel if configured
- WhatsApp messages → use WhatsApp channel if configured
- Discord messages → use
messagetool withchannel:discord - Slack messages → use
slackskill - Group chat management (adding/removing members) → not supported
- Bulk/mass messaging → always confirm with user first
- Replying in current conversation → just reply normally (Clawdbot routes automatically)
Requirements
- macOS with Messages.app signed in
- Full Disk Access for terminal
- Automation permission for Messages.app (for sending)
Common Commands
List Chats
imsg chats --limit 10 --jsonView History
# By chat ID
imsg history --chat-id 1 --limit 20 --json
# With attachments info
imsg history --chat-id 1 --limit 20 --attachments --jsonWatch for New Messages
imsg watch --chat-id 1 --attachmentsSend Messages
# Text only
imsg send --to "+14155551212" --text "Hello!"
# With attachment
imsg send --to "+14155551212" --text "Check this out" --file /path/to/image.jpg
# Specify service
imsg send --to "+14155551212" --text "Hi" --service imessage
imsg send --to "+14155551212" --text "Hi" --service smsService Options
--service imessage— Force iMessage (requires recipient has iMessage)--service sms— Force SMS (green bubble)--service auto— Let Messages.app decide (default)
Safety Rules
- Always confirm recipient and message content before sending
- Never send to unknown numbers without explicit user approval
- Be careful with attachments — confirm file path exists
- Rate limit yourself — don't spam
Example Workflow
User: "Text mom that I'll be late"
# 1. Find mom's chat
imsg chats --limit 20 --json | jq '.[] | select(.displayName | contains("Mom"))'
# 2. Confirm with user
# "Found Mom at +1555123456. Send 'I'll be late' via iMessage?"
# 3. Send after confirmation
imsg send --to "+1555123456" --text "I'll be late"