imsg
iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.
Best use case
imsg is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.
Teams using imsg should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/imsg/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How imsg Compares
| Feature / Agent | imsg | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# 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 `message` tool with `channel:telegram`
- Signal messages → use Signal channel if configured
- WhatsApp messages → use WhatsApp channel if configured
- Discord messages → use `message` tool with `channel:discord`
- Slack messages → use `slack` skill
- 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
```bash
imsg chats --limit 10 --json
```
### View History
```bash
# By chat ID
imsg history --chat-id 1 --limit 20 --json
# With attachments info
imsg history --chat-id 1 --limit 20 --attachments --json
```
### Watch for New Messages
```bash
imsg watch --chat-id 1 --attachments
```
### Send Messages
```bash
# 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 sms
```
## Service Options
- `--service imessage` — Force iMessage (requires recipient has iMessage)
- `--service sms` — Force SMS (green bubble)
- `--service auto` — Let Messages.app decide (default)
## Safety Rules
1. **Always confirm recipient and message content** before sending
2. **Never send to unknown numbers** without explicit user approval
3. **Be careful with attachments** — confirm file path exists
4. **Rate limit yourself** — don't spam
## Example Workflow
User: "Text mom that I'll be late"
```bash
# 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"
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