imessage – Coding skill for AI agents

Send and receive iMessages/SMS via the imsg CLI on macOS.

CodingSKILL.mdClaude Code · Codex · Hermes · DeepSeek

Install the imessage skill with one command

Pick the tool you use, copy the command and paste it in your terminal. The skill lands in that tool's skills folder and is ready in your next session.

Claude Code

mkdir -p ~/.claude/skills && curl -fsSL https://skill.dn1nguoi.com/z/imessage-98971.tgz | tar xz -C ~/.claude/skills

Call it in Claude Code: /imessage – then describe the task you want done.

Codex

mkdir -p ~/.codex/skills && curl -fsSL https://skill.dn1nguoi.com/z/imessage-98971.tgz | tar xz -C ~/.codex/skills

Call it in Codex: $imessage – then describe the task you want done.

Hermes Agent

mkdir -p ~/.hermes/skills && curl -fsSL https://skill.dn1nguoi.com/z/imessage-98971.tgz | tar xz -C ~/.hermes/skills

Call it in Hermes Agent: /imessage – then describe the task you want done.

DeepSeek

mkdir -p ~/.deepcode/skills && curl -fsSL https://skill.dn1nguoi.com/z/imessage-98971.tgz | tar xz -C ~/.deepcode/skills

Call it in DeepSeek: /imessage – then describe the task you want done.

SKILL.md content

iMessage

Use imsg to read and send iMessage/SMS via macOS Messages.app.

Prerequisites

macOS with Messages.app signed in
Install: brew install steipete/tap/imsg
Grant Full Disk Access for terminal (System Settings → Privacy → Full Disk Access)
Grant Automation permission for Messages.app when prompted

When to Use

User asks to send an iMessage or text message
Reading iMessage conversation history
Checking recent Messages.app chats
Sending to phone numbers or Apple IDs

When NOT to Use

Telegram/Discord/Slack/WhatsApp messages → use the appropriate gateway channel
Group chat management (adding/removing members) → not supported
Bulk/mass messaging → always confirm with user first

Quick Reference

List Chats

imsg chats --limit 10 --json

View History

# By chat ID
imsg history --chat-id 1 --limit 20 --json

# With attachments info
imsg history --chat-id 1 --limit 20 --attachments --json

Send Messages

# Text only
imsg send --to "+14155551212" --text "Hello!"

# With attachment
imsg send --to "+14155551212" --text "Check this out" --file /path/to/image.jpg

# Force iMessage or SMS
imsg send --to "+14155551212" --text "Hi" --service imessage
imsg send --to "+14155551212" --text "Hi" --service sms

Watch for New Messages

imsg watch --chat-id 1 --attachments

Service Options

--service imessage — Force iMessage (requires recipient has iMessage)
--service sms — Force SMS (green bubble)
--service auto — Let Messages.app decide (default)

Rules

1. Always confirm recipient and message content before sending

2. Never send to unknown numbers without explicit user approval

3. Verify file paths exist before attaching

4. Don't spam — rate-limit yourself

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"

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