Imessage

Community

AtlasOmnia

imessage

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

Overview

Publisher	AtlasOmnia
Repository	`donna-starter`
Skill name	`imessage`
Stars	131
Forks	9
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by AtlasOmnia on GitHub. Read the source before you install it.

Installation

Install the Imessage AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/AtlasOmnia/donna-starter/tree/main/skills/apple/imessage
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/AtlasOmnia/donna-starter.git /tmp/donna-starter
mkdir -p .claude/skills
cp -r /tmp/donna-starter/skills/apple/imessage .claude/skills/imessage

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Imessage in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Imessage on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Imessage is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

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
Evaluating iMessage bridge/privacy options for Hermes; see before recommending Photon/Spectrum Cloud

When NOT to Use

Telegram/Discord/Slack/WhatsApp messages → use the appropriate gateway channel
Hermes iMessage gateway integration (live bidirectional channel) → that's the BlueBubbles platform adapter in the Hermes gateway. The imsg CLI here is for one-off scripting, not persistent gateway connections.
Group chat management (adding/removing members) → not supported
Bulk/mass messaging → always confirm with user first
Sensitive/private conversations over third-party iMessage cloud bridges unless retention, logging, employee-access, attachment-cache, and training-use guarantees are verified first

Privacy Notes

Prefer local Mac-backed Messages.app/imsg workflows for maximum privacy: content stays on the Mac and uses the user's own Messages account.
Photon/Spectrum iMessage Cloud is a portability bridge, not an end-to-end-private-from-Photon path. Treat it as a trusted third-party message processor unless Photon provides zero-retention/self-hosted guarantees.
For platform privacy details and due-diligence questions,

Quick Reference

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

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

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

Watch for New Messages

bash
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

Always confirm recipient and message content before sending
Never send to unknown numbers without explicit user approval
Verify file paths exist before attaching
Don't spam — rate-limit yourself

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"

Frequently asked questions

What does the Imessage AI skill do?

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

Why use Imessage on TypingMind?

Because you install it once and use it with any model. Imessage is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Imessage in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/AtlasOmnia/donna-starter/tree/main/skills/apple/imessage. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Imessage?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Imessage?

As many as you like. As long as a model supports skills, you can use Imessage with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Imessage AI skill free?

Yes. It is published on GitHub by AtlasOmnia under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

iMessage

Prerequisites

When to Use

When NOT to Use

Privacy Notes

Quick Reference

List Chats

View History

Send Messages

Watch for New Messages

Service Options

Rules

Example Workflow

Frequently asked questions

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