imsg

imsg is a skill for Claude Code, Codex from kaivyy/kabot. It costs 19 tokens per session (400 once invoked), scanned A, a copy of imsg, MIT.

A command-line workflow for reading and sending iMessage or SMS messages through Apple's Messages app on macOS.

In plain words
What is it for?
Use it to list chats, read or watch conversation history, and send text messages or attachments to a specified recipient.
Why use it?
It provides terminal-based access to conversations instead of requiring the developer to handle every message in the app manually.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to list chats, read or watch conversation history, and send text messages or attachments to a specified recipient.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kaivyy/kabot/imsg
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add kaivyy/kabot --skill imsg
Clone the repo
git clone --depth 1 https://github.com/kaivyy/kabot

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for imsg

README.md
[![agentmods](https://agentmods.dev/badge/skills/kaivyy/kabot/imsg.svg)](https://agentmods.dev/skills/kaivyy/kabot/imsg)
Your own site
<a href="https://agentmods.dev/skills/kaivyy/kabot/imsg"><img src="https://agentmods.dev/badge/skills/kaivyy/kabot/imsg.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 400 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.00400
Opus 5 $0.00010 $0.00200
Sonnet 5 $0.00004 $0.00080
Haiku 4.5 $0.00002 $0.00040

Measured 7d ago against content hash 845d93b8e4f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

imsg scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

92% identical to imsg — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

kabot/skills/imsg/SKILL.md · 75 lines

What it actually says

imsg Actions

Overview

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

Requirements: Messages.app signed in, Full Disk Access for your terminal, and Automation permission to control Messages.app for sending.

Inputs to collect

  • Recipient handle (phone/email) for send
  • chatId for history/watch (from imsg chats --limit 10 --json)
  • text and optional file path for sends

Actions

List chats

imsg chats --limit 10 --json

Fetch chat history

imsg history --chat-id 1 --limit 20 --attachments --json

Watch a chat

imsg watch --chat-id 1 --attachments

Send a message

imsg send --to "+14155551212" --text "hi" --file /path/pic.jpg

Notes

  • --service imessage|sms|auto controls delivery.
  • Confirm recipient + message before sending.

Ideas to try

  • Use imsg chats --limit 10 --json to discover chat ids.
  • Watch a high-signal chat to stream incoming messages.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 75 lines · 19 tokens per session scan A 845d93b8e4f0

Subscribe to this mod's changes

imsg is a skill published in the GitHub repository kaivyy/kabot (20 stars, last pushed 5mo ago), licensed MIT. It adds 19 tokens to every session and 400 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to imsg, differing in 2 lines, and is treated as a copy.

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