add-imessage

An iMessage connection for NanoClaw with two choices: a Mac-based connection that reads the local Messages database, or a hosted connection through photon.codes that works on any operating system.

In plain words
What is it for?
Use it to receive and send iMessages either from a Mac with Full Disk Access or through the hosted iMessage service.
Why use it?
It lets NanoClaw communicate through iMessage without requiring the same setup for every computer.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/nanocoai/nanoclaw/add-imessage
Any agent
npx skills add nanocoai/nanoclaw --skill add-imessage
Clone the repo
git clone --depth 1 https://github.com/nanocoai/nanoclaw

Made for: Claude Code, Codex.

Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,386 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00092 $0.03386
Opus 5 $0.00046 $0.01693
Sonnet 5 $0.00018 $0.00677
Haiku 4.5 $0.00009 $0.00339

Measured yesterday against content hash 5bd6f3577187, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

add-imessage 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 yesterday.

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.

.claude/skills/add-imessage/SKILL.md · 317 lines

How it starts

The opening of the file, as written. The whole thing — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add iMessage

NanoClaw talks to iMessage through a single imessage channel with two pluggable backends:

  • Local (this Mac) — the Chat SDK bridge over chat-adapter-imessage, reading this Mac's signed-in iMessage account (chat.db). macOS only; the Node binary needs Full Disk Access.
  • Hosted iMessage (via photon.codes) — a native adapter over Photon's spectrum-ts gRPC stream. The hosted service owns the iMessage line, so there's no Mac relay, webhook, or public URL. Works on any OS, and a device-login flow provisions everything for you.

Both register the same imessage channel type; only one runs per install. NanoClaw doesn't ship channels in trunk — this skill copies the unified imessage adapter in from the channels branch. Full reference: docs/imessage.md.

The mechanical steps under Apply carry nc: directive fences: an agent reads the prose and applies them, and a parser can apply them deterministically from the same document. Every directive is idempotent, so the whole skill is safe to re-run; anything a parser can't apply falls back to the prose beside it.

Apply

1. Choose a backend

Pick the backend first — it decides which package gets installed and which walkthrough runs below (the other backend's steps are skipped):

How should iMessage run — `local` (this Mac's signed-in iMessage account; macOS only, needs Full Disk Access) or `hosted` (a managed line via photon.codes; works on any OS)?

The local backend only works on a Mac — it reads this machine's iMessage chat.db directly, and there is no such database off macOS. On any other OS, stop here and choose hosted instead; otherwise you'd write a local config that can never receive a message:

[ "$(uname)" = Darwin ]

2. Copy the adapter

Fetch the channels branch and copy the unified iMessage adapter and its tests into src/channels/:

src/channels/imessage.ts
src/channels/imessage.test.ts
src/channels/imessage-registration.test.ts

Read the full file on GitHub · 317 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. yesterday First seen · 317 lines · 92 tokens per session scan A 5bd6f3577187

Subscribe to this mod's changes

add-imessage is a skill published in the GitHub repository nanocoai/nanoclaw (30,661 stars, last pushed today), licensed MIT. It adds 92 tokens to every session and 3,386 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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