c-messaging

c-messaging is a skill for Claude Code, Codex from daxaur/openpaw. It costs 42 tokens per session (558 once invoked), scanned A, original, MIT.

A command-line messaging tool for iMessage, SMS, and WhatsApp conversations on supported devices.

In plain words
What is it for?
Use it to send individual or group messages, list recent conversations, read chat history, check unread messages, and view contacts.
Why use it?
It lets an agent read chats and send messages without switching between messaging applications manually.

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/daxaur/openpaw/c-messaging
Any agent
npx skills add daxaur/openpaw --skill c-messaging
Clone the repo
git clone --depth 1 https://github.com/daxaur/openpaw

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 c-messaging

README.md
[![agentmods](https://agentmods.dev/badge/skills/daxaur/openpaw/c-messaging.svg)](https://agentmods.dev/skills/daxaur/openpaw/c-messaging)
Your own site
<a href="https://agentmods.dev/skills/daxaur/openpaw/c-messaging"><img src="https://agentmods.dev/badge/skills/daxaur/openpaw/c-messaging.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 558 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 $0.00042 $0.00558
Opus 5 $0.00021 $0.00279
Sonnet 5 $0.00008 $0.00112
Haiku 4.5 $0.00004 $0.00056

Measured 5d ago against content hash 13ff1a623921, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

c-messaging 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 5d 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.

skills/c-messaging/SKILL.md · 52 lines

What it actually says

This skill manages messaging via imsg (iMessage/SMS) and wacli (WhatsApp). Check availability with which imsg wacli.

iMessage & SMS — imsg

imsg send "Phone or Email" "Message text"  # Send a message
imsg send "+14155551234" "Hello!"
imsg send "[email protected]" "Hey there"
imsg list                                   # List recent conversations
imsg list --limit 10                        # Last 10 conversations
imsg read "+14155551234"                    # Read conversation with contact
imsg read "+14155551234" --limit 20         # Read last 20 messages
imsg unread                                 # Show unread messages
imsg group send "Group Name" "Message"      # Send to a group chat
imsg group list                             # List group chats
imsg contacts                               # List contacts

WhatsApp — wacli

wacli send "+14155551234" "Message text"    # Send a message
wacli send "Contact Name" "Hello!"          # Send by name (if in contacts)
wacli list                                  # List recent chats
wacli read "+14155551234"                   # Read conversation
wacli read "+14155551234" --limit 20
wacli unread                                # Show unread messages
wacli group list                            # List WhatsApp groups
wacli group send "Group Name" "Message"
wacli status "Your status text"            # Set WhatsApp status

Usage Guidelines

  • Use imsg for iMessage/SMS to Apple devices or phone numbers.
  • Use wacli for WhatsApp contacts.
  • Phone numbers should include country code (e.g., +1 for US).
  • Check imsg unread or wacli unread before sending follow-ups.
  • If a contact name is ambiguous, prefer using the phone number directly.

Notes

  • imsg requires macOS and an active iMessage account.
  • wacli requires WhatsApp to be linked — run wacli auth to scan QR code on first use.
  • Both tools operate locally; no cloud API credentials required after initial auth.
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. 5d ago First seen · 52 lines · 42 tokens per session scan A 13ff1a623921

Subscribe to this mod's changes

c-messaging is a skill published in the GitHub repository daxaur/openpaw (167 stars, last pushed 3mo ago), licensed MIT. It adds 42 tokens to every session and 558 once invoked, about $0.0002 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.