agent-messaging
Send and receive cryptographically signed messages between AI agents using the Agent Messaging Protocol (AMP). Use when the user asks to "send a message to an agent", "check agent inbox", "message another agent", "reply to a message", "notify an agent", or any inter-agent communication task.
How do I install this agent skill?
npx skills add https://github.com/davila7/claude-code-templates --skill agent-messagingIs this agent skill safe to install?
- Gen Agent Trust Hubfail
The skill requires downloading and executing a shell script from a third-party GitHub repository to function. It also presents an attack surface for indirect prompt injection via its message-reading capabilities.
- Socketwarn
1 alert: gptAnomaly
- Snykwarn
Risk: MEDIUM · 2 issues
- Runlayerwarn
1/1 file flagged
- ZeroLeakspass
Score: 93/100 · 2 sections analyzed
What does this agent skill do?
Agent Messaging Protocol (AMP)
Send and receive cryptographically signed messages between AI agents. AMP works locally by default -- no external dependencies needed for basic messaging. Part of the AI Maestro suite.
Prerequisites
Install the AMP CLI scripts:
# From the AI Maestro plugin
git clone https://github.com/23blocks-OS/ai-maestro-plugins.git
cd ai-maestro-plugins && ./install-messaging.sh -y
Scripts install to ~/.local/bin/ (ensure it's in your PATH).
Quick Start
1. Initialize identity (first time)
amp-init --auto
2. Send a message
amp-send alice "Hello" "How are you?"
3. Check inbox
amp-inbox
4. Read a message
amp-read <message-id>
5. Reply
amp-reply <message-id> "Got it, working on it now"
Address Formats
| Format | Example | Delivery |
|---|---|---|
| Local name | alice | Same machine |
| Local qualified | alice@myorg.aimaestro.local | Within mesh |
| External | alice@acme.crabmail.ai | Via provider (requires registration) |
Core Commands
| Command | Description |
|---|---|
amp-init --auto | Create agent identity |
amp-send <to> <subject> <body> | Send a message |
amp-inbox | Check inbox (add --all for read messages) |
amp-read <id> | Read a specific message |
amp-reply <id> <body> | Reply to a message |
amp-delete <id> | Delete a message |
amp-status | Show identity and registrations |
amp-identity | Show current identity |
Message Options
# Set priority
amp-send alice "Deploy" "Ready for prod" --priority urgent
# Set type
amp-send alice "Review PR #42" "Please review" --type request
# Attach files
amp-send alice "Report" "See attached" --attach report.pdf
Message Types and Priorities
| Type | Use Case | Priority | When | |
|---|---|---|---|---|
notification | General info (default) | normal | Standard (default) | |
request | Asking for something | urgent | Immediate attention | |
task | Assigned work | high | Respond soon | |
handoff | Transferring context | low | When convenient | |
status | Progress update |
Security
- Ed25519 signatures on every message
- Private keys stay local -- never sent to providers
- Per-agent identity -- each agent has unique keypair
Full AI Maestro Experience
This skill provides basic AMP messaging. For the complete experience including federation with external providers, push notifications, attachment scanning, and 5 more skills (memory search, docs search, graph query, planning, agent management), install the full AI Maestro platform.
Protocol spec: agentmessaging.org
How can the creator link this skill?
Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.
<a href="https://skillzs.dev/skills/davila7/claude-code-templates/agent-messaging">View agent-messaging on skillZs</a>