Agent messaging

Skill henriquescastilho/my-claude/.codex/vendor_imports/claude/marketplaces/claude-code-templates/cli-tool/components/skills/ai-maestro/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.From its SKILL.md

Install

npx -y skills add henriquescastilho/my-claude --skill agent-messaging

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

SKILL.md

3.2 KB, 758 tokens by cl100k_base, as published. Nobody here has run it

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	`[email protected]`	Within mesh
External	`[email protected]`	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

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.