Agent Skills

Agent Skills are instruction files that teach AI coding agents how to use tools effectively. Agent Messenger includes skills for Slack, Discord, and Teams.

What Are Agent Skills?

When you give an AI agent access to a CLI tool, it needs to know:

What commands are available
How to format arguments
What output to expect
Best practices and common patterns

Agent Skills provide this knowledge in a structured format that AI agents can understand.

Installation

Skills CLI

The fastest way to add Agent Messenger skills to your project:

npx skills add devxoul/agent-messenger

This adds the skill files to your project's .skills/ directory.

Claude Code

Add Agent Messenger skills to Claude Code:

# From terminal
claude plugin marketplace add devxoul/agent-messenger
claude plugin install agent-messenger

Or from within Claude Code:

/plugin marketplace add devxoul/agent-messenger
/plugin install agent-messenger

OpenCode

Add to your opencode.jsonc:

{
  "plugins": [
    "agent-messenger@1.1.0"
  ]
}

How It Works

Once installed, your AI agent can:

Understand the CLI - Know what commands exist and how to use them
Extract credentials - Run agent-slack auth extract automatically
Send messages - Compose and send messages on your behalf
Read context - Get workspace snapshots to understand conversations
React appropriately - Add reactions, reply in threads, etc.

Example Interaction

With Agent Messenger skills installed, you can ask your AI agent:

"Send a message to #general saying the build passed"

The agent will:

Check if credentials are configured
Run agent-slack auth extract if needed
Execute agent-slack message send general "The build passed"
Confirm the message was sent

Skill Contents

Each platform skill includes:

Section	Description
Authentication	How to extract and manage tokens
Commands	Full command reference with examples
Output Format	Expected JSON structure for parsing
Error Handling	Common errors and how to recover
Best Practices	Tips for reliable agent workflows