---
name: xmtp-agents-318e0d7c2509
description: >
  Building and extending XMTP agents with the Agent SDK.
  Use when: (1) creating or configuring an XMTP agent, (2) implementing agent features (commands, attachments, reactions, groups, transactions, inline actions, or domain resolution).
license: MIT
metadata:
  author: xmtp
  version: "1.0.0"
---

# XMTP agents

Build event-driven messaging agents on the XMTP network. This skill is the entry point; use the sub-skills below for specific features.

## When to apply

- Starting or configuring a new XMTP agent
- Adding behavior: commands, attachments, reactions, groups, payments, inline actions, or address/domain resolution

## Sub-skills

| Sub-skill | Use when |
|-----------|----------|
| **building-agents** | Setup, env vars, text/lifecycle events, middleware |
| **handling-commands** | Slash commands, validators, message filters, type guards |
| **handling-attachments** | Send/receive files, remote attachments, upload storage |
| **sending-reactions** | Send or receive reactions, thinking/reply patterns |
| **managing-groups** | Create groups, add members, roles, welcome-on-install |
| **handling-transactions** | USDC transfers, balance checks, transaction references |
| **creating-inline-actions** | Inline actions, confirmation/selection helpers, config menus |
| **resolving-domains** | Resolve addresses, Farcaster profiles, extract mentions |

## How to use

1. Pick the sub-skill that matches the task (e.g. slash commands → `handling-commands`).
2. Read that sub-skill’s `SKILL.md` and its `rules/` for step-by-step guidance.
3. For SDK or API details, use the xmtp-docs skill (index + specific page fetch).

## Quick start

Install the Agent SDK, create an agent from env, handle text, then start:

```bash
npm install @xmtp/agent-sdk
```

Create the agent and handle messages using patterns from **building-agents** (setup, events, middleware). For commands, attachments, reactions, groups, transactions, inline actions, or resolution, use the corresponding sub-skill above.


---
Source attribution: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/humanagent/xmtp-agent/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 clawdbot

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: kbarbel640-del
Original project: https://github.com/kbarbel640-del/skills/blob/e7e336ac628c3e3bd771aff1aaa469c93778f94a/skills/humanagent/xmtp-agent/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Product Management
Roles: Backend Developer, ML / AI Engineer, Product Manager
Specialties: API
Tools: Xmtp
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 7633b51c3e412eceac7f2ac8240279bee5bf92f0a65791d50d56f04e6d9a8f31