Plugin · Claude Code · AI Agents

Userad Agentmail

userad-agentmail is a Claude Code plugin for the Build phase that adds AgentMail inter-agent messaging between coding agents in tmux sessions.

by UserAd · github.com/UserAd/AgentMail

Wire multiple Claude Code agents in separate tmux panes so they can send and receive messages without copy-pasting between sessions.

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Install

Add it to Claude Code

Install the plugin in Claude Code. One command, paste-ready.

Install the plugin
/plugin install userad-agentmail@UserAd/AgentMail
Add to ClaudeUse the Agent APISkillselion is itself an MCP server - your agent can fetch this config directly.
Agent API

Built to be called by your agent

Skillselion is itself an MCP server. Your agent can pull this entry and a paste-ready install config straight from the API - no copy-paste.

Retrieve this entry with skillselion.get_details("plugin:UserAd/AgentMail") and the paste-ready config with skillselion.get_install_config("plugin:UserAd/AgentMail").

About

What it does

userad-agentmail is a Skillselion-listed Claude Code plugin marketplace entry for AgentMail, an inter-agent communication layer for tmux. Solo builders running more than one coding agent in parallel often lose context when each session is isolated; AgentMail lets those agents exchange messages within the same machine session layout. The listing describes a one-plugin bundle aimed at multi-agent messaging keywords such as inter-agent, tmux, windows, and ai-workflow. It fits builders who orchestrate agents in tmux rather than those who only need a single Claude Code window. Install through the AgentMail marketplace repo, enable the plugin in Claude Code, and use it when your workflow depends on agents talking to each other across panes. It is agent infrastructure, not a replacement for human team chat or customer support tooling.

Highlights

  • AgentMail plugin for inter-agent communication inside tmux sessions
  • Send and receive messages between agents running in different tmux windows or panes
  • Built for multi-agent AI workflows where several coding agents work in parallel
  • Focused on session-local messaging, not external email or user-facing chat
  • Single-plugin marketplace entry (pluginCount: 1) from UserAd/AgentMail

Why builders use it

Running multiple agents in separate tmux windows makes handoffs manual and error-prone because nothing routes messages between those sessions automatically.

After you register the marketplace and enable AgentMail, agents in different tmux contexts can exchange structured messages as part of your multi-agent build loop.

At a glance

  • Type - Plugin in AI Agents.
  • Adoption - 0 installs, 1 stars, 0 votes.

FAQ

Who is userad-agentmail for?

It is for developers who run multiple AI coding agents in tmux and need those agents to message each other inside the same host session.

When should I use userad-agentmail?

Use it during Build when you are coordinating parallel agent tasks—such as planner and implementer roles—across tmux windows instead of pasting context by hand.

How do I add userad-agentmail to my agent?

Add the UserAd/AgentMail marketplace to Claude Code, install the AgentMail plugin from that marketplace, and configure it for your tmux-based multi-agent layout.

Discussion

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