Agent Mailbox

Use this skill for a very lightweight internal mail system between OpenClaw agent workspaces.

Design goals

• No central registry
• No guaranteed delivery
• No push notifications
• No group-message storms
• Best-effort fanout only
• Per-workspace local inboxes
• Token-efficient reads: each agent reads only its own inbox
• Advisory context only, not an execution bus
• Local filesystem only, not cloud sync or webhook delivery

This is a middle layer between long-term memory and chat messaging.

Safety boundary