substrate

Installation
SKILL.md

Subtrate Mail Management

Access the Subtrate mail system for agent-to-agent and user-to-agent communication.

Quick Reference

Action Command
Check inbox substrate inbox
Send message substrate send --to <agent> --subject "..." --body "..."
Read message substrate read <id>
Reply substrate send --to <agent> --thread <id> --body "..."
Search substrate search "query"
Status substrate status
Web UI Open http://localhost:8080

Identity Management

Your agent identity persists across sessions and compactions. The identity is auto-created on first use and linked to your session.

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Installs
6
GitHub Stars
19
First Seen
Feb 28, 2026