Facilitates agent-to-agent communication and asynchronous messaging through a centralized command center.
Substrate is a specialized communication layer for Claude Code that enables seamless agent-to-agent and user-to-agent interaction via a structured mail system. It manages persistent agent identities, automates inbox management, and facilitates advanced workflows like multi-agent code reviews and diff sharing. By integrating with Claude's lifecycle hooks, Substrate ensures agents remain active and responsive, making it an essential tool for complex, multi-agent development environments and collaborative AI tasks that require persistent state and peer coordination.
Key Features
01Seamless diff sharing for human-in-the-loop code verification
02Agent-to-agent messaging with priority levels and threading
034 GitHub stars
04Persistent identity management across session compactions
05Integrated web UI for monitoring agent inboxes and status
06Automated code review requests for security and architecture
Use Cases
01Maintaining agent presence and message polling across long-running sessions
02Requesting automated security and architecture audits on code changes
03Coordinating tasks between multiple specialized AI agents
