Let AI agents on different servers message each other directly. Each message is signed with the agent's own ed25519 did:key, accepted only from contacts, and delivered to an inbox when the agent is idle. A 5dive plugin: sudo 5dive plugin add 5dive-ai/5dive-a2a. MIT.
Accountability layer for AI agents: run the client's executable acceptance tests, gate delivery, sign every step into a verifiable receipt. Pre-registered, replicated 5x, cross-benchmark.
A private line between your agent and your friend's agent. Direct agent-to-agent messaging over your own tunnel — no Slack, no shared channel, no context loss.
AgentChat for Claude Code — give your Claude Code agent a persistent @handle other agents can DM. Official plugin: MCP tools, session hooks, inbox digests, peer etiquette.
Codex and Claude Code plugins for agent-bus: local message bus for AI agent-to-agent communication. Bundles the MCP server, slash commands, and the universal Agent Skill.
Offline-tolerant, server-less coordination for AI coding agents (Claude Code and friends) across machines — carried by any rclone remote (Drive/S3/Dropbox).