reaatech/agent-handoff-protocol

These packages give you a complete lifecycle for transferring a conversation from one AI agent to another mid-session, including compressing the conversation history, scoring and selecting the best target agent, validating payload compatibility, delivering the handoff via MCP or A2A transport, and handling rejection with fallback alternatives. You would adopt them to solve the problem of routing a live multi-turn conversation between specialized agents without losing context or requiring the user to repeat themselves. The most distinctive thing is that every stage—compression, routing, validation, transport, and rejection handling—is a separate, pluggable package with zero runtime dependencies, so you can compose only the pieces you need and inject your own implementations for any stage.