BrightbeamAI

CHAP: Collaborative Human-Agent Protocol for structured human-AI accountability in multi-agent deployments

Researchers from BrightbeamAI introduce CHAP (Collaborative Human-Agent Protocol), a protocol specification for formalizing human-agent collaboration in production multi-agent systems. CHAP defines shared workspaces, structured override events with diffs and rationales, non-repudiable signed approvals, and an append-only evidence log, filling a gap left by MCP (tool access) and A2A (agent-to-agent interoperability). The protocol ships with a reference implementation, conformance suite, and worked examples. It targets high-stakes deployments in domains like clinical decisions, contracts, and code where human judgment must be auditable and replayable.