Humans are stuck as 'meat proxies' relaying messages between clients' AI agents — no working agent-to-agent channel exists

Summary

Agencies, consultants, and operators increasingly have clients with their own AI agents, but there is no reliable way to connect the two — so the human becomes the 'carrier pigeon': the client copies a question from their agent, the user pastes it into their own agent, copies the reply back, and repeats. The user self-describes as a 'meat proxy.' This is an acute and clearly unsolved pain directly at the center of the AI-assistant/agent-builder segment: everyone has an agent, nobody's agents can talk to each other. The early A2A protocol work and hacky 'disposable phone number for agents' projects prove the need but are not productized, trusted, or secure — there is no neutral, verifiable handshake, no per-client authorization, no audit trail, and no way for two agents to negotiate and only surface the final result for human approval. It wastes real billable hours on pure copy-paste relay, blocks the promised value of autonomous assistants, and will get worse as every client spins up an agent. Anyone building in the MCP/A2A space would pay for a safe, standard agent-to-agent channel that removes the human from the loop.