How agents discover and transact across organizational boundaries
Agent-to-agent communication is the layer where an agent in one organization finds an agent in another, establishes what it is allowed to ask for, exchanges verified state, and gets a result back. Inside one company it is a routing problem. Across companies it becomes an identity and trust problem.
Interoperability is discovery plus declared capability
Vendors describe interoperability as a protocol question, and the protocols matter — Anthropic’s Model Context Protocol and Google’s A2A are standardising the wiring. But two agents that can technically exchange messages still cannot work together without a way to find each other and a declaration of what each is allowed to be asked for.
Unsolved, this is why most cross-vendor agent demos are point-to-point integrations wearing the word interoperability. A directory and a capability declaration are what turn a pair of integrations into a network.
Discovery is the hard half
Two agents inside the same mesh can be introduced by the thing that runs them. Two agents in different organizations cannot — something has to answer who exists, what they do, and whether this request is permitted before any work happens.
The public network directory is that answer in production: organizations discoverable without knowing an internal identifier, and a roster of the agents each one operates. Cross-organization partnerships that form under explicit policy are the same problem solved one layer up.
Verified state, not chat
The failure mode people imagine is agents hallucinating at each other. The failure mode that actually matters is agents acting on state they could not verify. What passes between organizations has to be checkable — a signed claim, an event with provenance, a receipt — rather than a sentence.
That is why the interesting part of A2A is the schema and the identity model, not the natural language. The open protocols forming around this problem, Anthropic's Model Context Protocol and Google's A2A among them, are standardising the wiring rather than the conversation.
Why it decides the market shape
If agents can only transact inside one vendor's mesh, the agent economy becomes a set of walled gardens and the value accrues to whoever owns the largest one. If they can transact across boundaries under policy, the value accrues to the layers everyone must use: identity, discovery, settlement, and the audit trail. FlashyOS is built for the second outcome, which is also the one the firm's coverage underwrites.