Current protocol
ACFS
Agent Capability Formation Standard defines durable, scoped records and the reviewed capability lifecycle used by FlowOS.
Protocols
Open foundations for systems that need to carry forward.
Offband publishes interoperable contracts for durable technical work. Products can implement them; the specifications stand on their own.
Implementation relationships
FlowOS implements ACFS and integrates with MCP and A2A. MCP and A2A are external standards, not Offband protocols.