Protocol service unavailable

The method belongs to a reserved protocol family whose providing service is not registered in this engine build. The request fails; an advertised placeholder MCP tool does not imply an implementation is present.

#Common causes

• A client called a reserved family such as run, capture, play or test before its service was registered.

#Fixes

• Check rpc.discover for the methods actually registered by the current host.

• Use a host build that registers the provider named in the message, then refresh MCP tools/list before retrying.

• Code: ARA1806

• Constant: SERVICE_UNAVAILABLE

• Reported by: ara-host