Tag 6: the client asks what the agent value may be; the server opens the proxy’s /agent/schema and relays exactly one channel response, the JSON Schema or an error, and the channel response finish.
The client opens this channel to learn the schema of the agent value
the container was made with. The server opens
/agent/schema on the proxy and relays its
answer.
The request. The tag byte 6 and nothing more.
Request states its form.
The response. Exactly one channel response, the schema or an
error, and the channel response finish.
Response states the
sequence.