A client constructed without an elicitation_callback or
list_roots_callback still answers the server's request, via a default
callback that returns a JSON-RPC error. Both defaults used -32600
(invalid request). The spec assigns a specific code to each case:
- elicitation/create: -32602 (invalid params). A client with no
callback declares no elicitation modes, so every incoming request
names an undeclared mode, which clients MUST answer with -32602.
- roots/list: -32601 (method not found), the code clients SHOULD use
when they do not support roots.
The default sampling callback keeps -32600: the spec assigns no code
to a client that does not support sampling. Error messages are
unchanged.
Update the affected tests and the interaction-requirement entries that
recorded the old codes, fix the code named in the client callbacks doc
page, and add a migration note.
Max Isbey
884badc944