There are two issues with too/list and prompt/list at the moment. We
serialize params to `null`, which is not correct according to
context_server spec. While it IS allowed by JSON RPC spec to omit
params, it turns out some servers currently missbehave and don't respect
this. So we do two things
- We omit params if it would be a null value in json.
- We explicitly set params to {} for tool/list and prompt/list to avoid
it being omitted.
Release Notes:
- N/A
30a94fa59b