class RubyLLM::MCP::Error

Raised when an MCP server answers with a JSON-RPC error, an unexpected HTTP status, or not at all.

begin
  github.search_issues(query: "flaky")
rescue RubyLLM::MCP::Error => e
  e.code  # => -32602
end

The JSON-RPC error code, or nil when the failure had none.

Additional information the server attached to the error, or nil.