ConstReadonlyBASIC: "BASIC"Envelope only: identifiers, ownership, timestamps, plus the persisted
config scalars (include_tool_selectors, rate_limits without
principal); config.source_connection is unset.
ReadonlyFULL: "FULL"All fields populated, including the fully resolved config
(connection details) and rate-limit principal names.
ReadonlyVIEW_UNSPECIFIED: ""Server treats as BASIC.
Controls which fields are populated on each McpService in the response. The server treats unset / VIEW_UNSPECIFIED as BASIC. Callers needing the full configuration must request it explicitly with
view = FULL.