OptionalannotationsOptional annotations that help clients decide how to display or route this content.
OptionaldescriptionOptional human-readable details shown with this protocol object.
OptionalmimeMIME type describing the encoded media payload.
Human-readable name shown for this protocol object.
OptionalsizeOptional size of the linked resource in bytes, if known.
OptionaltitleOptional display title for end-user UI.
URI associated with this resource or media payload.
Optional_The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. Implementations MUST NOT make assumptions about values at these keys.
See protocol docs: Extensibility
A resource that the server is capable of reading, included in a prompt or tool call result.