Pointer to anonymous structure [refactor?]

[rm-hull]

Looking at https://github.com/mark3labs/mcp-go/blob/main/mcp/types.go#L647, it looks as though Annotations is a pointer to an anonymous structure, and the only way I can create that is with this, which is slightly awkward:

textContent := TextContent{
    Type: "text",
    Text: "Hello, world!",
    Annotated: Annotated{
        Annotations: &struct {
            Audience []Role   `json:"audience,omitempty"`
            Priority float64  `json:"priority,omitempty"`
        }{
            Audience: []Role{"user"},
        },
    },
}

I wonder if the Annotations can be pulled out into its own type:

type Annotations struct {
    // Describes who the intended customer of this object or data is.
    // ...
    Audience []Role   `json:"audience,omitempty"`
    // Describes how important this data is for operating the server.
    // ...
    Priority float64  `json:"priority,omitempty"`
}

// Refactor Annotated to use the named struct

// Annotated is the base for objects that include optional annotations for the
// client. The client can use annotations to inform how objects are used or
// displayed
type Annotated struct {
    Annotations *Annotations `json:"annotations,omitempty"`
}

Happy to provide a PR with this change, if folks think it's worth it ?

[rm-hull]

I think it might make the implementation of WithTemplateAnnotations marginally simpler with less duplication too: https://github.com/mark3labs/mcp-go/blob/013c0472999e4cf5092a5c59966e081c0f8a9ea3/mcp/resources.go#L94

[leavez]

I prefer a type compared to introducing a new function