Enum ServerResult 

pub enum ServerResult {
    InputRequiredResult(InputRequiredResult),
    DiscoverResult(DiscoverResult),
    ListResourcesResult(ListResourcesResult),
    ListResourceTemplatesResult(ListResourceTemplatesResult),
    ReadResourceResult(ReadResourceResult),
    SubscriptionsListenResult(SubscriptionsListenResult),
    ListPromptsResult(ListPromptsResult),
    GetPromptResult(GetPromptResult),
    ListToolsResult(ListToolsResult),
    CallToolResult(CallToolResult),
    CompleteResult(CompleteResult),
    Result(Result),
}

Latest MCP Protocol 2026_07_28 ServerResult

JSON schema

{
 "anyOf": [
   {
     "$ref": "#/$defs/Result"
   },
   {
     "$ref": "#/$defs/InputRequiredResult"
   },
   {
     "$ref": "#/$defs/DiscoverResult"
   },
   {
     "$ref": "#/$defs/ListResourcesResult"
   },
   {
     "$ref": "#/$defs/ListResourceTemplatesResult"
   },
   {
     "$ref": "#/$defs/ReadResourceResult"
   },
   {
     "$ref": "#/$defs/SubscriptionsListenResult"
   },
   {
     "$ref": "#/$defs/ListPromptsResult"
   },
   {
     "$ref": "#/$defs/GetPromptResult"
   },
   {
     "$ref": "#/$defs/ListToolsResult"
   },
   {
     "$ref": "#/$defs/CallToolResult"
   },
   {
     "$ref": "#/$defs/CompleteResult"
   }
 ]
}

Variants

InputRequiredResult(InputRequiredResult)

DiscoverResult(DiscoverResult)

ListResourcesResult(ListResourcesResult)

ListResourceTemplatesResult(ListResourceTemplatesResult)

ReadResourceResult(ReadResourceResult)

SubscriptionsListenResult(SubscriptionsListenResult)

ListPromptsResult(ListPromptsResult)

GetPromptResult(GetPromptResult)

ListToolsResult(ListToolsResult)

CallToolResult(CallToolResult)

CompleteResult(CompleteResult)

Result(Result)

Implementations

impl ServerResult

pub fn is_input_required(&self) -> bool

Returns true if this result is an InputRequiredResult, i.e. the server is requesting additional client input (sampling, roots, or elicitation) before it can complete the original request. This is the 2026-07-28 mid-request interaction mechanism.

pub fn is_complete(&self) -> bool

Returns true if this result is a final (complete) result rather than an InputRequiredResult. For results received from pre-2026 peers (which carry no resultType), this is always true.

pub fn as_input_required(&self) -> Option<&InputRequiredResult>

Returns the inner InputRequiredResult if this is an input-required response, otherwise None. Use this to drive the elicitation/retry loop.

Trait Implementations

impl Clone for ServerResult

fn clone(&self) -> ServerResult

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ServerResult

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ServerResult

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<CallToolResult> for ServerResult

fn from(value: CallToolResult) -> Self

Converts to this type from the input type.

impl From<CompleteResult> for ServerResult

fn from(value: CompleteResult) -> Self

Converts to this type from the input type.

impl From<DiscoverResult> for ServerResult

fn from(value: DiscoverResult) -> Self

Converts to this type from the input type.

impl From<GetPromptResult> for ServerResult

fn from(value: GetPromptResult) -> Self

Converts to this type from the input type.

impl From<InputRequiredResult> for ServerResult

fn from(value: InputRequiredResult) -> Self

Converts to this type from the input type.

impl From<ListPromptsResult> for ServerResult

fn from(value: ListPromptsResult) -> Self

Converts to this type from the input type.

impl From<ListResourceTemplatesResult> for ServerResult

fn from(value: ListResourceTemplatesResult) -> Self

Converts to this type from the input type.

impl From<ListResourcesResult> for ServerResult

fn from(value: ListResourcesResult) -> Self

Converts to this type from the input type.

impl From<ListToolsResult> for ServerResult

fn from(value: ListToolsResult) -> Self

Converts to this type from the input type.

impl From<ReadResourceResult> for ServerResult

fn from(value: ReadResourceResult) -> Self

Converts to this type from the input type.

impl From<Result> for ServerResult

fn from(value: Result) -> Self

Converts to this type from the input type.

impl From<ServerResult> for MessageFromServer

fn from(value: ServerResult) -> Self

Converts to this type from the input type.

impl From<SubscriptionsListenResult> for ServerResult

fn from(value: SubscriptionsListenResult) -> Self

Converts to this type from the input type.

impl Serialize for ServerResult

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<ServerResult> for GenericResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for InputRequiredResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for DiscoverResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for ListResourcesResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for ListResourceTemplatesResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for ReadResourceResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for SubscriptionsListenResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for ListPromptsResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for GetPromptResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for ListToolsResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for CallToolResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<ServerResult> for CompleteResult

type Error = RpcError

The type returned in the event of a conversion error.

fn try_from(value: ServerResult) -> Result<Self, Self::Error>

Performs the conversion.