Struct InputRequiredResult 

pub struct InputRequiredResult {
    pub input_requests: Option<InputRequests>,
    pub meta: Option<ResultMetaObject>,
    pub request_state: Option<String>,
    pub result_type: String,
}

Latest MCP Protocol 2026_07_28 An InputRequiredResult sent by the server to indicate that additional input is needed before the request can be completed. At least one of inputRequests or requestState MUST be present.

JSON schema

{
 "description": "An InputRequiredResult sent by the server to indicate that additional input is needed\nbefore the request can be completed.\n\nAt least one of inputRequests or requestState MUST be present.",
 "type": "object",
 "required": [
   "resultType"
 ],
 "properties": {
   "_meta": {
     "$ref": "#/$defs/ResultMetaObject"
   },
   "inputRequests": {
     "$ref": "#/$defs/InputRequests"
   },
   "requestState": {
     "type": "string"
   },
   "resultType": {
     "description": "Indicates the type of the result, which allows the client to determine\nhow to parse the result object.\n\nServers implementing this protocol version MUST include this field.\nFor backward compatibility, when a client receives a result from a\nserver implementing an earlier protocol version (which does not include\nresultType), the client MUST treat the absent field as \"complete\".",
     "type": "string"
   }
 }
}

Fields

input_requests: Option<InputRequests>

meta: Option<ResultMetaObject>

request_state: Option<String>

result_type: String

Indicates the type of the result, which allows the client to determine how to parse the result object. Servers implementing this protocol version MUST include this field. For backward compatibility, when a client receives a result from a server implementing an earlier protocol version (which does not include resultType), the client MUST treat the absent field as “complete”.

Implementations

impl InputRequiredResult

pub fn with_request_state<T: Into<String>>(self, request_state: T) -> Self

Sets the opaque requestState returned by the server, so it can correlate the retry with the original request.

pub fn with_input_requests(self, input_requests: InputRequests) -> Self

Sets the inputRequests the server asks the client to resolve before the original request can complete.

Trait Implementations

impl Clone for InputRequiredResult

fn clone(&self) -> InputRequiredResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InputRequiredResult

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for InputRequiredResult

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<InputRequiredResult> for CallToolResultResponseResult

fn from(value: InputRequiredResult) -> Self

Converts to this type from the input type.

impl From<InputRequiredResult> for GetPromptResultResponseResult

fn from(value: InputRequiredResult) -> Self

Converts to this type from the input type.

impl From<InputRequiredResult> for ReadResourceResultResponseResult

fn from(value: InputRequiredResult) -> 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<InputRequiredResult> for GenericResult

fn from(value: InputRequiredResult) -> Self

Converts to this type from the input type.

impl From<InputRequiredResult> for MessageFromServer

fn from(value: InputRequiredResult) -> Self

Converts to this type from the input type.

impl Serialize for InputRequiredResult

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 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.