Struct ToolMetadata 

pub struct ToolMetadata {
    pub name: String,
    pub title: Option<String>,
    pub description: String,
    pub parameters: Value,
    pub output_schema: Option<Value>,
    pub method: String,
    pub path: String,
}

Internal metadata for tools generated from OpenAPI operations.

This struct contains all the information needed to execute HTTP requests and is used internally by the OpenAPI server. It includes fields that are not part of the MCP specification but are necessary for HTTP execution.

For MCP compliance, this struct is converted to rmcp::model::Tool using the From trait implementation, which only includes MCP-compliant fields.

Fields

name: String

Tool name - exposed to MCP clients

title: Option<String>

Tool title - human-readable display name exposed to MCP clients

description: String

Tool description - exposed to MCP clients

parameters: Value

Input parameters schema - exposed to MCP clients as inputSchema

output_schema: Option<Value>

Output schema - exposed to MCP clients as outputSchema

method: String

HTTP method (GET, POST, etc.) - internal only, not exposed to MCP

path: String

URL path for the API endpoint - internal only, not exposed to MCP

Implementations

impl ToolMetadata

pub fn is_parameter_required(&self, param_name: &str) -> bool

Check if a parameter is required according to the tool metadata

pub fn is_parameter_array_type(&self, param_name: &str) -> bool

Check if a parameter is an array type according to the tool metadata

pub fn has_parameter_default(&self, param_name: &str) -> bool

Check if a parameter has a default value according to the tool metadata

pub fn is_empty_array(value: &Value) -> bool

Check if a JSON value is an empty array

pub fn should_omit_empty_array_parameter( &self, param_name: &str, value: &Value, ) -> bool

Determine if an empty array parameter should be omitted from the HTTP request

Trait Implementations

impl Clone for ToolMetadata

fn clone(&self) -> ToolMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolMetadata

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

Formats the value using the given formatter.

impl From<&ToolMetadata> for Tool

Converts internal ToolMetadata to MCP-compliant Tool.

This implementation ensures that only MCP-compliant fields are exposed to clients. Internal fields like method and path are not included in the conversion.

fn from(metadata: &ToolMetadata) -> Self

Converts to this type from the input type.

impl Serialize for ToolMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.