Struct Definition 

pub struct Definition {
    pub name: String,
    pub description: String,
    pub input_schema: ToolSchema,
    pub output_schema: Option<ToolSchema>,
    pub annotations: Annotations,
    pub envelope: Envelope,
}

Describes a tool — MCP-aligned metadata.

Fields

name: String

Unique tool identifier.

description: String

Human-readable description.

input_schema: ToolSchema

JSON Schema for the tool’s input parameters.

output_schema: Option<ToolSchema>

Optional JSON Schema for the tool’s output.

annotations: Annotations

Behavioral hints that are orthogonal to the executable permission envelope.

envelope: Envelope

Executable permission envelope — the single source of truth for what the tool may do at runtime. It carries scopes, network/filesystem/ subprocess rules, safety classification, sensitive-invocation predicates, and data-classification hints. Defaults deny network, filesystem, and subprocess access.

Trait Implementations

impl Clone for Definition

fn clone(&self) -> Definition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Definition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Definition

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Definition

fn eq(&self, other: &Definition) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Definition

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Definition