Struct ToolCallRequest 

pub struct ToolCallRequest {
    pub name: String,
    pub arguments: Value,
    pub tool_call_id: Option<String>,
    pub progress_token: Option<Value>,
    pub call_key: Option<String>,
    pub schema_pin: Option<String>,
}

A tool invocation as carried on a route REQUEST frame.

Fields

name: String

The provider’s bare manifest tool name (no gateway prefix).

arguments: Value

The arguments exactly as the caller supplied them; consumers never translate them, and the provider’s manifest schema is what accepts or rejects their shape.

tool_call_id: Option<String>

The consumer’s own identifier for this call, minted by whatever dispatched it (a model runner’s WAL intent id, a gateway request id). Opaque to the daemon and to subc; unique per call on the consumer’s side, so a provider’s at-most-once fence can key on it directly instead of synthesizing an id from the call’s contents.

None is a statement about the PRODUCER, not the call: it means this consumer did not supply an id, never that the call has no identity. A reader must not collapse the two — the moment a legacy producer is on the other end, treating None as “no id exists” and synthesizing one silently reproduces exactly the failure this field exists to end. A reader that synthesizes a fallback id when this is None must record that the fallback fired (a fallback that never reports firing is indistinguishable from a working component that is quietly wrong).

progress_token: Option<Value>

An MCP progress token the consumer wants progress notifications correlated to, when the caller requested progress. Opaque here.

call_key: Option<String>

A key the consumer chose for this call, which a provider may use to recognise the same call arriving twice. Opaque to the daemon; a provider checks only its shape, with validate_call_key, and answers a malformed one with invalid_request naming the field CALL_KEY_FIELD.

This struct is deliberately not #[non_exhaustive]: a consumer that builds it field by field must decide what key, if any, to send, so a new field here is meant to stop its struct literal compiling.

schema_pin: Option<String>

Which version of the tool’s schema the consumer built its arguments against, so a provider can tell a call made against a schema it no longer serves. Opaque here: the tool-provider role defines what it holds. A provider checks only its shape, with validate_schema_pin, and answers a malformed one with invalid_request naming the field SCHEMA_PIN_FIELD.

Implementations

impl ToolCallRequest

pub fn new(name: impl Into<String>, arguments: Value) -> Self

A call with no consumer id, no progress token, no call key and no schema pin — the shape older two-field consumers send.

Trait Implementations

impl Clone for ToolCallRequest

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolCallRequest

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

Formats the value using the given formatter.

impl Default for ToolCallRequest

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ToolCallRequest

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ToolCallRequest

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ToolCallRequest

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 ToolCallRequest