Struct ToolCallStart 

pub struct ToolCallStart {
    pub component_ref: String,
    pub digest: String,
    pub tool: String,
    pub args_sha256: String,
    pub args_json: Option<String>,
    pub session_id: Option<String>,
    pub transport: Transport,
    pub agent_id: Option<String>,
    pub request_id: String,
    pub traceparent: Option<String>,
    pub tracestate: Option<String>,
}

The fields known when a tool call begins. Outcome and duration are recorded onto the span when it finishes.

Fields

component_ref: String

digest: String

tool: String

args_sha256: String

args_json: Option<String>

Full arguments rendered as JSON, present only when --audit-args is set. None by default, in which case only args_sha256 is emitted — this is the field that keeps the default path a digest, never values.

session_id: Option<String>

transport: Transport

agent_id: Option<String>

std:agent-id — informational caller identity, never a principal.

request_id: String

std:request-id, or a host-generated id. Always present, so an operator can always join one audit line to one client log line.

traceparent: Option<String>

std:traceparent (W3C Trace Context) as received.

tracestate: Option<String>

std:tracestate as received.

Trait Implementations

impl Clone for ToolCallStart

fn clone(&self) -> ToolCallStart

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolCallStart

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

Formats the value using the given formatter.