Struct TurnMetrics 

pub struct TurnMetrics {
    pub turn: u32,
    pub tools_exposed: usize,
    pub tools_called: usize,
    pub active_skill: Option<String>,
    pub input_tokens: u32,
    pub cache_read_tokens: u32,
    pub cache_creation_tokens: u32,
    pub cache_read_tokens_by_slot: Option<CacheReadBySlot>,
}

P0-C tool-gating telemetry: per-LLM-turn metrics, delivered to RuntimeOptions::on_turn_metrics. Pure observation — no behavior change. tools_exposed vs tools_called quantifies over-exposure; consecutive equal active_skill values measure skill dwell D; the cache split gives the prompt-cache hit baseline. Mirrors the node SDK TurnMetrics.

Fields

turn: u32

tools_exposed: usize

tools_called: usize

active_skill: Option<String>

input_tokens: u32

cache_read_tokens: u32

cache_creation_tokens: u32

cache_read_tokens_by_slot: Option<CacheReadBySlot>

I1: pro-rata per-slot attribution of cache_read_tokens (Anthropic only). Mirrors Node.

Trait Implementations

impl Clone for TurnMetrics

fn clone(&self) -> TurnMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TurnMetrics

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

Formats the value using the given formatter.