Struct CostMetrics 

#[non_exhaustive]
pub struct CostMetrics {
    pub total_cost_usd: Option<f64>,
    pub total_duration_ms: Option<u64>,
    pub total_api_duration_ms: Option<u64>,
    pub total_lines_added: Option<u64>,
    pub total_lines_removed: Option<u64>,
}

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

total_cost_usd: Option<f64>

Per ADR-0014, leaves degrade independently. total_cost_usd: None means the leaf was missing, null, or wrong-typed; segments hide the affected metric and unrelated cost leaves still render.

total_duration_ms: Option<u64>

total_api_duration_ms: Option<u64>

total_lines_added: Option<u64>

Session lines added; u64 to match the JSON wire width and avoid silent truncation on sessions with very large aggregated counts.

total_lines_removed: Option<u64>

Trait Implementations

impl Clone for CostMetrics

fn clone(&self) -> CostMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CostMetrics

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

Formats the value using the given formatter.

impl Copy for CostMetrics