Struct Metrics

pub struct Metrics { /* private fields */ }

Standard metrics for agentguard.

Implementations

impl Metrics

pub fn new() -> Self

Build a new metrics registry. Returns Self; wrap with Arc::new(Metrics::new()) at the call site if shared ownership is needed.

pub fn with_cap(cardinality_cap: usize) -> Self

Construct a registry with a custom cardinality cap. Used in tests that want to verify the cap is enforced.

pub fn cardinality_cap(&self) -> usize

pub fn record_decision( &self, effect: &str, policy_id: &str, action: &str, tenant_id: &str, duration: Duration, )

pub fn record_delegation_mint(&self)

pub fn record_delegation_verify(&self, success: bool)

pub fn record_cache_hit(&self)

pub fn record_cache_miss(&self)

pub fn record_policy_reload(&self)

pub fn record_pdp_error(&self, fallback: &str)

pub fn render_prometheus(&self) -> String

Render a snapshot of all counters in Prometheus text format.

Uses std::fmt::Write to write directly into the output String, avoiding the dozens of format! temporaries the previous implementation allocated.

pub fn snapshot(&self) -> MetricsSnapshot

Build a snapshot of all counters for programmatic access.

Trait Implementations

impl Default for Metrics

fn default() -> Self

Returns the “default value” for a type.