Struct CostGuardrails 

pub struct CostGuardrails {
    pub warn_usd: Option<f64>,
    pub hard_limit_usd: Option<f64>,
}

Spending caps applied to the agentic loop.

Both fields are None by default — i.e. no limits. Once warn_usd is reached the agent emits a one-shot tracing::warn!. Once hard_limit_usd is reached the agent refuses further provider requests and returns an error.

Fields

warn_usd: Option<f64>

Warn once when cumulative session cost exceeds this USD threshold.

hard_limit_usd: Option<f64>

Hard-stop: refuse new provider requests above this USD threshold.

Implementations

impl CostGuardrails

pub fn with_env_overrides(self) -> Self

Overlay environment-variable overrides on top of a base config.

pub fn from_env() -> Self

Load guardrails using env-only (no config file). Used from code paths that don’t have a loaded crate::config::Config on hand.

Trait Implementations

impl Clone for CostGuardrails

fn clone(&self) -> CostGuardrails

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CostGuardrails

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

Formats the value using the given formatter.

impl Default for CostGuardrails

fn default() -> CostGuardrails

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CostGuardrails

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CostGuardrails

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.