Struct PlanBudget 

pub struct PlanBudget {
    pub max_steps: Option<u32>,
    pub max_estimated_tokens: Option<u64>,
    pub max_estimated_cost_usd: Option<f64>,
    pub cost_per_token: f64,
}

Budget constraints that a serializable plan must satisfy before execution begins. Used in TaskAgentConfig::plan_budget.

Fields

max_steps: Option<u32>

Reject plans with more steps than this limit.

max_estimated_tokens: Option<u64>

Reject plans whose total estimated tokens exceed this ceiling.

max_estimated_cost_usd: Option<f64>

Reject plans whose estimated cost (USD) exceeds this ceiling.

cost_per_token: f64

Cost per token used for the USD estimate. Default: 0.000003 ($3/M).

Implementations

impl PlanBudget

pub fn new() -> Self

Create a new budget with no limits (accepts any plan).

pub fn with_max_steps(self, max: u32) -> Self

Set the maximum allowed step count.

pub fn with_max_tokens(self, max: u64) -> Self

Set the maximum allowed estimated token count.

pub fn with_max_cost_usd(self, max: f64) -> Self

Set the maximum allowed estimated cost in USD.

pub fn check(&self, plan: &SerializablePlan) -> Result<(), String>

Check a plan against this budget.

Returns Ok(()) when the plan is within budget, or Err(reason) with a human-readable explanation when any limit is exceeded.

Trait Implementations

impl Clone for PlanBudget

fn clone(&self) -> PlanBudget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlanBudget

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

Formats the value using the given formatter.

impl Default for PlanBudget

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PlanBudget

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PlanBudget

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

where __S: Serializer,

Serialize this value into the given Serde serializer.