Struct EnforceCtx 

pub struct EnforceCtx<'a> {

    pub ladder: &'a [String],
    pub gates: &'a [Box<dyn Gate>],
    pub health: &'a GateHealthRegistry,
    pub base_request: &'a ModelRequest,
    pub providers: &'a ProviderRegistry,
    pub auth: &'a Auth,
    pub prices: &'a PriceTable,
    pub budget_per_request_usd: Option<f64>,
    pub max_rungs: u32,
    pub speculation: u32,
    pub serve_threshold: Option<f64>,
    pub features: Features,
    pub tenant_id: String,
    pub session_id: String,
    pub prompt_hash: String,
    pub api: String,
    pub policy_id: String,
}

Everything the engine needs for one decision. Borrowed to avoid cloning the ladder/request per call; owned trace-context strings so the resulting Trace is self-contained.

Fields

ladder: &'a [String]

Model ladder, cheapest first, as provider/model strings.

gates: &'a [Box<dyn Gate>]

Gates run against each attempt’s output (already resolved).

health: &'a GateHealthRegistry

Per-gate error budgets: a gate over budget is skipped (auto-disabled) this request.

base_request: &'a ModelRequest

The base request; its model is overwritten per rung.

providers: &'a ProviderRegistry

Provider lookup.

auth: &'a Auth

BYOK credentials for this request.

prices: &'a PriceTable

Price table for cost + counterfactual math.

budget_per_request_usd: Option<f64>

Per-request USD cap (None = uncapped).

max_rungs: u32

Hard ceiling on rungs attempted this request.

speculation: u32

Prefetch depth: fire this many rungs ahead concurrently while gating in ladder order. 0 = serial (the default): one call at a time, byte-identical to the original engine.

serve_threshold: Option<f64>

Calibrated conformal serve threshold (SPEC §10.1): a rung serves iff its aggregate gate score is >= this value. None (the default) keeps the original rule — serve iff the aggregate gate verdict is Pass — byte-identical to the original engine.

features: Features

Feature vector routed on (recorded in the trace).

tenant_id: String

Tenant id.

session_id: String

Session id.

prompt_hash: String

Salted prompt hash (never the raw prompt).

api: String

Wire API label, e.g. "anthropic.messages".

policy_id: String

Policy identity, e.g. "static-ladder@v0".

Trait Implementations

impl<'a> Debug for EnforceCtx<'a>

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

Formats the value using the given formatter.