Module decision 

Bounded, caller-clocked primitives for decisions with delayed feedback.

The ledger intentionally knows nothing about product actions or reward meaning. Callers provide identifiers, timestamps, generations, contexts, and actions. Pending decisions are never evicted implicitly.

Structs

CompletedDecision

Completed decision retained as a bounded replay tombstone.

DecisionId

Opaque, caller-assigned decision identifier.

DecisionLedger

Bounded pending decisions plus bounded completed tombstones.

DecisionLedgerConfig

Capacity limits for a DecisionLedger.

DecisionOutcome

Delayed outcome submitted by a caller.

DecisionReceipt

Result of registering a decision.

PendingDecision

Immutable facts recorded at decision time.

Enums

DecisionLedgerError

Validation and capacity failures. Every failure leaves the ledger intact.

FeedbackStatus

Result of accepted feedback.

RegistrationStatus

Registration/idempotency status.

Constants

DECISION_LEDGER_STATE_VERSION

Version of the serialized ledger state introduced with the Preview API.

DEFAULT_MAX_ACTION_BYTES

Default maximum serialized-equivalent action size per decision.

DEFAULT_MAX_CONTEXT_BYTES

Default maximum serialized-equivalent context size per decision.

Traits

BoundedDecisionValue

Caller-extensible validation hook that makes per-decision memory bounded.

Functions

apply_contextual_outcomebandit

Atomically apply a validated outcome to both a ledger and LinUCB model.

Type Aliases

DelayedContextualDecisionbandit

LinUCB-oriented decision facts; the generic ledger remains algorithm-free.