Rulvar API reference

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Rulvar API reference / @rulvar/evals / flipStaleOnCanaryDrift

Function: flipStaleOnCanaryDrift()

function flipStaleOnCanaryDrift(
   store, 
   model, 
   freshFingerprint, 
options?): Promise<CanaryDriftReport>;

Defined in: packages/evals/src/canary.ts:166

Flips the model's ACTIVE eval-measured claims to stale when their recorded canary fingerprint differs from the fresh one. Claims without a recorded fingerprint have no baseline and stay untouched (the documented no-probe posture); a second run is an idempotent noop. CAS-rebased like every maintenance commit; the retries run no engine work and pay nothing.

Only pass fingerprints from an allOk probe set (runCanary): a fingerprint containing a !status probe differs from any healthy baseline by construction, and flipping on it would blame the model for a budget ceiling or a transient provider failure.

Parameters

Parameter	Type
store	ModelKnowledgeStore
model	`${string}:${string}`
freshFingerprint	string
options?	{ attempts?: number; }
options.attempts?	number

Returns

Promise<CanaryDriftReport>