Freeze a label set
Freeze a golden set: seal its membership with a hash and measure inter-rater agreement (kappa) on its members — required before a judge can calibrate on it.
No body. Re-freezing an already-frozen set re-measures kappa/agreement/rater_count but keeps the original frozen_at and membership. kappa is null (and reported as null, never as good) when fewer than two raters’ blind re-grades exist inside the set. 400 if inter-rater stats are unavailable.
Authorizations
Your workspace API key, e.g. sk_sovereign_..., sent as Authorization: Bearer <key>.
Path Parameters
Identifier.
Response
200 with the updated set object: { id, name, description, size, membership_hash (sha256 of sorted member ids), frozen_at (ISO), kappa: number|null, agreement: number|null, kappa_n: integer|null, rater_count: integer, attached_to: [ { id, name } ], created_at }.
The response is of type object.