`op: unlock`

Release a concurrency lock acquired with lock.

Allowed phases

Phase	Status
`preflight`	✗ forbidden
`core`	✓ allowed
`side_effects`	✓ allowed

Syntax

- op: unlock
  key: item.sku

Parameters

Field	Required	Description
`key`	yes	Same key passed to `lock`

Behavior

Always pair with a preceding lock in the same rule scope.

See also

Operations index — all ops by phase
actions — rule structure and phases
Intents: Rules — narrative examples