X_JOB_DECLARATION_INVALID

the job declaration is missing or mis-declares a field

job() was called without one or more required fields (input, idempotencyKey, tenant, retry, run) — reachable from generated code and JS callers the type cannot guard — or declares a concurrency no worker can honour: a cap of 0, negative, fractional, NaN or Infinity (plain number or limit), a key that is not a function, a whenBusy other than 'wait' or 'fail'. Also raised at ENQUEUE when concurrency.key(input) answers an empty string, a non-string or more than 200 characters — an empty key is one lock shared by every run. Every missing field is named in one refusal at declaration

retry: { attempts: 5, backoff: 'exponential' } on job('<name>') — the cause lists every missing field, each with its own edit; for a cap, concurrency: { key, limit: 1 } — a whole limit of 1 or more