checkworker

var (
	ErrUnknownCheckType   = errors.New("unknown check type")
	ErrCheckerNotFound    = errors.New("checker not found for type")
	ErrFailedToParseConf  = errors.New("failed to parse config")
	ErrFailedToFetchCheck = errors.New("failed to fetch check from database")
	ErrNoCheckType        = errors.New("check job has no type set")
	// ErrDockerNotAvailableInSaaS is returned when a docker job reaches a SaaS
	// shared worker (spec 2026-09-25-22). The create/update gate
	// (checks.Service.validateDockerDeploymentConfig) is meant to keep such a
	// job from ever being scheduled, but a check created before that gate
	// shipped, or one whose placement moved off a private region since, must
	// still be refused here — without ever dialing the socket. Same message
	// as the create-time gate, so the two read as one rule from either side.
	ErrDockerNotAvailableInSaaS = errors.New("docker checks are not available on this deployment")

	// ErrCheckerPanic wraps a recovered panic from inside a checker's
	// Execute call (spec 2026-07-05-05 D2). The runner survives; the panic
	// is converted into a StatusError result instead of crashing the
	// process.
	ErrCheckerPanic = errors.New("checker panicked")

	// ErrCheckerAbandoned marks a checker execution the watchdog gave up
	// on because the checker never observed its context deadline within
	// execTimeout + abandonGrace (spec 2026-07-05-05 D1).
	ErrCheckerAbandoned = errors.New("check execution abandoned: checker did not honor its context")
)

var (
	// ErrStepNotSupported means this worker's backend cannot persist step
	// state (an agent): multi-step checks run on the server's workers only.
	ErrStepNotSupported = errors.New("multi-step checks are not supported on this worker")
	// ErrStepFailedTooOften ends a run after maxStepFailures failed slices.
	ErrStepFailedTooOften = errors.New("multi-step run failed 3 slices in a row")
)