Function: isRetryableProviderFailure()

function isRetryableProviderFailure(err): boolean;

Defined in: packages/provider/src/errors/retryability.ts:66

Stable

Classify a thrown provider error as retryable (also fallback-eligible) or terminal.

Decision order:

Non-object throws are never retryable.
An aborted request is never retryable, even when it surfaces as a status: 0 network error. The retry loop also short-circuits on req.signal?.aborted, but the predicate must exclude abort independently so an internally-aborted call is not retried.
The canonical kind decides when recognised. ProviderHttpError.kind is always the stable 'provider-http' discriminant; the mapped canonical kind rides on errorKind - both are consulted. Transient kinds (transient, rate-limit, rate-limit-exceeded, capacity) are retryable; terminal kinds (unauthorized, invalid-request, context-length, content-filter) are not.
HTTP status fallback for errors without a recognised kind: 429 and 5xx retry; status: 0 is a fetch-level network failure (ECONNREFUSED, DNS, connection reset, request timeout) - exactly the transient class withRetry documents - and retries (abort already excluded above).

Parameters

Parameter	Type
`err`	`unknown`

boolean