Function isRequestInvalidError

sdk/cliproxy/auth/conductor.go:4040–4068

isRequestInvalidError returns true if the error represents a client request error that should not be retried. Specifically, it treats 400 responses with "invalid_request_error", request-scoped 404 item misses caused by `store=false`, and all 422 responses as request-shape failures, where switching a

(err error)

// pooled upstream models will not help. Model-support errors are excluded so
// routing can fall through to another auth or upstream.
func isRequestInvalidError(err error) bool {
	if err == nil {
		return false
	}
	if isCloudflareChallengeError(err) {
		return false
	}
	if isModelSupportError(err) {
		return false
	}
	status := statusCodeFromError(err)
	switch status {
	case http.StatusBadRequest:
		msg := err.Error()
		return strings.Contains(msg, "invalid_request_error") ||
			strings.Contains(msg, "INVALID_ARGUMENT") ||
			strings.Contains(msg, "FAILED_PRECONDITION")
	case http.StatusNotFound:
		return isRequestScopedNotFoundMessage(err.Error())
	case http.StatusUnprocessableEntity:
		return true
	case http.StatusInternalServerError:
		msg := err.Error()
		return strings.Contains(msg, "\"status\":\"UNKNOWN\"") ||
			strings.Contains(msg, "\"status\": \"UNKNOWN\"")
	default:
		return false
	}
}

func applyAuthFailureState(auth *Auth, resultErr *Error, retryAfter *time.Duration, now time.Time, disableCooling bool) {
	if auth == nil {