Function HasValidSignature

internal/cache/signature_cache.go:281–283

HasValidSignature checks if a signature is valid (non-empty and long enough)

(modelName, signature string)

// HasValidSignature checks if a signature is valid (non-empty and long enough)
func HasValidSignature(modelName, signature string) bool {
	return (signature != "" && len(signature) >= MinValidSignatureLen) || (signature == "skip_thought_signature_validator" && GetModelGroup(modelName) == "gemini")
}

func GetModelGroup(modelName string) string {
	if strings.Contains(modelName, "gpt") {