errors

var (
	ErrCacheMiss     = errors.New("cache miss")
	ErrNotFound      = errors.New("not found")
	ErrInvalidInput  = errors.New("invalid input")
	ErrUnauthorized  = errors.New("unauthorized")
	ErrRateLimited   = errors.New("rate limited")
	ErrProviderDown  = errors.New("provider unavailable")
	ErrContextBudget = errors.New("context budget exceeded")
	ErrSyntax        = errors.New("syntax error")
	ErrParse         = errors.New("parse error")
)