/**
 * The card checks itself, at the moment it is sent.
 *
 * Everything else that guards the template runs on examples: the tests on
 * fixtures, the catalogue build on twenty-one hand-written cards. A live
 * sender passes values none of them ever pass — an empty title, a status word
 * from a `--json` payload, a number with a plus sign built by hand — and the
 * card that reaches the owner is the one nobody looked at.
 *
 * So the finished HTML is read here, right before delivery, by the same rules
 * the page states. A card that breaks them is STILL SENT: a notification is
 * never worth losing, and a lint is not a reason to drop one. The breach is
 * reported separately, as its own red card to the system project of the
 * routes config, the way a lost project already is.
 */
/**
 * Reads a finished card and returns what is wrong with it, in the owner's
 * terms. An empty array means the card obeys the standard.
 */
export declare const lintCard: (html: string) => string[];