import type { GuardContext, GuardRunResult } from '../types.js';
/**
 * Behavioural probe of "a plan is produced before anything is written, so the
 * diff is reviewable".
 *
 * The previous version listed four hook/IDE files and passed if any of them
 * contained the word "hook", "install", "ide" or "adapter" — `hooks-commands.ts`
 * satisfies that from its own filename.
 *
 * Here `planHookInstall` runs against a fresh tmp project and the settings file
 * must NOT appear; `applyHookInstall` then writes it, and a second apply must
 * be a no-op that does not duplicate the entry.
 */
export declare function runJ10Contract(ctx: GuardContext): Promise<GuardRunResult>;