import type { HushProjectDiscoveryResult, HushProjectRuntimeAuthority, LegacyHushConfig } from '../types.js';
export declare function findConfigPath(root: string): string | null;
export declare function isV3RepositoryRoot(root: string): boolean;
export interface FindProjectRootOptions {
    /**
     * If true, only check `startDir` itself; do not walk upward into ancestor
     * directories. Used by `hush bootstrap --new-repo` to force creation of a
     * child-local repository even when a parent `.hush/` exists.
     */
    ignoreAncestors?: boolean;
    /**
     * If true, stop walking upward at git repository boundaries (i.e. the first
     * directory that contains its own `.git/`). Prevents nested git repos from
     * silently inheriting a parent's `.hush/` repository.
     */
    stopAtGitRoot?: boolean;
}
export declare function findProjectRoot(startDir: string, options?: FindProjectRootOptions): HushProjectDiscoveryResult | null;
export declare function loadProjectRuntimeAuthority(root: string, options?: {
    keyIdentity?: string;
}): HushProjectRuntimeAuthority;
export declare function loadConfig(root: string): LegacyHushConfig;
export declare function checkSchemaVersion(config: LegacyHushConfig): {
    needsMigration: boolean;
    from: number;
    to: number;
};
export declare function validateConfig(config: LegacyHushConfig): string[];
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