/**
 * no-root-pollution enforcer — PreToolUse Write/Edit guard.
 *
 * Per L2 redesign §5.4. Deny writes to <project>/root for files NOT in
 * the documented allowlist. The allowlist is hand-maintained for v1; a
 * follow-up slice can expose it via `peaks standards`.
 *
 * Trust red line: this hook MUST fail-open on registry / FS errors. The
 * LLM is never bricked by a peaks bug.
 */
export interface RootWriteCheckInput {
    readonly projectRoot: string;
    readonly filePath: string;
}
export interface RootWriteCheckResult {
    readonly isRoot: boolean;
    readonly allowed: boolean;
    readonly topSegment: string;
    readonly denyReason: string;
}
export declare function isRootWrite(input: RootWriteCheckInput): RootWriteCheckResult;