/**
 * PreToolUse advisory policy (#3497).
 *
 * Workflow/planning hard gates are deleted. PreToolUse may only:
 * 1. Emit advisory systemMessage / additionalContext guidance, or
 * 2. Deny for authority-decreasing cancel interception (exact-session cancel).
 */
/**
 * Convert any PreToolUse deny/block into advisory output, except cancel
 * interception which remains deny so the external cancel command is not double-run.
 */
export declare function toAdvisoryOrCancelPreToolUseOutput(output: Record<string, unknown> | null): Record<string, unknown> | null;
/**
 * Sanitize native hook output so PreToolUse never hard-locks ordinary work.
 */
export declare function sanitizeNativeHookOutput(hookEventName: string | null, output: Record<string, unknown> | null): Record<string, unknown> | null;
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