import type { ApprovalRequestCategory, ApprovalRequestDetail, ApprovalRequestMetadata, ApprovalNativeRequestMetadata, ApprovalRisk, ApprovalReplyMetadata, SessionRule } from './approval-types.js';
import type { CanonUnifiedDiff } from './types.js';
export declare function generateApprovalId(): string;
export declare function redactSecrets(text: string, patterns: string[]): string;
export declare function buildApprovalRequest(approvalId: string, toolName: string, toolInput: Record<string, unknown>, opts: {
    riskLevel?: 'normal' | 'destructive';
    risk?: ApprovalRisk;
    category?: ApprovalRequestCategory;
    responseUserId?: string;
    runtimeId?: string;
    turnId?: string;
    native?: ApprovalNativeRequestMetadata;
    toolSummary?: string;
    details?: ApprovalRequestDetail[];
    diff?: CanonUnifiedDiff;
    expiresAt: string;
    redactPatterns?: string[];
}): {
    text: string;
    metadata: ApprovalRequestMetadata;
};
export declare function buildApprovalReply(approvalId: string, decision: 'allow' | 'deny', sessionRule?: SessionRule): {
    text: string;
    metadata: ApprovalReplyMetadata;
};
export declare function buildApprovalOutcome(approvalId: string, toolName: string, toolSummary: string, decision: 'allow' | 'deny', reason: 'replied' | 'timeout' | 'session-rule'): string;