/**
 * `agentguard sample --flow <x402-payment|refund|agent-purchase>`
 *
 * Generates a realistic, REAL-signed sample receipt for the named flow and
 * writes a self-contained, self-verifying artifact:
 *   - receipt.json  the signed entry + public key + flow context
 *   - verify.html   a standalone page that re-checks the hash chain and (where
 *                   the browser supports WebCrypto Ed25519) the signature, fully
 *                   in-browser with NO network calls; otherwise it links to
 *                   agentguard.run/verify with the receipt prefilled.
 *
 * Purpose: hand a prospect "exactly what your counterparty would get."
 * Additive only — no existing behavior changes.
 */
import { type SampleFlow } from '../samples/flows';
export declare function runSample(argv: string[]): Promise<number>;
export interface SampleArtifact {
    receiptJson: {
        kind: 'agentguard-sample-receipt';
        flow: SampleFlow;
        version: string;
        entry: {
            sequence: number;
            decision: unknown;
            previousHash: string;
            entryHash: string;
            signature: string;
            signerFingerprint: string;
        };
        publicKeyHex: string;
        context: Record<string, unknown>;
    };
    html: string;
}
/**
 * Build the signed sample artifact for a flow. When `deterministic`, a fixed
 * seed is used so the entry is byte-reproducible (handy for tests). Otherwise a
 * fresh random keypair produces a genuinely unique signature per run.
 */
export declare function generateSampleArtifact(flow: SampleFlow, options?: {
    deterministic?: boolean;
}): Promise<SampleArtifact>;
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