import { type KeyObject } from "node:crypto";
import type { ApprovalEnvelopeV6, CapabilityDescriptorV6, ConnectorHandle, SafeVerdict, TaskSession, ToolCallbackVerificationRequest, ToolOnboardingSessionV6, VerifiedRegistryEntry } from "./types.js";
export declare function createApprovalIntentPayloadV6(input: {
    sessionId: string;
    workflowHash: string;
    capabilityId: string;
    capabilityDigest: string;
    expiresInSeconds?: number;
}): string;
export declare function verifyApprovalIntentSignatureV6(payload: string, brokerSignature: string, brokerPublicKey: KeyObject | undefined): boolean;
export declare function issueApprovalEnvelopeV6(input: {
    session: TaskSession | undefined;
    capability: CapabilityDescriptorV6 | undefined;
    brokerSignature: string;
    brokerSignatureVerified: boolean;
    expiresInSeconds?: number;
}): {
    verdict: SafeVerdict;
    approvalEnvelope?: ApprovalEnvelopeV6;
};
export declare function prepareToolOnboardingV6(input: {
    session: TaskSession | undefined;
    capability: CapabilityDescriptorV6 | undefined;
    approvalEnvelope: ApprovalEnvelopeV6 | undefined;
    verifiedRegistryEntry: VerifiedRegistryEntry | undefined;
}): {
    verdict: SafeVerdict;
    onboardingSession?: ToolOnboardingSessionV6;
};
export declare function verifyToolCallbackV6(input: {
    session: TaskSession | undefined;
    capability: CapabilityDescriptorV6 | undefined;
    approvalEnvelope: ApprovalEnvelopeV6 | undefined;
    onboardingSession: ToolOnboardingSessionV6 | undefined;
    verifiedRegistryEntry: VerifiedRegistryEntry | undefined;
    request: ToolCallbackVerificationRequest;
}): {
    verdict: SafeVerdict;
    connectorHandle?: ConnectorHandle;
};
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