export type RiskClass = "read-only" | "ordinary-reversible" | "human-required" | "protected";
export type ApprovalState = "Approved" | "ReviewPending" | "NeedsHuman";
export declare const APPROVAL_ACTION_KINDS: readonly ["read", "write", "adopt", "rebind", "recover", "rollback", "migration", "weakening", "permission-change", "protected"];
export type ApprovalActionKind = typeof APPROVAL_ACTION_KINDS[number];
export interface SemanticApprovalBinding {
    planHash: string;
    contextDigest: string;
    inputDigest: string;
    policyDigest: string;
    observedHash: string;
    actionDigest: string;
}
export interface SemanticApprovalPacket {
    schemaVersion: "semantic-approval/1.0";
    kind: "semantic-approval";
    planHash: string;
    inputHash: string;
    binding: SemanticApprovalBinding;
    producerIdentity: string;
    actions: Array<{
        id: string;
        kind: ApprovalActionKind;
        summary: string;
        before: string;
        after: string;
        reversible: boolean;
        protected?: boolean;
        recovery: string;
    }>;
    risk: RiskClass;
    packetHash: string;
}
export interface ReviewerVerdict {
    schemaVersion: "reviewer-verdict/1.0";
    packetHash: string;
    planHash: string;
    inputHash: string;
    reviewerIdentity: string;
    verdict: "approve" | "reject" | "needs-human";
    reasonCodes: string[];
}
export interface ReviewerAdapter {
    identity: string;
    review(packet: SemanticApprovalPacket, attempt: 1 | 2): ReviewerVerdict;
}
export interface ApprovalResult {
    state: ApprovalState;
    code?: "DG02_REVIEWER_CONFIGURATION_REQUIRED" | "REVIEWER_SELF_REVIEW" | "REVIEWER_INVALID" | "REVIEWER_REJECTED" | "REVIEWER_ATTEMPT_LIMIT" | "HUMAN_APPROVAL_REQUIRED";
    packet: SemanticApprovalPacket;
    verdict?: ReviewerVerdict;
}
export declare function validSemanticApprovalPacket(packet: SemanticApprovalPacket): boolean;
export declare function classifyRisk(actions: SemanticApprovalPacket["actions"]): RiskClass;
export declare function createSemanticApprovalPacket(input: Omit<SemanticApprovalPacket, "schemaVersion" | "kind" | "risk" | "packetHash" | "binding"> & {
    binding: Omit<SemanticApprovalBinding, "actionDigest">;
}): SemanticApprovalPacket;
export declare function reviewSemanticApproval(args: {
    packet: SemanticApprovalPacket;
    adapter?: ReviewerAdapter;
    attempt?: 1 | 2 | 3;
}): ApprovalResult;
/** The mutation caller derives attempts from append-only history; callers cannot reset it. */
export declare function reviewSemanticApprovalWithHistory(args: {
    commonDir: string;
    packet: SemanticApprovalPacket;
    adapter?: ReviewerAdapter;
}): ApprovalResult;
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