/**
 * Governance primitive: append-only conductor-claims store (WP-G1b).
 *
 * A claim event signals that an instance is asserting the conductor role for
 * a workspace; a release event cancels it. The store is a plain JSONL file at
 * `<root>/.h2a/governance/conductor-claims.jsonl`. The fold over events is
 * `activeConductorClaims`: an instance has an active claim iff its latest event
 * (by `at`) for (workspaceId, instance) is a `claim` (a `release` cancels it).
 *
 * This is additive/reversible — append-only, no deletion, no enforcement.
 */
export interface ConductorClaimEvent {
    readonly type: "claim" | "release";
    readonly workspaceId: string;
    readonly instance: string;
    /** ISO 8601 timestamp of the event. */
    readonly at: string;
}
/**
 * Append a conductor claim or release event to the JSONL store.
 * Creates the governance directory if it does not exist.
 */
export declare function appendConductorClaim(root: string, event: ConductorClaimEvent): void;
/**
 * Read all conductor claim/release events from the store.
 * Returns an empty array if the file does not exist. Skips malformed lines.
 */
export declare function listConductorClaims(root: string): ConductorClaimEvent[];
/**
 * Fold the claim/release log to find active claimants for a workspace.
 *
 * An instance has an **active** claim for `workspaceId` iff its latest event
 * (by `at`) for the pair `(workspaceId, instance)` is a `claim` (a subsequent
 * `release` cancels it).
 *
 * Returns active claimants sorted by their claim `at` ASCENDING (earliest
 * claimant first — the tiebreaker for the conductor election).
 */
export declare function activeConductorClaims(root: string, workspaceId: string): Array<{
    instance: string;
    at: string;
}>;
//# sourceMappingURL=claims.d.ts.map