import type { AttributionSummary, CausalEvent, RepoConcurrencyAuthority, RepoConcurrencyPosture } from "../contracts/causal-ontology.js";
export interface RepoConcurrencyTouch {
    readonly contributorKey: string;
    readonly path: string;
}
export interface RepoConcurrencyWorktreeHistory {
    readonly worktreeId: string;
    readonly active: boolean;
    readonly checkoutEpochId: string | null;
    readonly causalSessionIds: readonly string[];
    readonly actorIds: readonly string[];
    readonly contributorKeys: readonly string[];
    readonly explicitHandoff: boolean;
    readonly touches: readonly RepoConcurrencyTouch[];
}
export interface RepoConcurrencySummary {
    readonly posture: RepoConcurrencyPosture;
    readonly authority: RepoConcurrencyAuthority;
    readonly observedWorktreeCount: number;
    readonly observedCausalSessionCount: number;
    readonly observedActorCount: number;
    readonly overlappingPathCount: number;
    readonly summary: string;
    readonly daemonSessionLiveness?: RepoConcurrencyDaemonSessionLiveness;
}
export interface RepoConcurrencyDaemonSessionLiveness {
    readonly idleTimeoutMs: number;
    readonly liveSessionCount: number;
    readonly staleSessionCount: number;
}
interface RepoConcurrencyInput {
    readonly currentWorktreeId: string;
    readonly histories: readonly RepoConcurrencyWorktreeHistory[];
}
export interface RepoConcurrencyLiveSession {
    readonly bindState: "bound" | "unbound";
    readonly repoId: string | null;
    readonly worktreeId: string | null;
    readonly causalSessionId: string | null;
    readonly checkoutEpochId: string | null;
    readonly lastActivityAt: string;
}
export declare const DEFAULT_DAEMON_SESSION_IDLE_TIMEOUT_MS: number;
export declare function deriveRepoConcurrencySummary(input: RepoConcurrencyInput): RepoConcurrencySummary;
export declare function mergeRepoConcurrencySummaryWithLiveSessions(input: {
    readonly currentSummary: RepoConcurrencySummary;
    readonly currentRepoId: string;
    readonly currentWorktreeId: string;
    readonly currentCheckoutEpochId: string | null;
    readonly sessions: readonly RepoConcurrencyLiveSession[];
    readonly nowMs?: number;
    readonly sessionIdleTimeoutMs?: number;
}): RepoConcurrencySummary;
export declare function buildRepoConcurrencyContributorKey(input: {
    readonly actorId: string | null;
    readonly attribution: AttributionSummary;
    readonly causalSessionId: string | null;
    readonly transportSessionId: string | null;
}): string | null;
export declare function buildRepoConcurrencyTouches(events: readonly CausalEvent[]): RepoConcurrencyTouch[];
export {};
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