/**
 * Presence blob: the per-machine payload published to
 * `refs/harnery/presence/<machine>` (ADR 0016). One blob describes every live
 * session on this machine; peers render it in their agents list / status box /
 * peer table, labeled by machine.
 */
import type { AgentActivity, TaskState } from "../agents/state/session-state.js";
import { type PresenceCodecDigest } from "./codec-digest.js";
export interface PresenceAgent {
    instance_id: string;
    name?: string;
    kind?: string;
    session_id?: string;
    platform?: string;
    task?: string;
    activity: AgentActivity;
    task_state: TaskState;
    task_state_reason?: string;
    files_touched?: string[];
    started_at?: string;
    last_heartbeat?: string;
    /** Strict content-free activity evidence for remote Codec panels. */
    codec?: PresenceCodecDigest;
}
export interface PresenceBlob {
    v: 1;
    machine: string;
    published_at: string;
    agents: PresenceAgent[];
}
export interface BuiltBlob {
    blob: PresenceBlob;
    /** Stable hash of the semantically-relevant projection — the change
     * detector that decides whether a publish is worth a push. */
    basisHash: string;
    json: string;
}
/**
 * Build this machine's presence blob from the authority-safe V3 projection.
 * Includes live sessions + subagents; excludes kind=transient stubs (they are
 * fold-artifacts of the local claim model, not sessions) and anything past the
 * freshness window.
 */
export declare function buildPresenceBlob(coordRoot: string, now?: Date): BuiltBlob;
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