/**
 * Resolve the canonical `instance_id` for the current hook invocation.
 *
 * Precedence:
 *
 *   1. Hook payload fields. Current live V3 authority breaks ties: a live
 *      child wins when it belongs to the payload session, otherwise the live
 *      session/conversation wins over a stale adapter `agent_id`. With no live
 *      evidence, the legacy `agent_id` → `subagent_id` → `session_id` →
 *      `conversation_id` order remains the startup fallback.
 *   2. `HARNERY_AGENT_COORD_OWNER` outside bridge mode. Bridge-marked children
 *      ignore this unvalidated override.
 *   3. Adapter-exported session identity matched to one live V3 generation.
 *      This is the only payload-free identity accepted in bridge mode.
 *   4. PID-map lookup at `.harnery/pid-map/<pid>` for our own pid, then ppid
 *      chain (up to 20 hops).
 *
 * Bridge-marked children fail closed after tier 3. A connector crosses a
 * process-tree boundary, so pid ancestry and singleton state are not evidence
 * of its logical session.
 *
 * Returns null when nothing resolves. Callers must treat null as "no owner"
 * and skip the event (Phase 2 fail-safe; Phase 3 will mint a temporary owner
 * for orphan events).
 */
export declare function resolveOwner(opts: {
    payload: Record<string, unknown> | null;
    coordRoot: string;
}): {
    instance_id: string;
    source: "env" | "payload" | "session_env" | "pidmap-self" | "pidmap-ancestor";
} | null;
/**
 * Find the parent owner for a subagent invocation. The per-shell marker at
 * `.harnery/shells/<pid>` is set by `sub-agent-start` and removed by
 * `sub-agent-stop`.
 *
 * Phase 2 stub: the marker file isn't written yet, so we return null in most
 * cases. Phase 2 callers can pass through.
 */
export declare function readShellMarker(coordRoot: string, pid: number): string | null;
/** Read the V3-projected `agent_id` for an owner if it exists. */
export declare function readAgentIdForOwner(coordRoot: string, instanceId: string): string | null;
/** Diagnostic: list of pid-map entries (for debugging). */
export declare function listPidmap(coordRoot: string): Array<{
    pid: number;
    owner: string;
}>;
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