/**
 * SignalSink — the decoupling seam for cloud signal egress (ADR-0008).
 *
 * A Strategy: callers depend on this interface, never on a concrete cloud
 * client. The default is the Null-Object `noopSignalSink` (OSS / embedded /
 * not-entitled → nothing happens). The OpenSIP Cloud implementation lives in
 * @opensip-tools/output and depends *up* on core — core never imports it,
 * keeping the kernel free of network concerns.
 *
 * Non-blocking invariant: `emit` MUST NOT throw and MUST NOT affect the run's
 * exit code. A failing sink returns `{ accepted: 0, … }`. `authRejected` is the
 * single piece of feedback a caller acts on — the CLI invalidates the cached
 * entitlement on a 401/403 so a lapsed plan stops syncing within one run rather
 * than one cache-TTL.
 */
import type { SignalBatch } from '../types/signal-batch.js';
/** Outcome of an emit. `accepted` drives the "Sent N signals" message. */
export interface EmitResult {
    /** Signals the server acknowledged. */
    readonly accepted: number;
    /** Server rejected auth (401/403) — caller busts the entitlement cache. */
    readonly authRejected: boolean;
}
/** A best-effort destination for a run's signals. Implementations MUST NOT throw. */
export interface SignalSink {
    emit(batch: SignalBatch): Promise<EmitResult>;
}
/** The default sink: does nothing, accepts nothing. Used whenever cloud sync is off. */
export declare const noopSignalSink: SignalSink;
//# sourceMappingURL=signal-sink.d.ts.map