/**
 * checkin/state-reader.ts
 *
 * Binds a CheckinStateReader to the live runtime through narrow, structural
 * views of sessions and automation runs, narrow enough that a SharedSessionRecord
 * and an AutomationRun satisfy them directly, and that a test can hand-roll them
 * without the real services.
 */
import type { CheckinStateReader } from './types.js';
export interface CheckinSessionView {
    readonly status: string;
    readonly activeAgentId?: string | undefined;
    readonly pendingInputCount: number;
    readonly title: string;
    readonly surfaceKinds: readonly string[];
}
export interface CheckinRunView {
    readonly status: string;
    readonly endedAt?: number | undefined;
}
export interface CheckinRuntimeReaders {
    listSessions(): readonly CheckinSessionView[];
    listRuns(): readonly CheckinRunView[];
    now?(): number;
}
/** Build the live state reader. Deterministic given its injected views. */
export declare function createRuntimeCheckinStateReader(readers: CheckinRuntimeReaders): CheckinStateReader;
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