import type { AgentSessionInternalSurface as AgentSession, SessionCompactOptions, VerbatimCompactionApplyOptions } from "./agent-session-methods.ts";
import { type VerbatimCompactionResult } from "./compaction/index.ts";
import type { SessionCompactFailedEvent } from "./extensions/index.js";
export declare function _applyVerbatimCompaction(this: AgentSession, options: VerbatimCompactionApplyOptions): Promise<VerbatimCompactionResult | undefined>;
export declare function emitSessionCompactFailed(session: AgentSession, event: Omit<SessionCompactFailedEvent, "type">): Promise<void>;
/**
 * Persist one verbatim line-subset compaction boundary.
 *
 * Re-entrancy safe: a call made while a manual compaction is still in flight
 * joins that run instead of starting a second one. Manual compaction aborts an
 * active agent run before it starts, while agent event delivery remains live so
 * a pending threshold check cannot race the requested manual boundary.
 */
export declare function compact(this: AgentSession, options?: SessionCompactOptions): Promise<VerbatimCompactionResult>;
export declare function abortCompaction(this: AgentSession): void;
export declare function abortBranchSummary(this: AgentSession): void;
export declare function setAutoCompactionEnabled(this: AgentSession, enabled: boolean): void;
export declare const agentSessionCompactionMethods: {
    _applyVerbatimCompaction: typeof _applyVerbatimCompaction;
    compact: typeof compact;
    abortCompaction: typeof abortCompaction;
    abortBranchSummary: typeof abortBranchSummary;
    setAutoCompactionEnabled: typeof setAutoCompactionEnabled;
};
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