import type { ChatMessage, CompletionResult, ProviderId, SuccessfulRequestSnapshot, ToolDefinition } from "../../types.js";
import type { OperationLedger } from "../../llm/operation-ledger.js";
import type { CompactionSummaryStage } from "../context-manager.js";
import { executeCompactionSummary } from "../compaction-executor.js";
export interface CompactionExecutionState {
    activeId?: string | undefined;
    activeLedger?: OperationLedger | undefined;
    replaySnapshot?: SuccessfulRequestSnapshot | undefined;
}
export interface CompactionSummarizerPorts {
    readonly provider: ProviderId;
    readonly model: string;
    readonly signal?: AbortSignal | undefined;
    readonly history: ChatMessage[];
    readonly state: CompactionExecutionState;
    readonly currentContextLimitTokens: () => number | undefined;
    readonly toolsForSourceMessages: () => ToolDefinition[] | undefined;
    readonly writeDelta: (id: string, text: string, replace?: boolean) => void;
    readonly onUsage?: ((completion: CompletionResult) => void) | undefined;
    readonly execute?: typeof executeCompactionSummary | undefined;
}
export declare const createCompactionSummarizer: (ports: CompactionSummarizerPorts) => (summaryPrompt: string, stage?: CompactionSummaryStage) => Promise<string>;