import type { ExtensionAPI, ExtensionContext, SessionBeforeCompactEvent, SessionEntry } from "@earendil-works/pi-coding-agent";
import { type Api, type Model } from "@earendil-works/pi-ai";
import { type LatestNativeCompactionResolution } from "./details-store.ts";
import { type ResponsesInputItem, type SerializeResponsesMessagesOptions } from "./serializer.ts";
import type { AdapterState } from "../activation/state.ts";
export declare function buildNativeCompactionInput(args: {
    model: Model<Api>;
    branchEntries: SessionEntry[];
    allEntries: SessionEntry[];
    leafId?: string | null | undefined;
    latestNativeCompaction: LatestNativeCompactionResolution;
    serializationOptions?: SerializeResponsesMessagesOptions | undefined;
}): {
    input: ResponsesInputItem[];
    compactedKeptWindow: boolean;
} | undefined;
export declare function handleCodexSessionBeforeCompact(event: SessionBeforeCompactEvent, ctx: ExtensionContext, state: AdapterState, pi: ExtensionAPI): Promise<{
    cancel: boolean;
    compaction?: never;
} | {
    cancel?: never;
    compaction: import("@earendil-works/pi-coding-agent").CompactionResult<import("../compaction/types.ts").NativeCompactionDetails>;
} | undefined>;
export declare function rewriteCodexCompactedProviderRequest(payload: unknown, ctx: ExtensionContext, state: AdapterState): Promise<unknown | undefined>;
export declare function injectPendingNativeWindowIntoPiCompactionRequest(payload: unknown, ctx: ExtensionContext, state: AdapterState): Promise<unknown | undefined>;