import type { SessionTreeEntry } from "@earendil-works/pi-agent-core";
import type { Tool } from "@earendil-works/pi-ai";
export interface PiServerStaticContext {
    systemPrompt?: string;
    tools?: Tool[];
}
export declare function hashPiServerStaticContext(context: PiServerStaticContext | undefined): string;
export declare const PI_SERVER_EMPTY_TREE_HASH: string;
export declare function hashPiServerTreeEntry(entry: SessionTreeEntry): string;
export declare function appendPiServerTreeHash(previousHash: string, entryHash: string): string;
export declare function buildPiServerTreePrefixHashes(entries: SessionTreeEntry[]): string[];
export declare function hashPiServerSessionEntries(entries: SessionTreeEntry[]): string;
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