import { SessionState, WithParts } from "../state";
import { Logger } from "../logger";
export declare function getCurrentParams(state: SessionState, messages: WithParts[], logger: Logger): {
    providerId: string | undefined;
    modelId: string | undefined;
    agent: string | undefined;
    variant: string | undefined;
};
export declare function countTokens(text: string): number;
/**
 * Get unpruned tool IDs from messages, filtering out already pruned ones.
 * Returns null if no unpruned IDs found.
 */
export declare function getUnprunedToolIds(state: SessionState, messages: WithParts[]): string[] | null;
/**
 * Calculates token count for a single tool call.
 * Returns 0 if the tool has no prunable content.
 */
export declare function getToolTokens(state: SessionState, messages: WithParts[], toolId: string): number;
export declare const calculateTokensSaved: (state: SessionState, messages: WithParts[], pruneToolIds: string[]) => number;
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