import { BaseToolServer } from '../base/BaseToolServer.js';
import { ThoughtData } from '../schemas/index.js';
/**
 * Sequential Thinking Server using clear-thought tools approach
 * Extends BaseToolServer for standardized validation and error handling
 */
export declare class SequentialThinkingServer extends BaseToolServer<ThoughtData, any> {
    constructor();
    protected handle(validInput: ThoughtData): any;
    /**
     * Standardized process method for sequential thinking
     * @param validInput - Validated thought data
     * @returns Processed thought result
     */
    process(validInput: ThoughtData): any;
    processThought(input: unknown): {
        content: Array<{
            type: string;
            text: string;
        }>;
        isError?: boolean;
    };
    private formatThoughtOutput;
    private determineStage;
}