import { CallHandler, ExecutionContext, NestInterceptor } from '@nestjs/common';
import { Observable } from 'rxjs';
import { McpCallLogWriter } from './mcp.call.log.writer';
export declare class McpCallLogInterceptor implements NestInterceptor {
    private readonly writer;
    private readonly logger;
    constructor(writer: McpCallLogWriter);
    intercept(context: ExecutionContext, next: CallHandler): Observable<unknown>;
    private surfaceOf;
    private hookResponse;
    private safeRecord;
    private build;
    private requestPayload;
    private httpTool;
    private readCost;
}