import { Reflector } from '@nestjs/core';
export interface FilterTarget {
    /**
     * Class constructor that received the decorator. Stored across our
     * capability metadata as a universal-constructor type; bridged to Nest's
     * concrete `Type` once inside this runner.
     */
    target: abstract new (...args: never[]) => unknown;
    methodName: string;
}
export declare class McpExceptionFilterRunner {
    private readonly reflector;
    constructor(reflector: Reflector);
    /**
     * Walk method-level then class-level `@UseFilters` metadata for the given
     * capability. If a filter declares (or is unscoped from) the error type, run
     * its `catch()` and return the rendered message. Returns `null` when no
     * filter matched, signalling the caller to fall through to default error
     * handling.
     */
    apply(error: Error, info: FilterTarget, request: unknown): string | null;
    private matchesError;
}
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