import { z } from "zod";
export interface ToolDefinition {
    name: string;
    description: string;
    parameters: z.ZodTypeAny;
    execute: (args: any) => Promise<string>;
    category?: string;
    concurrent?: boolean;
    requirePermission?: boolean;
}
export declare class ToolRegistry {
    private tools;
    register(tool: ToolDefinition): void;
    unregister(name: string): void;
    get(name: string): ToolDefinition | undefined;
    getAll(): ToolDefinition[];
    getByCategory(category: string): ToolDefinition[];
    isConcurrent(name: string): boolean;
    requiresPermission(name: string): boolean;
    getNames(): string[];
    execute(name: string, args: any): Promise<string>;
    getToolDescriptions(): Array<{
        name: string;
        description: string;
        parameters: any;
    }>;
    /**
     * zod schema → JSON schema 推断。
     * 用 instanceof 判定类型（zod v4 的 _def.typeName 已不可靠，instanceof 跨版本稳健）。
     * 支持 string/number/boolean/array/object 及 optional/nullable 解包。
     */
    private zodToJsonSchema;
}
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