/**
 * L2 Tool Registry Guard
 *
 * Maintains strict control over which tools can be executed.
 * Prevents LLM hallucination attacks.
 */
import { ToolDefinition, ToolRegistryResult, Role, GuardLogger } from "../types";
export interface ToolRegistryConfig {
    tools: ToolDefinition[];
    strictMatching?: boolean;
    logger?: GuardLogger;
}
export declare class ToolRegistry {
    private tools;
    private strictMatching;
    private logger;
    constructor(config: ToolRegistryConfig);
    /**
     * Check if a tool exists and is accessible for the given role
     */
    check(toolName: string, role: Role, requestId?: string): ToolRegistryResult;
    /**
     * Detect if tool name looks like a hallucination
     */
    private detectHallucination;
    /**
     * Find similar registered tools for helpful error messages
     */
    private findSimilarTools;
    /**
     * Get tools for a specific role
     */
    getToolsForRole(role: Role): ToolDefinition[];
    /**
     * Get all registered tool names
     */
    getRegisteredToolNames(): string[];
    /**
     * Register a new tool at runtime
     */
    registerTool(tool: ToolDefinition): void;
    /**
     * Unregister a tool
     */
    unregisterTool(toolName: string): boolean;
}