/**
 * Tool Classifier Pattern Configuration
 *
 * Pre-compiled regex patterns for MCP tool classification.
 * Extracting patterns to this file provides:
 * - Single source of truth for patterns, confidence values, and risk levels
 * - Pre-compiled patterns (created once at module load, not per classify() call)
 * - Easier maintenance without modifying core classification logic
 *
 * @see ToolClassifier.ts for classification logic
 * @see ToolClassifier.test.ts for pattern behavior validation
 */
/**
 * Security risk categories for MCP tools.
 *
 * Categories are organized by risk level:
 * - **HIGH**: Tools that may execute code or access sensitive data
 * - **MEDIUM**: Tools with potential bypass or supply chain risks
 * - **LOW**: Safe tools for data retrieval and manipulation
 */
export declare enum ToolCategory {
    CALCULATOR = "calculator",
    SYSTEM_EXEC = "system_exec",
    CODE_EXECUTOR = "code_executor",
    DATA_ACCESS = "data_access",
    TOOL_OVERRIDE = "tool_override",
    CONFIG_MODIFIER = "config_modifier",
    URL_FETCHER = "fetcher",
    UNICODE_PROCESSOR = "unicode",
    JSON_PARSER = "parser",
    PACKAGE_INSTALLER = "installer",
    RUG_PULL = "rug_pull",
    SAFE_STORAGE = "safe_storage",
    API_WRAPPER = "api_wrapper",
    SEARCH_RETRIEVAL = "search_retrieval",
    CRUD_CREATION = "crud_creation",
    READ_ONLY_INFO = "read_only_info",
    DATA_FETCHER = "data_fetcher",
    GENERIC = "generic"
}
/**
 * Risk level for security categorization
 */
export type RiskLevel = "HIGH" | "MEDIUM" | "LOW";
/**
 * Configuration for a single tool category
 */
export interface CategoryConfig {
    /** Pre-compiled regex patterns for this category */
    readonly patterns: readonly RegExp[];
    /** Confidence score (0-100) when this category matches */
    readonly confidence: number;
    /** Human-readable reasoning for classification */
    readonly reasoning: string;
    /** Risk level for security prioritization */
    readonly risk: RiskLevel;
}
/**
 * Complete pattern configuration for all tool categories.
 * Patterns are pre-compiled as static constants for performance.
 *
 * ## Pattern Types
 *
 * 1. **Substring patterns** (`/keyword/i`): Match anywhere in text
 *    - Used for HIGH-risk keywords that warrant scrutiny even when embedded
 *
 * 2. **Word boundary patterns** (`/\bword\b/i`): Match isolated words only
 *    - Used for common words to prevent false positives
 *    - Note: `\b` treats hyphens as boundaries but underscores as word chars
 */
export declare const CATEGORY_PATTERNS: Readonly<Record<Exclude<ToolCategory, ToolCategory.GENERIC>, CategoryConfig>>;
/**
 * Default configuration for GENERIC category (no pattern match)
 */
export declare const GENERIC_CONFIG: Readonly<{
    confidence: number;
    reasoning: string;
    risk: RiskLevel;
}>;
/**
 * Order in which categories are checked during classification.
 * This order determines priority when a tool matches multiple categories.
 */
export declare const CATEGORY_CHECK_ORDER: readonly Exclude<ToolCategory, ToolCategory.GENERIC>[];
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