/**
 * Impact Analysis Handler
 *
 * Handles change impact analysis and dependency graph operations
 */
import type { MCPToolResult } from "../../types/mcp-types.js";
/**
 * MCP handler for change impact analysis tools.
 *
 * Provides tools to build dependency graphs, analyze change impact,
 * preview affected files, and understand code dependencies.
 */
export declare class ImpactAnalysisHandler {
    private projectRoot;
    private impactAnalyzer;
    /**
     * @param projectRoot - Root directory of the project to analyze
     */
    constructor(projectRoot: string);
    /**
     * Build dependency graph
     */
    handleBuildGraph(args: {
        forceRebuild?: boolean;
    }): Promise<MCPToolResult>;
    /**
     * Analyze impact of changing files
     */
    handleAnalyzeImpact(args: {
        files: string[];
        includeTests?: boolean;
        maxDepth?: number;
        excludePatterns?: string[];
    }): Promise<MCPToolResult>;
    /**
     * Preview impact before making changes
     */
    handlePreviewImpact(args: {
        files: string[];
    }): Promise<MCPToolResult>;
    /**
     * Validate changes didn't break dependencies
     */
    handleValidateChanges(args: {
        files: string[];
    }): Promise<MCPToolResult>;
    /**
     * Get dependency graph statistics
     */
    handleGraphStats(): Promise<MCPToolResult>;
    /**
     * Group files by directory for display
     */
    private groupByDirectory;
    /**
     * Get emoji for impact level
     */
    private getImpactEmoji;
    /**
     * Get emoji for severity
     */
    private getSeverityEmoji;
}
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