/**
 * Change impact analysis.
 * Given changed files/functions, find all affected callers, dependents, and tests.
 * Builds on dependency_graph + git + symbol search.
 */
export interface ChangedSymbol {
    name: string;
    file: string;
    changeType: 'added' | 'modified' | 'removed' | 'renamed';
    oldName?: string;
}
export interface ImpactResult {
    changedFiles: string[];
    changedSymbols: ChangedSymbol[];
    affectedFiles: string[];
    affectedSymbols: {
        symbol: string;
        file: string;
        line: number;
        reason: string;
    }[];
    affectedTests: string[];
    breakingChanges: string[];
    riskLevel: 'low' | 'medium' | 'high' | 'critical';
    summary: string;
}
/**
 * Parse a git diff to extract changed symbols.
 * @param diff - The raw git diff output
 * @returns Array of changed symbols with change types
 */
export declare function parseDiffForSymbols(diff: string): ChangedSymbol[];
/**
 * Analyze the impact of changes on the codebase.
 * @param cwd - The working directory
 * @param changedFiles - List of changed file paths
 * @param diff - Optional raw git diff output
 * @returns Impact analysis with affected files, symbols, tests, and risk level
 */
export declare function analyzeImpact(cwd: string, changedFiles: string[], diff?: string): Promise<ImpactResult>;
/**
 * Categorize changes as refactor/bugfix/feature/breaking.
 * @param diff - The raw git diff output
 * @returns Category, confidence score, and indicators
 */
export declare function categorizeChanges(diff: string): {
    category: string;
    confidence: number;
    indicators: string[];
};
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