import type { RuleDecision } from "../types.js";
export interface PackageJsonConfig {
    decisions: RuleDecision[];
    existingPackageJson?: Record<string, unknown>;
}
/**
 * Merge required devDependencies into an existing package.json.
 */
export declare function mergeDependencies(config: PackageJsonConfig): {
    merged: Record<string, string>;
    missing: string[];
    suggestedCommands: string[];
};
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