/**
 * ExecutiveReport — Generator for corporate ROI & productivity metrics.
 *
 * Compiles session and lifetime statistics from the savings ledger, estimating
 * financial savings, developer hours reclaimed, security compliance events, and
 * scaling projections for presenting to executive corporate sponsors.
 */
export interface ReportConfig {
    teamSize?: number;
    costPerDevHour?: number;
    targetPath?: string;
}
export interface ReportMetrics {
    totalTokensSaved: number;
    totalCostSaved: number;
    devHoursSaved: number;
    devHoursUSD: number;
    totalBusinessValue: number;
    securityEventsCount: number;
    /**
     * A-3: the other half of the ledger. Earlier versions of this report presented
     * gross savings only, which read as a net win even while the ledger showed Lemma
     * costing more than it saved. Consumers must net these against tokensSaved.
     */
    totalTokensSpent: number;
    totalCostSpent: number;
    netTokens: number;
    /** tokensSaved / tokensSpent; Infinity when nothing was spent yet. */
    netRatio: number;
}
/**
 * Calculates metrics and writes a highly structured Markdown corporate report.
 */
export declare function generateExecutiveReport(workspaceRoot: string, config?: ReportConfig): {
    metrics: ReportMetrics;
    markdown: string;
    reportPath: string;
};
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