Function readExtractMetrics

src/tools/web/extract-metrics.ts:54–62

()

/** Read + aggregate the metrics file (last 5000 events). Best-effort → zeros if absent. */
export async function readExtractMetrics(): Promise<ExtractCounts> {
  try {
    const { promises: fs } = await import('fs');
    const file = await metricsFile();
    const text = await fs.readFile(file, 'utf-8');
    const lines = text.split('\n');
    return parseExtractMetrics(lines.slice(-5000).join('\n'));
  } catch { return { semantic: 0, headTail: 0, truncated: 0, semanticRate: 0 }; }
}