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Roo-Code/.roo/rules-code/use-safeWriteJson.md
KJ7LNW 8455909809
fix: use safeWriteJson for all JSON file writes with race condition fix (#4733) 
Co-authored-by: Eric Wheeler <roo-code@z.ewheeler.org>
Co-authored-by: Daniel Riccio <ricciodaniel98@gmail.com>
2025-06-25 16:05:02 -04:00

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JSON File Writing Must Be Atomic

  • You MUST use safeWriteJson(filePath: string, data: any): Promise<void> from src/utils/safeWriteJson.ts instead of JSON.stringify with file-write operations
  • safeWriteJson will create parent directories if necessary, so do not call mkdir prior to safeWriteJson
  • safeWriteJson prevents data corruption via atomic writes with locking and streams the write to minimize memory footprint
  • Test files are exempt from this rule