Function isJsonLine

src/utils/streamJsonStdoutGuard.ts:14–26

(line: string)

let originalWrite: typeof process.stdout.write | null = null

function isJsonLine(line: string): boolean {
  // Empty lines are tolerated in NDJSON streams — treat them as valid so a
  // trailing newline or a blank separator doesn't trip the guard.
  if (line.length === 0) {
    return true
  }
  try {
    JSON.parse(line)
    return true
  } catch {
    return false
  }
}

/**
 * Install a runtime guard on process.stdout.write for --output-format=stream-json.