Function cleanupDir

packages/aws-lambda/src/handler.ts:527–535

(dir: string)

}

function cleanupDir(dir: string): void {
  try {
    // Lambda warm starts can reuse `/tmp` across invocations; clean up
    // aggressively so we don't leak a chunk-sized footprint between renders.
    rmSync(dir, { recursive: true, force: true });
  } catch {
    // Best-effort — leak is preferable to crashing on success path.
  }
}

/**
 * Read the untarred planDir's `plan.json` and assert its `planHash`