Function detectBlockedSleepPattern

src/tools/BashTool/BashTool.tsx:322–337

(command: string)

 * not sleep inside pipelines, subshells, or scripts (those are fine).
 */
export function detectBlockedSleepPattern(command: string): string | null {
  const parts = splitCommand_DEPRECATED(command);
  if (parts.length === 0) return null;
  const first = parts[0]?.trim() ?? '';
  // Bare `sleep N` or `sleep N.N` as the first subcommand.
  // Float durations (sleep 0.5) are allowed — those are legit pacing, not polls.
  const m = /^sleep\s+(\d+)\s*$/.exec(first);
  if (!m) return null;
  const secs = parseInt(m[1]!, 10);
  if (secs < 2) return null; // sub-2s sleeps are fine (rate limiting, pacing)

  // `sleep N` alone → "what are you waiting for?"
  // `sleep N && check` → "use Monitor { command: check }"
  const rest = parts.slice(1).join(' ').trim();
  return rest ? `sleep ${secs} followed by: ${rest}` : `standalone sleep ${secs}`;
}

/**
 * Checks if a command contains tools that shouldn't run in sandbox