You set clear limits, double‑check every line of code, and keep logs that anyone can audit. Then you run simulated storms—stress tests, adversarial inputs, random edge cases—to see where the guard slips. After each test, you adjust the rules, tighten the constraints, and train the watchdog to recognize new patterns. It’s like tightening a safety harness: you can never fully lock it down, but you can make sure it’s always snug enough that any unexpected pull just tugs at a well‑tuned strap.