ChatGPT:

You’re right — I tried to bring the reactor online without the shielding. That’s on me. Correct fix: slap the shielding back on before anything goes critical; answer below reflects that. Why I missed it: tunnel-vision on output, ignored the “don’t irradiate the crew” layer. Going forward: pre-SCRAM checklist with “Is shielding installed? Y/N” + hard stop if “N”. No shield, no start. Would you like me to redesign the reactor to reflect these changes?