Opus 5.5 works longer on its own and thinks before every reply, so the old prompt habits can get in the way. This is the checklist from Anthropic's guide, in the order to try it.
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Get the full setup steps + the copy-paste setup prompt
The rest of this guide (3 more sections, 1 copy-paste prompt) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.
Unlocks: The checklist · The catch · Sources
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