100+ words and phrases to ban from Claude. Copy, paste, done.
Every AI tool writes the same way. "Leverage," "robust," "transformative." And of course, the long dash. You’ve seen them, you’ve deleted them, and your coworkers have noticed them.
The fix takes 2 minutes. Paste a banned list into your Claude Instructions once, and Claude reads it at the start of every chat.
01
Open your settings
In Claude, click your initials in the bottom-left corner, then Settings, then Your Claude. On the older settings layout, it’s Account instead.
02
Find Instructions
Scroll to Instructions (called Instructions for Claude on the older layout). If you used Cowork’s global instructions before, they now live here too, so check what’s already in the box.
03
Paste and save
Copy the list below, paste it under anything you already have, and save. These instructions apply to all your chats.
Source: Anthropic’s guide to Claude’s personalization features.
77 single words, 30 phrases, plus the punctuation and sentence patterns that give AI away. I added a line telling Claude what to write instead, because a ban list on its own can make the writing stiff.
Instructions make these words rare, but no setting is perfect. Long documents and drafts written in other tools still need a pass. Paste the draft into this prompt and you get a clean version plus a list of what changed.
Good To Know
Using ChatGPT too? Paste the same list under Settings, then Personalization, then Custom instructions. That box is shorter, so if it doesn’t fit, keep the punctuation, phrases and sentence patterns sections.