[ryanar]

I noticed that this week. I have a very straightforward claude command that lists exact steps to follow to fetch PR comments to bring them into the context window. Stuff like step one call gh pr view my/repo and it would call it with anthropiclabs/repo instead, it wouldn’t follow all the instructions, it wouldn’t pass the exact command I had written. I pointed out the mistake and it goes oh you are right! Then proceeded to make the same mistake again.

I used this command with sonnet 4.5 too and have never had a problem until this week. Something changed either in the harness or model. This is not just vibes. Workflows I have run hundreds of times have stopped working with Opus 4.5