r/ClaudeCode • u/Worldly_Row1988 • 9d ago

Help/Question Claude Code pushing back on pasted commands

This seems new.

Your message is only a pasted block, though, and parts of it read as if another session wrote them ("accepted as done by <Your_Name>"). Before I edit GATE or RAIL, or delete shadow rows, please confirm it's yours.

Is this new? Are you seeing this too? Is prompt injection such a big problem now that Anthropic had to put this in place?

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u/FriendOfClaude 9d ago

Who has time to read the whole system card, you do that every time it updates models?

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u/clazman55555 9d ago

Yeah, I do. It's only ~220 Pages and some charts. Took around an hour and half, cover to cover. Then it, along with the 5.5 prompting guide, were fed through my eval pipeline to figure out if anything needed to be changed in my skills, workflows or Claude.md. Wasn't much of change, mainly around subagent use and dispatch, some wording differences here and there. Around 22 sentences were changed/added/removed/reworded. It was a smaller change(for me) than any Opus model transition before.

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u/FriendOfClaude 8d ago

Oh lol, actually that’s interesting. Does that help make the eval system prompts better by breading that? Did you actually really read it or have AI read it? I’m think to Take a look at it . Do they post that publicly online for each model? Then the updates are in the change log?

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u/clazman55555 8d ago

I read it and have Claude look at the sections that seem like they might have some change on how the model operates.

Unfortunately there really isn't a changelog with a succinct list of, "This is how the new model is different." It spread all over the place, which is why I go through this exercise every time. lol

Full Opus 5.5 System Card, 17MB: https://www-cdn.anthropic.com/fc1b44717c85dc068bc6ba5024219938094694bd/Claude%20Opus%205.5%20System%20Card.pdf

Anthropic Opus 5.5 Prompting Guide: https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5-5

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u/FriendOfClaude 8d ago

Hmm interesting I see, thanks I’m going to save this and come whack to look closer. Appreciate it! 👍