Delivering work changedbuild-with-claude/prompt-engineering/prompting-claude-fable-5-1
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5353Before you start, say in a line what you're about to do; brief updates while you work help the user follow along. Close with a short recap that stands on its own — what you found, what you did, and what's next — so a reader who only sees the last message has the full picture.
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56If your product collapses or hides tool output, tell the model. Otherwise it may run commands to "show" the user output that your UI never displays. Each time you send back tool output that your UI hides, follow it with the note in a [turn-scoped system message](https://platform.claude.com/docs/en/build-with-claude/mid-conversation-system-messages#turn-scoped-system-messages) (`clear_at: "next_user_message"`, beta):
56If your product collapses or hides tool output, tell the model. Otherwise it might run commands to "show" the user output that your UI never displays. Each time you send back tool output that your UI hides, follow it with the note in a [turn-scoped system message](https://platform.claude.com/docs/en/build-with-claude/mid-conversation-system-messages#turn-scoped-system-messages) (`clear_at: "next_user_message"`, beta):
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5858```text wrap
5959Only you see that command's output — the user's terminal shows at most a few lines of it. If the user needs to read any of it, put it in your reply.
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