new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Prompt Engineering · all subjects

system prompts

3 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

System prompt definition and placement

A system prompt is a way to provide context, instructions, and guidelines to Claude before presenting it with a question or task in the user turn. System prompts exist separately from the list of user and assistant messages in a dedicated system parameter, not within the messages array.

System prompt benefit for Claude performance

A well-written system prompt can improve Claude's performance in a variety of ways, such as increasing Claude's ability to follow rules and instructions.

System prompt example for controlling response style

A system prompt can control how Claude formats its response. For example, the system prompt 'Your answer should always be a series of critical thinking questions that further the conversation (do not provide answers to your questions). Do not actually answer the user question.' makes Claude respond with questions instead of direct answers.

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