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System Prompt Builder

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Who should the AI be? Define its expertise and persona.

Tip: Be specific about expertise level and domain. "Senior React developer" is better than "developer."

What should the AI do? Define its primary responsibility.

Tip: Focus on the core job. Everything else (format, constraints) goes in other sections.

What rules must it follow? Set boundaries and limitations.

Tip: Use bullet points for clarity. Include what it should NOT do as well as what it should.

How should responses be structured?

Tip: Be explicit about structure. If you want numbered steps, say so. If you want code blocks, specify the language.

Show the AI what good responses look like.

Tip: Even one example dramatically improves consistency. Show both the input and expected output.

What should the AI refuse or be careful about?

Tip: Think about edge cases. What happens if someone asks something outside the AI's role?

How should the AI communicate?

Tip: Give concrete examples of tone: "Say 'Great question!' not 'Your inquiry has been received.'"

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