Check an AI-written function against its requirements

About this exercise

A coding assistant wrote an average function and says it meets all 4 requirements. Check it by reading the code: write exactly 4 numbered lines, one per requirement in order, each labeled Met or Not met, then the line number and a reason in under 15 words. Don't rewrite the code and use no code blocks. Under 110 words.

Common mistakes when you ask AI for this

• Trusting the assistant's note. The note says everything is handled, and the AI agrees. Try: Add: "Judge only the code, not the note."
• Missing the in-place sort. sort() looks harmless, but it changes the caller's array. Try: Add: "Check whether any line changes the input array."
• No line evidence. The AI says 'fails R1' without pointing to where. Try: Add: "Cite the line number for each verdict."
• Rewriting instead of reviewing. The AI jumps to a fixed version in a code block. Try: Add: "Don't rewrite the code. No code blocks."

What a strong prompt includes

• Ignores the note
• Uses exact labels
• Asks for line numbers
• Bans rewrites
• Caps the length

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