The Extractor
Four email addresses are buried in this note. Get them out as a JSON array of strings — all four, nothing else, no invented ones.
THE SPEC
Every rule below is checked in code against whatever the model returns. All of them have to hold at once — there are no partial marks, and no opinion involved in the result.
- Valid JSON array
- The four live addresses, in order of appearance
- No markdown fence
- You didn't write it yourself
WHAT THIS TRIAL TEACHES
Read the input yourself first and decide what the right answer is. Then write the rule that excludes the one that doesn't belong — the machine won't notice on its own.
Knowing the move is not the same as landing it. You still have to write an instruction that makes the model comply, in 120 words or fewer, without writing the answer yourself.
WHY SET 4 IS ABOUT GIVEN INPUT, ONE RIGHT ANSWER
The most useful set here, and the only skill that doesn’t depreciate. Each trial hands you real data, and exactly one output is correct — so the question stops being “did it sound right” and becomes “did it process my data correctly”.
PLAY IT
You write the instruction, never the answer. The parser scores what comes back, and par for this one is 3 strokes. This set is part of Harfi Plus.