Reconstruct a system's behaviour from its tests
Read the whole test suite to learn what the system is supposed to do.
What this prompt helps you do
The documented behaviour, the guarantees the tests enforce, and the behaviour nothing covers.
When to use it
A system has tests but no useful documentation of its intended behaviour.
What to prepare
The goal, relevant source material, constraints, examples, and the decision or action this should support.
How to get a strong result
Report what is untested; those are the behaviours nobody has committed to, whatever the code does.
How to use this prompt
Replace each placeholder with accurate context. Paste the complete prompt into Claude, review the response critically, resolve important questions, and use it as a considered input to the next decision—not as an unchecked final answer.