Find the assumption your business case rests on
Trace a business case back to the one belief that, if wrong, collapses it.
What this prompt helps you do
The load-bearing assumptions ranked by how much of the case depends on each, with evidence and confidence.
When to use it
A case is being approved and its arithmetic has been checked more carefully than its premises.
What to prepare
The goal, relevant source material, constraints, examples, and the decision or action this should support.
How to get a strong result
Rank assumptions by how much of the conclusion dies with them, not by how uncertain they feel.
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.