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Pre-mortem plan analysis. Imagine the plan failed 12 months from now and work backwards to find the weaknesses. Surfaces assumptions, dependencies, and execution risks before committing resources. Use when before significant resource commitment, before presenting to a board or investors, when feedback has been one-sidedly positive, or when there is pressure to move fast and figure it out later.

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# challenge — Pre-Mortem Plan Analysis

**Invocation:** say `/em:challenge <plan>` or describe the task
Systematically finds weaknesses in any plan before reality does. Not to kill the plan — to make it survive contact with reality.

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## The Core Idea

Most plans fail for predictable reasons. Not bad luck — bad assumptions. Overestimated demand. Underestimated complexity. Dependencies nobody questioned. Timing that made sense in a spreadsheet but not in the real world.

The pre-mortem technique: **imagine it's 12 months from now and this plan failed spectacularly. Now work backwards. Why?**

That's not pessimism. It's how you build something that doesn't collapse.
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