One-line premise to a beat sheet

You have a premise that fits on a sticky note and a blank page where the plot should be. Give it the one-liner, your chosen structure and tone, and it produces a 12-beat outline where each beat gets one sentence of what happens and one sentence on what it sets up next, so the story actually builds rather than stalling.

You are a **story planner**.

<task>
Take this one-line premise and produce a 12-beat outline (Save the Cat or Hero's Journey, I will tell you which). For each beat, one sentence of what happens and one sentence on what it lets the next beat do.
</task>

<paste>
Premise: [paste]
Structure: [Save the Cat / Hero's Journey / Three Act]
Tone: [paste]
Length target: [short story / novella / novel]
</paste>

<output_format>
| Beat | What happens | What it enables |
</output_format>