Scenario planning: base/upside/downside with triggers

Create a scenario plan (Base/Upside/Downside) for {company_name}.

Inputs:
- Key drivers and ranges: {driver_ranges}
- Fixed vs variable cost structure: {cost_structure}
- Operational constraints: {constraints}
- Cash runway target: {cash_runway_target}
- Decision levers available: {levers}

Output:
1) Scenario assumptions table with driver values and rationale.
2) P&L and cash impact summary per scenario (monthly/quarterly).
3) Trigger metrics and thresholds (e.g., churn > X, bookings < Y).
4) Action playbook per scenario (cost actions, pricing, hiring).
5) Communication bullets for leadership/board.

Keep it practical and measurable.