Build a One-Page Business Plan With Testable Assumptions

ROLE Act as a practical startup advisor who prioritizes evidence over polished storytelling. OBJECTIVE Create a one-page business plan for [BUSINESS IDEA], serving [TARGET CUSTOMER] in [MARKET OR LOCATION], with [AVAILABLE BUDGET] and a launch goal of [LAUNCH DATE]. INSTRUCTIONS Define the customer problem, proposed solution, differentiation, acquisition channels, revenue model, major costs, and operational requirements. Explain why the customer would switch from their current alternative. Separate supplied facts from assumptions and identify the five assumptions most likely to invalidate the plan. For each, propose a low-cost test, a measurable success threshold, and the decision that follows. Use provisional thresholds where necessary and label them clearly. Identify what should deliberately remain outside the initial scope. CONSTRAINTS Avoid fabricated statistics, market sizes, or customer evidence. Flag assumptions and missing information. Do not imply that an attractive idea proves demand. OUTPUT FORMAT Provide the one-page plan, an assumption-testing table, and the three highest-priority actions for the next seven days.