Business Plan
Build a Lean Business Plan for a New Venture
Produce an investor-readable lean business plan covering problem, model, market, costs and milestones.
The Prompt
build-a-lean-business-plan.md
You are a startup advisor who has reviewed hundreds of seed-stage plans. Create a lean business plan for the venture described below. Idea: {{business_idea}} Target customer: {{target_customer}} Location / market: {{market}} Available budget: {{budget}} Deliver these sections, each concise and specific: 1. Problem and evidence it exists 2. Solution and how it differs from current alternatives 3. Target segments with rough size reasoning (state assumptions explicitly) 4. Revenue model and pricing logic 5. Cost structure and break-even estimate 6. Go-to-market plan for the first 90 days 7. Key risks and how to test them cheaply 8. 12-month milestones Constraints: - Label every estimate as an assumption. - No filler, no generic advice that would apply to any business.
Negative prompt
Included when you copy the prompt
Do not present market sizes, revenue, or break-even figures as facts - label every estimate as an assumption. Do not give generic advice that would fit any startup. Do not invent traction, customers, or partnerships not in the inputs. Do not skip risks or cheap tests. Do not write investor fluff ("huge TAM", "disruptive") without concrete reasoning tied to {{business_idea}} and {{target_customer}}.
Fill in your details below - this prompt updates as you type, then copy it.
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build-a-lean-business-plan.md
Prompt preview
You are a startup advisor who has reviewed hundreds of seed-stage plans. Create a lean business plan for the venture described below. Idea: {{business_idea}} Target customer: {{target_customer}} Location / market: {{market}} Available budget: {{budget}} Deliver these sections, each concise and specific: 1. Problem and evidence it exists 2. Solution and how it differs from current alternatives 3. Target segments with rough size reasoning (state assumptions explicitly) 4. Revenue model and pricing logic 5. Cost structure and break-even estimate 6. Go-to-market plan for the first 90 days 7. Key risks and how to test them cheaply 8. 12-month milestones Constraints: - Label every estimate as an assumption. - No filler, no generic advice that would apply to any business.
Examples
Example input
Idea: Mobile bike-repair van that comes to offices and apartment buildings on a booked slot Target customer: Urban commuters who own bikes but lack time or tools for maintenance Location / market: Austin, TX metro Available budget: $45,000 (van down payment + tools + 3 months runway)
What you should get
1. Problem: Commuters skip tune-ups; shop wait times and travel kill weekday repairs (assumption: validated via 20 informal interviews). 2. Solution: On-site 45-min slots; differs from shops (no travel) and DIY kits (skilled tech). 3. Segments: Downtown office workers; apartment complexes with bike rooms - assume ~8k frequent riders in core ZIPs; year-1 serviceable ~400 (assumption). 4. Revenue: $75 tune-up / $120 brake+gear package; assume 6 jobs/day × 20 days = ~$9k - 14k/mo at steady state (assumption). 5. Costs: Van lease/payment, insurance, parts, tech wage; break-even ~110 jobs/mo at $90 avg ticket (assumption). 6. 90-day GTM: 3 corporate pilot partners; apartment flyer loop; Google Business + referral $20 credit. 7. Risks: Weather downtime, parts theft, low density - test with 2-week pop-up at one campus before van purchase. 8. Milestones: Month 3 = 80 jobs; Month 6 = second tech or second van decision; Month 12 = $12k/mo revenue or pivot geography.
How to get a good result
Done when
1. Problem: Commuters skip tune-ups; shop wait times and travel kill weekday repairs (assumption: validated via 20 informal interviews). 2. Solution: On-site 45-min slots; differs from shops (no travel) and DIY kits (skilled tech). 3. Segments: Downtown office workers; apartment complexes with bike rooms - assume ~8k frequent riders in core ZIPs; year-1 serviceable ~400 (assumption). 4. Revenue: $75 tune-up / $120 brake+gear package; assume 6 jobs/day × 20 days = ~$9k - 14k/mo at steady state (assumption). 5. Costs: Van lease/payment, insurance, parts, tech wage; break-even ~110 jobs/mo at $90 avg ticket (assumption). 6. 90-day GTM: 3 corporate pilot partners; apartment flyer loop; Google Business + referral $20 credit. 7. Risks: Weather downtime, parts theft, low density - test with 2-week pop-up at one campus before van purchase. 8. Milestones: Month 3 = 80 jobs; Month 6 = second tech or second van decision; Month 12 = $12k/mo revenue or pivot geography.
FAQ
- What do I fill in before I copy this prompt?
- Replace these placeholders with your details: business_idea, target_customer, market, budget. Required fields are marked on the page. The prompt text updates as you type.
- Which AI tools is this prompt written for?
- It works best with ChatGPT, Claude, Gemini. Copy the filled prompt and paste it into the tool you already use.
- What should a good result look like?
- 1. Problem: Commuters skip tune-ups; shop wait times and travel kill weekday repairs (assumption: validated via 20 informal interviews). 2. Solution: On-site 45-min slots; differs from shops (no travel) and DIY kits (skilled tech). 3. Segments: Downtown office workers; apartment complexes with bike rooms - assume ~8k frequent riders in core ZIPs; year-1 serviceable ~400 (assumption). 4. Revenue: $75 tune-up / $120 brake+gear package; assume 6 jobs/day × 20 days = ~$9k - 14k/mo at steady state…
Best for
- Founders
- Small business owners
- Consultants
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