Daily Prompt Pack: Ideation and Validation – Stress-Test Your Idea Before You Build

Most founders build first and validate later. These three prompts flip the script — giving you a lightweight framework to stress-test any idea before you write a single line of code.

[Claude]

Given a one-paragraph description of my startup idea, act as a skeptical VC. List 5 fatal flaws that would make you pass on the deal, then rewrite the idea to address each flaw. Output as a numbered list with the original flaw and the revised angle.

[ChatGPT]

I have a target customer {describe them in 2 sentences} and a problem I think they have {1 sentence}. Build me a 7-question validation survey that I can post in relevant Reddit communities or Slack groups. Output only the survey questions — no fluff, no explanations.

[Cursor]

Write a Python script that takes a CSV of survey responses (columns: timestamp, answer_1 to answer_7) and outputs a summary JSON with: response count, average sentiment per question, and top 3 recurring themes. Include comments explaining each step.

Full archive at aicofounderstack.com/tag/prompt-pack.