Phantom Board

Inspiration

Every major decision in business and life deserves more than one perspective — but most of us only ask one mentor, one friend, or one advisor. I wanted to answer a question I kept asking myself: What would the greatest minds in history actually say about my problem — and what if they could argue with each other?

That question became Phantom Board.

What it does

Phantom Board is an AI-powered advisory board simulator for entrepreneurs, professionals, and decision-makers.

Users assemble a personal board of up to 5 advisors from history's greatest minds — Steve Jobs, Sun Tzu, Warren Buffett, Marcus Aurelius, Machiavelli, Nikola Tesla, Marie Curie, and Oprah Winfrey. They present any real business or career problem, and the board holds a live group debate — with each advisor responding in their authentic voice, challenging each other by name, and pushing back on weak arguments.

The session ends with a structured Board Summary: majority stance, key action items, and the most contrarian view. Every session is saved to history for future reference.

Key features:

• Cross-advisor debate — advisors reference and challenge each other, not just the user
• Devil's Advocate mode — one advisor is randomly assigned to challenge consensus
• Board Summary — structured decision + action items after every debate
• Session History — revisit any past board session
• Premium boardroom UI — dark, focused, distraction-free design

How I built it

Phantom Board was built entirely using MeDo — from the initial prompt to full deployment, with zero manual coding. I used MeDo's Deep Build mode and iterative multi-turn prompting to shape the UI, the AI debate logic, and the session management system.

The most impressive part MeDo generated: the cross-advisor debate engine — where advisors don't just answer independently but actually reference each other's arguments mid-discussion, creating a dynamic that feels like a real boardroom disagreement.

Challenges I ran into

The biggest challenge was getting advisors to feel genuinely distinct — not just stylistically different but philosophically opposed. The breakthrough was prompting each advisor with their core worldview as a constraint, so when Jobs and Buffett clash, it's not random — it's a real tension between "control the narrative at all costs" vs. "never race to the bottom."

Accomplishments that I'm proud of

• Built a fully deployed, functional AI app with no coding — just natural language prompts
• The debate feels real — advisors challenge each other by name and push back on weak logic
• The Board Summary provides genuinely useful, structured business advice
• The design feels like a premium SaaS product, not a hackathon prototype

What I learned

MeDo is extraordinarily powerful when you think in systems, not features. Instead of prompting "add a chat feature," thinking "simulate a boardroom where 5 distinct personalities with opposing worldviews debate a single question" unlocked a completely different level of output.

What's next for Phantom Board

• Custom Advisor — upload any person's writings or speeches to add them to your board
• Industry-specific boards — pre-built boards for startups, marketing, finance, leadership
• Team sessions — multiple users joining one boardroom session together
• Export to PDF — shareable decision reports for teams

Built With

• ai-(large-language-models)
• css
• html
• javascript
• medo