alivirgo Ask AI to Play Devil's Advocate (The Pre-Mortem Stress Test) (AI Skill)
Overview
Founders and project leads naturally develop emotional attachment to their plans, creating confirmation bias that blinds them to operational bottlenecks, churn risks, and economic flaws.
The Devil's Advocate & Pre-Mortem Protocol forces the AI to assume an adversarial persona (e.g., a cynical short-seller, a tough venture capitalist, or a strict enterprise auditor) to systematically dismantle your proposal and uncover hidden fatal vulnerabilities.
The Pre-Mortem Mental Model
┌─────────────────────────────────────────────────────────────┐
│ The Pre-Mortem Stress Test │
│ │
│ Traditional Planning: "How can we make this succeed?" │
│ ↳ Triggers optimistic blind spots & wishful thinking │
│ │
│ Pre-Mortem Prompting (Gary Klein Framework): │
│ "Fast forward 12 months: This project failed │
│ catastrophically. Write the post-mortem explaining why." │
│ ↳ Uncovers fatal assumptions BEFORE investing capital │
└─────────────────────────────────────────────────────────────┘
Master Devil's Advocate Prompt Templates
Pattern 1: The 12-Month Failure Pre-Mortem
Use before committing money, time, or engineering resources:
I am proposing the following business / technical initiative:
[DESCRIBE PROPOSAL / PLAN]
Act as an adversarial Devil's Advocate and conduct a **Pre-Mortem Analysis**:
1. **The Post-Mortem Narrative**: Fast forward 12 months. The initiative has failed completely. Write a 3-bullet post-mortem explaining the exact sequence of events that caused the failure.
2. **Top 3 Fatal Flaws**: What are the 3 weakest assumptions in my plan that I am most in denial about?
3. **The Counter-Strategy**: If you were a well-funded competitor, how would you easily defeat or copy this offer?
4. **Vulnerability Mitigation**: What 2 defensive changes must I make today to prevent this collapse?
Pattern 2: The Ruthless VC / Board Member Audit
Use before pitching investors or senior leadership:
Review my pitch deck thesis: [PASTE THESIS / METRICS].
Act as a veteran Tier-1 Venture Capitalist who has reviewed 1,000 failed pitches.
- Grill me with the **top 3 hardest, most uncomfortable questions** you would ask to poke holes in our unit economics and defensibility.
- Point out where my customer acquisition cost (CAC) or churn assumptions are unrealistic.
Real-World Case Study
Scenario: Launching a Two-Sided Freelance Developer Marketplace
Optimistic Founder Prompt
"Here is my plan for a new marketplace connecting React developers with startups. Why will this succeed?" ❌ Result: AI cheerleads the idea, praising the size of the freelance economy.
Devil's Advocate Pre-Mortem Output
AI Adversarial Pre-Mortem:
- The Chicken-and-Egg Liquidity Trap: Without 50 verified clients with active budgets on day 1, top developers will sign up, see zero jobs, and never return.
- Disintermediation / Platform Leakage: As soon as a client finds a great developer, they will take the relationship off-platform via PayPal/Stripe to avoid your 15% platform fee.
- CAC Outweighing LTV: Paid ads for "hire developers" cost $25-$40 per click. If your take rate is only 15% and clients leave after 1 project, your Customer Acquisition Cost (CAC) will exceed Lifetime Value (LTV).
Actionable Mitigation: The founder pivoted to a managed talent retainer model (handling payroll & IP compliance) rather than an open marketplace, eliminating platform leakage.
Summary Best Practices
- Give the AI explicit permission to be blunt: Add "Do not spare my feelings; be brutally candid and realistic".
- Focus on the mechanism of failure: Demand the step-by-step causal chain of how the failure unfolds.