Startup Validator Skill
Evaluate startup ideas with proven validation frameworks, not optimism.
<when_to_use>
| Situation | Example |
|---|---|
| Idea validation | Evaluate a new startup concept |
| Before fundraising | Identify weaknesses before pitching |
| Pivot decisions | Continue current direction vs pivot |
| Competitive review | Compare your position vs competitors |
| PMF check | Assess Product-Market Fit readiness |
/startup-validator AI-based education service
/startup-validator subscription healthcare app
/startup-validator crawling-based purchasing automation
Output: total score (100) + 7-question analysis + weakness diagnosis + improvement roadmap.
</when_to_use>
<argument_validation>
If $ARGUMENTS is missing, ask immediately:
"Which startup idea should we validate?
Examples:
- 'AI-based education service'
- 'Subscription healthcare app'
- 'B2B SaaS marketing automation'"
</argument_validation>
<validation_frameworks>
Core Validation Frameworks
1. Peter Thiel's 7 Questions (Zero to One)
| # | Question | Evaluation criteria | Points |
|---|---|---|---|
| 1. Engineering | Can you build a 10x better technology, not incremental improvement? | Disruptive vs incremental | 15 |
| 2. Timing | Is now the right time for this business? | Market maturity, regulation, tech readiness | 10 |
| 3. Monopoly | Do you start with high share in a small market? | Niche focus vs broad diffusion | 15 |
| 4. People | Do you have the right team? | Founder-market fit | 10 |
| 5. Distribution | Do you have a way to deliver and sell the product? | Channels, GTM strategy | 15 |
| 6. Durability | Is it defensible in 10-20 years? | Moat durability | 15 |
| 7. Secret | Did you discover a non-obvious opportunity? | Unique insight | 20 |
Source: Zero to One
2. Y Combinator PMF Indicators (Michael Seibel)
| Indicator | Description | Check |
|---|---|---|
| Demand pressure | Demand/usage outpaces ability to supply | ☐ |
| Organic growth | 40-60% from word of mouth | ☐ |
| Support overload | Customer requests become hard to handle | ☐ |
| User pain on downtime | Users react strongly when unavailable | ☐ |
| Repeat usage | Core metric shows frequent repeat behavior | ☐ |
Pre-PMF checklist:
- Is this a "hair-on-fire" problem?
- Would users adopt even a rough v1 from a tiny team?
- Are customers paying (or clearly willing to pay)?
Source: Y Combinator Library
3. The Mom Test (Rob Fitzpatrick)
Three core rules:
| Rule | Better question | Bad question |
|---|---|---|
| Focus on customer life | "How did you solve this last time?" | "Would you use our product?" |
| Ask about past behavior | "When was the last time you did X?" | "How often do you usually do X?" |
| Listen more than talk | silence and probing | long product pitch |
Bad data to reject:
- Empty praise ("Great idea")
- Hypothetical language ("I might use it")
- Feature wishlists without commitment
Source: The Mom Test Summary
4. Customer Development (Steve Blank)
| Stage | Key question | Evidence |
|---|---|---|
| Customer Discovery | Is the problem real? | 10+ interviews |
| Customer Validation | Is acquisition repeatable/scalable? | 5+ paying customers |
| Customer Creation | Can demand be generated systematically? | Organic growth signal |
| Company Building | Can the company operationalize growth? | Defined process |
Source: Steve Blank
5. JTBD Validation (Clayton Christensen)
Forces of Progress:
For change:
- PUSH: pain in current situation
- PULL: attraction of new solution
Against change:
- HABIT: inertia of current behavior
- ANXIETY: fear of switching
Decision signal: Push + Pull > Habit + Anxiety
Source: Christensen Institute
6. Lean Canvas Critical Checks
| Block | Validation question | Risk level |
|---|---|---|
| Problem | Are the top 3 problems real? | High |
| Customer Segments | Are early adopters clearly defined? | High |
| UVP | Can differentiation be explained in one sentence? | High |
| Solution | Can it be validated with MVP scope? | Medium |
| Channels | Is there a practical acquisition path? | Medium |
| Revenue Streams | Will users pay? | High |
| Cost Structure | Do unit economics work? | Medium |
| Key Metrics | Is one critical metric defined? | Medium |
| Unfair Advantage | Is there something hard to copy? | High |
Source: Lean Canvas
</validation_frameworks>
<scoring_system>
Scoring System
Total score (100)
| Area | Weight | Rule |
|---|---|---|
| Thiel 7 questions | 100 | Based on table above |
| PMF readiness bonus | +10 | If 3 or more PMF checks pass |
| Critical-risk penalty | -10 each | For each unresolved critical weakness |
Grade bands
| Grade | Score | Verdict | Next step |
|---|---|---|---|
| S | 90+ | Execute now | Full commitment, fundraising ready |
| A | 80-89 | Strong | Patch weaknesses and proceed |
| B | 70-79 | Promising | More validation required |
| C | 60-69 | Needs rethink | Consider pivot |
| D | 50-59 | Risky | Fundamental redesign |
| F | <50 | Stop recommended | Explore alternatives |
Weakness severity
| Level | Meaning | Action |
|---|---|---|
| Critical | Failure likely if unresolved | Fix immediately |
| Major | Likely growth bottleneck | Fix within 6 months |
| Minor | Improvement opportunity | Lower priority |
</scoring_system>
<workflow>
| Phase | Task | Tool | Required check |
|---|---|---|---|
| 0 | Input check | - | Validate ARGUMENT |
| 1 | Understand idea | Sequential Thinking (3) | Extract 3 core hypotheses |
| 2 | Analyze 7 questions | Parallel Task x3 | Score + evidence for each question |
| 3 | Validate PMF/JTBD | Sequential Thinking (5) | Forces analysis + PMF checklist |
| 4 | Final assessment | Sequential Thinking (3) | Total score + grade + weakness map |
| 5 | Improvement roadmap | Sequential Thinking (3) | Prioritized actions |
| 6 | Save output | Write | .hypercore/validation-results/ |
Phase 1: Extract core hypotheses
Sequential Thinking:
thought 1: define idea in one sentence
thought 2: value hypothesis - do customers want this?
thought 3: growth hypothesis - can this scale?
Phase 2: Parallel 7-question analysis
Task({ subagent_type: 'analyst', model: 'sonnet',
prompt: 'Analyze Thiel Q1-2-3 (Engineering, Timing, Monopoly) with scores and evidence' })
Task({ subagent_type: 'analyst', model: 'sonnet',
prompt: 'Analyze Thiel Q4-5 (People, Distribution) with scores and evidence' })
Task({ subagent_type: 'analyst', model: 'sonnet',
prompt: 'Analyze Thiel Q6-7 (Durability, Secret) with scores and evidence' })
Phase 3: Forces of Progress
Sequential Thinking:
thought 1: PUSH - pain in status quo
thought 2: PULL - attractiveness of new solution
thought 3: HABIT - inertia of current behavior
thought 4: ANXIETY - switching risks
thought 5: estimate switching probability from force balance
Phase 4: Final scoring
Sequential Thinking:
thought 1: compute total 7-question score
thought 2: evaluate PMF bonus
thought 3: identify critical weaknesses and penalties
thought 4: decide final grade
</workflow>
<result_structure>
| Section | Content |
|---|---|
| Header | date, idea name, total score/grade |
| 1. Executive summary | one-line verdict + top strengths/weaknesses |
| 2. Thiel 7-question analysis | per-question score + detailed rationale |
| 3. PMF readiness | checklist + Forces analysis |
| 4. Weakness diagnosis | severity classification + evidence |
| 5. Improvement roadmap | immediate / 30-day / 90-day actions |
| 6. Go/No-Go | final recommendation |
Question analysis format
### Q1. Engineering (10x technology) - [X]/15
**Current state**: ...
**10x benchmark**: ...
**Scoring rationale**: ...
**Improvement direction**: ...
Weakness diagnosis format
### [Critical] Weakness 1: [Title]
**Current state**: ...
**Risk if unresolved**: ...
**Fix**: ...
**Required resources**: ...
Roadmap format
## Immediate (This Week)
1. [Action] - [Goal] - [Owner]
## Within 30 Days
1. [Action] - [Goal] - [Owner]
## Within 90 Days
1. [Action] - [Goal] - [Owner]
</result_structure>
<examples>
/startup-validator crawling-based purchasing automation
Phase 1:
- Core idea: AI crawls commerce products and automates buying workflows
- Value hypothesis: purchasing agents suffer from manual workload
- Growth hypothesis: 10x throughput leads to scalable revenue
Phase 2 (parallel):
Q1 Engineering: 8/15
Q2 Timing: 9/10
Q3 Monopoly: 12/15
Q4 People: 7/10
Q5 Distribution: 10/15
Q6 Durability: 8/15
Q7 Secret: 12/20
Phase 3:
PUSH: high manual pain
PULL: high automation benefit
HABIT: medium inertia
ANXIETY: low to medium transition concern
Phase 4:
total: 66/100 -> Grade C
critical weakness: platform policy dependency
major weakness: weak 10x technical moat
Saved: .hypercore/validation-results/00.purchasing-automation.md
</examples>
<validation>
| Item | Required |
|---|---|
| ARGUMENT | Ask immediately if missing |
| Phase 1 | Three hypotheses (one-line core/value/growth) |
| Phase 2 | All 7 questions scored with evidence |
| Phase 3 | All four forces + PMF checklist |
| Phase 4 | Total score + grade + severity map |
| Phase 5 | Immediate/30-day/90-day roadmap |
| Save | .hypercore/validation-results/ |
| Forbidden |
|---|
| Start without ARGUMENT |
| Analyze only part of the 7 questions |
| Provide only qualitative judgment without scoring |
| Provide only positive review without weaknesses |
| Criticize without actionable improvements |
| End without saving output |
<synergy_with_genius_thinking>
Workflow with genius-thinking
| Step | Skill | Goal |
|---|---|---|
| 1 | /genius-thinking | Generate 10+ ideas |
| 2 | /startup-validator | Strictly validate top candidates |
| 3 | Final selection | Choose highest-scoring direction |
/genius-thinking AI healthcare startup ideas
/startup-validator [idea 1]
/startup-validator [idea 2]
/startup-validator [idea 3]
</synergy_with_genius_thinking>
<references>
Core frameworks:
- Zero to One: Peter Thiel notes
- Thiel 7 questions: reference
- PMF: Y Combinator
- Michael Seibel PMF notes: YC blog
Validation methods:
- The Mom Test: summary
- Customer Development: Steve Blank
- Lean Canvas: Ash Maurya
- JTBD: Christensen Institute
Additional reading:
</references>