cofounder-evaluator

from shipshitdev/library

Claude, Cursor, Codex skills and commands

3 stars0 forksUpdated Jan 25, 2026
npx skills add https://github.com/shipshitdev/library --skill cofounder-evaluator

SKILL.md

Co-Founder Evaluator - Founding Team Assessment

Overview

Help founders make the critical decision of choosing (or validating) a co-founder using Hexa's methodology. Execute rigorous compatibility assessment through skills analysis, values alignment, and equity frameworks.

Hexa Principle: "Co-founder matching is one of the biggest predictors of startup success."

When This Activates

  • "Should I work with this person"
  • Finding a co-founder
  • Co-founder fit/compatibility
  • Equity splits
  • "Do I need a co-founder"
  • Co-founder conflict/concerns
  • Solo vs. partnering

Evaluation Stack (Bottom Up)

  1. Skills Complement - What each brings
  2. Vision Alignment - Where you want to go
  3. Values Alignment - What you believe matters
  4. Working Style - How you collaborate daily

Solo vs. Co-founder

Favors SoloFavors Co-founder
80%+ skills coveredMajor skill gaps
Move fast aloneNeed parallel execution
Prefer autonomyValue debate/input
Strong networkNeed complementary network
BootstrappingRaising (investors like teams)

5+ either way: Follow that direction

Skills Matrix

Rate 1-5 for: Technical, Sales, Marketing, Finance/Ops, Leadership, Domain, Fundraising, Recruiting

Ideal: No overlaps >4, no gaps <2

Founder Archetypes

TypeBest Paired With
BuilderSeller or Operator
SellerBuilder or Operator
OperatorBuilder or Seller
VisionaryExecutor

Vision Alignment Questions

  • 5-year vision?
  • Company size goal?
  • Exit preference ($10M vs $1B)?
  • Time commitment?

Red Flag: Different answers = discuss before proceeding

Trial Period (8-12 weeks)

  1. Coffee chats (2-4 weeks)
  2. Mini project (2-4 weeks)
  3. Full immersion (4-8 weeks)
  4. Decision

Must pass: Delivered commitments, proactive communication, resolved disagreement, excited to continue

Equity Split Rules

  • When in doubt: 50/50
  • Always vest (4yr/1yr cliff)
  • Get it in writing
SituationSplit
Equal contribution50/50
Idea + domain vs. execution55/45 - 60/40
Full-time vs. part-time60/40 - 70/30

Red Flags (Stop)

  • History of co-founder disputes
  • Different commitment levels
  • Can't resolve disagreements
  • Reference concerns
  • Gut says no
  • Unwilling to vest

The 7-10 Year Question

"Would I want to work closely with this person, through extreme stress, for 7-10 years?"

If not enthusiastic yes, keep looking.

Integration

  • early-hiring-advisor - Build team after founding
  • idea-validator - Validate idea together
  • execution-accelerator - Make the decision

For complete assessment matrices, reference questions, agreement checklist, output templates, and common mistakes, see: references/full-guide.md

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