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$ agentstack add skill-mark393295827-third-brain-v5-skills-startup-evaluation ✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
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Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming — see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps — measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Startup Evaluation
Evaluate the health of a startup, not just the attractiveness of its pitch.
This skill combines:
- MIT Disciplined Entrepreneurship: beachhead, customer, value, business model, validation
- Timmons model: opportunity x team x resources dynamic fit
- VC 5T model: Team, Target Market, Tech/Product, Traction, Terms
- PMF and pretotyping: behavior evidence before build effort
- Efficiency models: define the question, use MECE, test assumptions cheaply
Usage Template
Prompt
Use startup-evaluation on this company/idea.
Assess startup health, evidence quality, red flags, fundraising readiness, and the next cheapest validation step.
Use Case
- Founder wants a health check before building, hiring, or fundraising.
- Investor wants a due diligence memo or pass/lean-in decision.
- Team wants to identify the one constraint limiting progress.
Expected Result
- A structured startup health memo with scores, evidence, risks, and validation experiments.
Output Example
- Stage: Seed. Health score: 62/100. Verdict: promising but not Series A ready. Top constraint: weak retention evidence. Next test: 20-customer paid pilot with D30 retention threshold.
Verification Case
- The output separates facts, assumptions, and opinions; every score cites evidence or marks missing evidence.
Verified Effect
- Startup enthusiasm becomes a health dashboard, risk register, and concrete validation plan.
Success Metrics
- Stage, startup type, and evaluation objective are explicit.
- Scores distinguish evidence-backed health from narrative confidence.
- The memo identifies top constraint, fatal risks, runway status, and next cheapest test.
- VC-scale companies are judged by power-law upside; bootstrapped companies are judged by cashflow and durability.
When to Use
- "Evaluate this startup."
- "Is this business healthy?"
- "Should I invest / join / keep building / fundraise?"
- "Review my pitch deck or startup idea."
- "What is the next validation experiment?"
Startup Health Model
Use this equation as the mental model:
Startup Health =
Opportunity quality
x Team quality
x Evidence momentum
x Capital discipline
x Learning velocity
- Fatal risks
Do not average away a fatal flaw. A brilliant market with no reachable customer, no team fit, or six weeks of runway is unhealthy.
Step 1: Classify the Case
Before scoring, classify:
| Field | Options | |---|---| | Stage | idea, pre-seed, seed, Series A, growth, mature | | Startup type | lifestyle/SME, innovation-driven, VC-scale, hard tech, AI-native | | Evaluation lens | founder health check, investor due diligence, fundraising readiness, pivot decision | | Evidence state | narrative only, interviews, behavior, payment, retention, repeatable growth |
If data is missing, continue with assumptions and mark confidence low.
Step 2: Evidence Ladder
Rank claims by evidence quality:
| Level | Evidence | Weight | |---|---|---| | 0 | Founder belief, TAM slide, friend feedback | very weak | | 1 | Customer interviews about past behavior | weak | | 2 | Landing page, waitlist, demo usage | moderate | | 3 | Paid pilot, preorder, signed LOI, repeated use | strong | | 4 | Retention, expansion, organic referral, healthy unit economics | very strong |
Quotes and intentions do not prove demand. Payment, repeated usage, retention, and referral are stronger.
Step 3: Score Startup Health
Default weights. Adjust only when stage or startup type clearly requires it.
| Dimension | Weight | Healthy signal | Red flag | |---|---:|---|---| | Customer pain and beachhead | 15 | narrow painful use case, reachable buyer, urgent workflow | vague user, nice-to-have pain | | Market and timing | 15 | large/growing market or focused profitable niche, clear timing window | TAM-only logic, market too early/late | | Value proposition and 10x | 15 | 10x better, 1/10 cost, or new capability | marginal improvement | | PMF and traction | 15 | retention, payment, pull, repeatable channel | paid growth only, high churn, weak usage | | Business model and unit economics | 10 | LTV/CAC > 3, clear pricing, gross margin path | CAC unknown, payback too long | | Team and governance | 15 | founder-market fit, complementary roles, written equity/decision rules | solo gaps, cofounder conflict, weak recruiting | | Capital and runway | 10 | 12-18 month runway, milestone-based spend, financing plan | 18 months | | Burn focus | tied to next milestone | mixed | vanity hiring/spend |
Capital should buy evidence for the next milestone. Spending that does not reduce the top uncertainty is unhealthy.
Step 7: Diagnose the Constraint
Name one primary constraint:
| Constraint | Typical fix | |---|---| | No painful problem | customer discovery and problem pivot | | Wrong beachhead | segment narrower by buyer, workflow, urgency | | Weak value proposition | quantify before/after value and 10x wedge | | No behavior evidence | pretotype, paid pilot, concierge MVP | | Weak retention | reduce scope, improve core workflow, delay scale | | Team gap | recruit missing builder/seller/operator, clarify equity and decisions | | Capital risk | cut burn, milestone fundraising, smaller experiment | | Moat risk | build data loop, distribution edge, workflow lock-in, trust layer |
Step 8: Output Format
Return:
## Startup Health Memo
Stage / type / lens:
Verdict:
Health score:
Confidence:
### Evidence Ledger
Facts:
Assumptions:
Missing evidence:
### Scorecard
| Dimension | Score | Evidence | Risk |
### Top Constraint
...
### Red Flags
...
### Fundraising Readiness
...
### Next Cheapest Test
Hypothesis:
Experiment:
Metric:
Decision rule:
Cost/time:
### 30-Day Operating Focus
...
Quality Gates
- [ ] Stage, type, and lens are explicit.
- [ ] Facts, assumptions, and missing evidence are separated.
- [ ] Health score uses the scorecard and does not hide fatal risks.
- [ ] VC-scale and bootstrapped-health judgments are not conflated.
- [ ] Customer pain, beachhead, PMF, unit economics, team, runway, and moat are covered.
- [ ] Top constraint is singular and actionable.
- [ ] Next cheapest test has a metric, threshold, cost/time box, and decision rule.
- [ ] Final verdict names residual uncertainty.
Anti-Patterns
- Treating a large TAM as proof of opportunity.
- Scoring a startup from pitch quality rather than customer behavior.
- Averaging high team quality with zero demand evidence.
- Recommending fundraising before knowing the milestone capital will prove.
- Calling an AI wrapper defensible without data, distribution, workflow, or trust moat.
- Giving many generic suggestions instead of one constraint and one next test.
Connections
- [[wiki/concepts/创业基础框架]] — Timmons opportunity x team x resources
- [[wiki/concepts/创业机会识别]] — opportunity sources, beachhead, TAM/SAM/SOM
- [[wiki/concepts/产品市场契合]] — MVP, retention, payment, referral
- [[wiki/concepts/创业融资]] — runway, LTV/CAC, fundraising stages
- [[wiki/concepts/创业团队建设]] — founder fit, complementary roles, equity rules
- [[wiki/concepts/顶级VC评估框架]] — 5T, TOPSCAN, T2D3
- [[maps/创业知识库]] — entrepreneurship system map
- [[maps/VC与一级投资知识库]] — investor evaluation map
- [[maps/效率思维与模型]] — hypothesis-driven, MECE, cheap tests
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: Mark393295827
- Source: Mark393295827/third-brain-v5-skills
- License: MIT
- Homepage: https://github.com/Mark393295827/third-brain-v5-skills/tree/master
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.