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andreessen

Evaluate ventures with market-first scoring, PMF signal checks, and a 3x5-card daily routine.

25.3k|3.6k|Updated Oct 19, 2025
Search Tags:#decision framework#product-market-fit#startup evaluation#venture scoring#Productivity#market-first#anti-todo
One-click install
npx skills add https://github.com/alirezarezvani/claude-skills --skill andreessen
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: andreessen
Source: https://github.com/alirezarezvani/claude-skills/tree/main/productivity/andreessen/skills/andreessen
Command: npx skills add https://github.com/alirezarezvani/claude-skills --skill andreessen

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

Founders and operators routinely over-weight team and product while under-interrogating the market, and daily to-do lists grow unbounded without real prioritization. This Skill pressure-tests ideas, ventures, features, and career bets through Marc Andreessen's documented frameworks and issues deterministic verdicts instead of hedged advice.

Core Features & Use Cases

  • Market-First Evaluation: Scores market (size, growth, timing, pull), team, and product with market weighted at 0.55 and a sub-4 market as a hard kill gate, returning BUILD-POUR-FUEL, MARKET-FIRST-DERISK, or KILL-OR-REPICK-MARKET verdicts.
  • Product/Market Fit Scoring: Combines Andreessen's qualitative felt-signals (retention, demand, organic growth, frequency) with the Sean Ellis 40% gate to return BEFORE-PMF, APPROACHING-PMF, or AFTER-PMF.
  • 3x5 Card + Anti-Todo Routine: Enforces a hard cap of 3-5 daily must-dos and logs accomplishments on an Anti-Todo list, with JSON state stored per day.
  • Use Case: A founder debating whether to build an AI compliance tool runs the market evaluator, gets a MARKET-FIRST-DERISK verdict because pull scored 3, and is directed to run a paid pilot before writing more code.

Quick Start

Ask the agent to pressure-test your startup idea with a market-first verdict, or run python scripts/market_first_evaluator.py with your six 0-10 scores to get a deterministic verdict.

Frequently Asked Questions about andreessen

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I evaluate whether a startup idea is worth building?▼

Run market_first_evaluator.py with six 0-10 scores for market size, growth, timing, pull, team, and product. The script weights market at 0.55 and returns BUILD-POUR-FUEL, MARKET-FIRST-DERISK, or KILL-OR-REPICK-MARKET, with a sub-4 market score acting as a hard kill gate.

How do I check if my product has product/market fit?▼

Use pmf_signal_scorer.py with your Sean Ellis 'very disappointed' percentage plus 0-10 scores for retention, organic growth, demand, and frequency. It returns BEFORE-PMF, APPROACHING-PMF, or AFTER-PMF, treating the 40% Ellis threshold as a gate alongside the composite signal.

What is the 3x5 card and Anti-Todo list productivity method?▼

It is Marc Andreessen's 2007 daily routine: the front of an index card holds 3-5 must-do items (hard-capped), and the back logs everything you actually finish during the day. The anti_todo_card.py script enforces the cap and stores each day's card as a JSON file.

Does this skill require external APIs or Python packages?▼

No. All three scripts use only the Python standard library with no LLM calls, network access, or third-party dependencies. They run in any environment with Python 3 and support --sample and --output-format json flags.

Why does a strong team score not override a weak market score?▼

The evaluator encodes Andreessen's thesis that market wins over team and product, so a market cluster below 4.0 forces a KILL-OR-REPICK-MARKET verdict regardless of team or product scores. This is deliberate, not a bug in the weighting.

When should I not use the market-first evaluation approach?▼

The approach is less suited to product-led categories where the market does not visibly exist until the product creates it, such as some consumer social or developer tools. The skill's own references steel-man this limitation and note timing is the hardest market sub-factor to score.

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