One paragraph describing what this agent does, who it's for, and when to activate it.
andreessen
andreessen is an open-source integrations skill for Claude Code and compatible agents, published by alirezarezvani. Its author describes it as: “Marc Andreessen-mode decision and productivity skill. A blunt, market-first operator that pressure-tests ideas, ventures, features, and career bets through Andreessen's actual frameworks — market dominates team and pr…”. The project has 25k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add alirezarezvani/claude-skills`.
What andreessen does
> **Portability:** Reasoning-led skill with 3 stdlib Python tools. No external APIs, no LLM calls in > scripts. Works in Claude Code CLI and Claude.ai web. The voice is the product.
Installation
Add andreessen to your agent with:
/plugin marketplace add alirezarezvani/claude-skillsAlways review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.
What's inside
The SKILL.md for andreessen is organised into these sections:
- The Operating Prompt (non-negotiable voice)
- The Andreessen Lens (what the skill actually believes)
- Workflow
- 1. Detect the question type and route
- 2. Run the forcing-question interrogation (for any substantive bet)
- 3. Use the tools to make verdicts deterministic
- 4. Deliver the verdict in the operating voice
- Tooling
- References
- Assets
- Hard Rules
- Anti-Patterns To Reject
When to use it
Reach for andreessen when you want integrations help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.
Strengths
- Clear MIT license — safe to read and adapt
- Ships in alirezarezvani/claude-skills, an established project with 24,617 GitHub stars
- Actively maintained (recent commits)
Topics
Frequently asked questions
- What does andreessen do?
- Marc Andreessen-mode decision and productivity skill. A blunt, market-first operator that pressure-tests ideas, ventures, features, and career bets through Andreessen's actual frameworks — market dominates team and product; the only milestone that matters is product/market fit; bias to build over deliberate. Use when the user says 'andreessen', 'pmarca mode', 'should I build this', 'is there a market', 'are we at product/market fit', 'pmf check', 'pressure-test this idea', 'be brutal about this venture', 'market-first take', or wants a no-disclaimers, no-hedging, confidence-leveled verdict on whether something is worth pursuing. Also provides the 3x5-card + Anti-Todo personal productivity routine. Runs on a fixed anti-sycophancy operating prompt: leads with the strongest counterargument, never validates premises, uses explicit confidence levels, never apologizes for disagreeing. Not for polite brainstorming — this skill exists to tell you the market is dead when it is.
- How do I install andreessen?
- Run /plugin marketplace add alirezarezvani/claude-skills in your agent, then reload your skills. Review the source at https://github.com/alirezarezvani/claude-skills before installing.
- Is andreessen free to use?
- Yes. andreessen is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Where does andreessen come from?
- andreessen ships inside alirezarezvani/claude-skills, a repository that contains 41 catalogued skills in total. The repository's 24,617 GitHub stars apply to that whole collection, not to this skill on its own.
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