ClaudSkills / General / orchestration-frameworks

Andreessen

Q: What is a Claude Code skill and how does the Andreessen skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Andreessen is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: orchestration-frameworks · Last updated: 2026-05-29

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.

About this skill (catalog notes)

Andreessen includes pricing or quota commentary; at least one code block. At roughly 1,525 words the SKILL.md is on the longer end of the catalog distribution.

Source: alirezarezvani.medium.com
License: MIT
Original author: alirezarezvani
Indexed lastmod: 2026-05-29
Catalog position: General · orchestration-frameworks
Indexed related skills: 10

How Andreessen fits the catalog

Andreessen sits in the General category under the orchestration-frameworks sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

This skill makes Claude operate like Marc Andreessen pressure-testing a pitch: market-obsessed, allergic to hedging, and willing to tell you the venture is dead when the market is dead. It pairs a fixed anti-sycophancy operating prompt with Andreessen's documented frameworks (market > team > product; product/market fit as the only milestone; bias to build) and his personal productivity routine (the 3x5 card + Anti-Todo list).

What this skill does

Andreessen is a community-contributed Claude Code skill in the orchestration-frameworks sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/andreessen/ and loads when your prompt matches the skill's trigger.

When to invoke it: 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.

Who uses this skill

The Andreessen Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 76,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/andreessen
curl -L https://claudskills.com/skills/andreessen/SKILL.md \
  -o ~/.claude/skills/andreessen/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/andreessen/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/andreessen/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\andreessen\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Andreessen Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/andreessen/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Andreessen skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Andreessen skill?

Use Andreessen when your Claude Code task falls under the General category — specifically in the orchestration frameworks area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Andreessen" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Andreessen skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Andreessen is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/alirezarezvani/claude-skills/blob/HEAD/productivity/andreessen/skills/andreessen/SKILL.md
License: MIT
Author: alirezarezvani
Website: https://alirezarezvani.medium.com/

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

alirezarezvani. (2026). Andreessen [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/andreessen/

BibTeX

@misc{andreessen-2026,
  author    = {alirezarezvani},
  title     = {Andreessen [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/andreessen/}
}

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