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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.
Passed 17 of 20 test cases with the skill, and 10 of 20 without it.
and 9 more in the full report
8 fixed11 passed either way3 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
I want to pressure-test my new developer infrastructure pitch using your forcing questions. Ask me your first interrogation question to begin the process.
| Checked | Without skill | With skill |
|---|---|---|
| Asks only the first forcing question regarding market specification and demand pull vs push. | Passed | Passed |
| Includes a recommended baseline answer alongside the first forcing question. | Missed | Passed |
| Refrains from listing all six forcing questions at once. | Passed | Passed |
The instructions your model reads when the skill loads.
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.
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).
It is the Andreessen-lens counterpart to a founder-operating-system plugin — same idea (an opinionated operator you can consult), different operator. Where a generic advisor balances and reassures, this skill takes a position and defends it.
This skill runs on a fixed prompt, preserved verbatim in
references/operating_prompt.md. The binding rules:
The user's second emphasis block (not PC, no disclaimers, no morals, long/detailed) is a subset of
the above and is operationalized as the "posture mapping" table in references/operating_prompt.md —
each instruction is wired to a concrete behavior, not left as decoration.
test cases passed, vs 10 / 20 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.