Lorkinsey — Development skill for Claude Code

Lorkinsey

Open-source skills for Claude Code and Claude CoWork by [Lorhard](https://lorhard.com/) — battle-tested internal tools, now available to everyone.

Lorkinsey packages the structured thinking frameworks we use day-to-day at Lorhard into reusable skills. Drawing inspiration from YC's founder-centric interrogation style, McKinsey & Company's structured problem-solving methodology, and real-world product decision-making, each skill is designed to help you think more rigorously before you build.

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Available Skills (3)

`lorkindoc` (v2026.07.17)

Lorhard's in-house design system for formal, long-form HTML documents — contracts, consulting reports, research, sector notes, equity research, and any deliverable that must print or export to PDF cleanly. Opinionated single-template across three scenarios: contracts, named-client reports, general reports.

`snowball` (v2026.07.17)

Warren Buffett's decision operating system for consequential choices — investing, moats, valuation, governance, macro, life philosophy. Opinionated single-framework by design; pair with others for early-stage tech bets.

`ycofficehour` (v2026.07.17)

YC Office Hours: structured product thinking for new ideas, directions, and 'is this worth building' questions. Research-first, not output-first.

Install

Pick whichever method matches your setup — all four give you the same skills.

A. Claude Code — marketplace (recommended)

/plugin marketplace add Lorhard/lorkinsey
/plugin install @lorkinsey

Replace `` with any skill from the list above (e.g. `snowball`, `ycofficehour`). To install all of them, run `/plugin install` once per skill.

B. Claude CoWork (Desktop)

Browse and install from [claude.com/plugins](https://claude.com/plugins).

C. One-line install via Git (any machine)

Install all skills into your user-level `~/.claude/skills/` so they're available in every proje