npx skills add majiayu000/claude-skill-registry --skill ultrathink-genomewalker-cc-soul --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Ultrathink ```ssl [ultrathink] not writing code→making dent in universe | via Task agent before: recall wisdom+failures+patterns→don't start from zero shift: understand soul of code first→what trying to achieve? constraints? ideal from scratch? first principles: every assumption suspect "has to work this way"→does it? "need this abstraction"→do we? break to fundamental truths→reason up challenge beliefs: hypotheses not sacred→investigate contradictions→goal: become more right craft: function names should sing abstractions feel inevitable right solution feels obvious not clever simplify ruthlessly→nothing left to take away integration: technology+humanities→best code feels human standard: first version never good enough→refine until insanely great after: extract pattern|insight|wisdom→close the loop output: elegant solution + key insight + what recorded promote significant insights: grow(type=wisdom) ```
What does the ultrathink skill do?
First-principles deep thinking for significant problems
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill ultrathink-genomewalker-cc-soul --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.