Two design skills · both proven

brainstorming vs frontend-design

Both skills were run through Claude twice: once on a fixed brief without the skill, once with it. The briefs differ because each is written for the job the skill claims to do, so compare each skill against its own baseline, then decide which difference matters for your work.

brainstorming

You MUST use this before any creative work - creating features, building components, adding functionality, modifying behavior, or planning anything new, in software or out of it (a talk, a business, a renovation).

Category: Design
Source: obra/superpowers
License: MIT
Proof model: claude-opus-5-5
Brief: “A small bakery with one location wants more weekday morning customers. They have a loyal weekend crowd, an Instagram account with 2,000 followers, and no budget for paid ads. Work through this with me and produce the result as a single HTML page: the questions you would ask, the ideas you considered, the three you recommend with how to test each one in two weeks, and what you would measure.”
Skill commit: b739a8a

Without the skillWith brainstorming

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Without, runWith brainstorming, run3 independent runs per side, none selected by hand.

Download the with-skill page

frontend-design

Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.

Category: Design
Source: anthropics/skills
License: Not stated
Proof model: claude-opus-5-5
Brief: “Build the marketing landing page for Halcyon, a calm AI calendar app for busy founders. Include a hero with a product mockup of the app, a short row of customer logos, three feature sections that each show the product, a customer quote, a pricing teaser, and a footer. Draw any illustrations or product shots with inline SVG and CSS.”
Skill commit: dbd4588

Without the skillWith frontend-design

⇆

Without, runWith frontend-design, run3 independent runs per side, none selected by hand.

Download the with-skill page

We don’t pick a winner for you: the pages are the evidence. Both proofs can be repeated with the brief, model and commit shown above. See alternatives to brainstorming or alternatives to frontend-design.