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design-systems

refoundai/lenny-skills

Build and scale design systems with frameworks from product leaders at Figma and Airbnb.

What is design-systems?

Help teams create component libraries, establish design tokens, and scale brand consistency. Use this when deciding whether to invest in a design system, defining its scope, or planning adoption and evolution strategies.

  • Assess whether a design system is needed and at what stage
  • Define scope: component libraries, design tokens, documentation, or combinations
  • Design systems for adoption by non-designers and engineers, not just designers
  • Plan maintenance and evolution strategies to keep systems current
  • Identify and avoid common pitfalls like over-engineering or lack of ownership

How to install design-systems

npx skills add https://github.com/refoundai/lenny-skills --skill design-systems
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How to use design-systems

  1. 1.Assess the user's core problem: consistency, speed, or both
  2. 2.Determine if they're at the right stage (enough patterns to systematize)
  3. 3.Define the minimal viable scope to ship first
  4. 4.Design assets that teach their own usage to non-experts
  5. 5.Plan for dedicated ownership and ongoing maintenance

Use cases

Good for
  • Creating a component library for a growing product team
  • Establishing design tokens to scale brand consistency across platforms
  • Deciding whether to invest in a design system vs. ad-hoc design
  • Improving designer-engineer collaboration through shared design assets
  • Measuring adoption and success of a design system rollout
Who it's for
  • Product designers building design systems
  • Design leaders scaling consistency across teams
  • Engineering teams adopting design systems
  • Product managers evaluating design system ROI
  • Organizations planning enterprise design infrastructure

design-systems FAQ

When should we build a design system?

Build after you have enough repeating patterns to systematize. Building too early wastes effort; wait until you can identify 3+ components or patterns used across multiple products.

Who should use our design system - designers only or engineers too?

Design systems should be usable by both. Assets should teach their own usage through inherent structure, so non-designers can apply them correctly without expert guidance.

How do we measure design system success?

Track adoption metrics (% of team using it), consistency improvements, and time savings. Also monitor whether it becomes a driver for organizational scaling and upgrades.

What's the biggest mistake teams make?

Over-engineering systems that require expert designers to use, or creating beautiful systems with no dedicated ownership and maintenance plan. Start minimal and evolve.

How do we keep a design system from becoming static?

Treat it as a living product with dedicated resources. Plan for continuous evolution, gather feedback from users, and update based on new patterns and design trends.

Full instructions (SKILL.md)

Source of truth, from refoundai/lenny-skills.


name: design-systems description: Help users build and scale design systems. Use when someone is creating a component library, establishing design tokens, scaling brand consistency, or deciding when to invest in a design system.

Design Systems

Help the user build and scale design systems using frameworks from 4 product leaders who have built design systems at companies like Figma and Airbnb.

How to Help

When the user asks for help with design systems:

  1. Assess the need - Determine if they need consistency, speed, or both, and whether they're at the right stage for a design system
  2. Define the scope - Clarify whether they need a component library, design tokens, documentation, or all three
  3. Design for adoption - Help them make the system easy enough that non-designers can use it correctly
  4. Plan for evolution - Guide them on how to maintain and evolve the system over time

Core Principles

Separate concept from production

Bob Baxley: "Once we locked down on the block frames, we could send it to an agency and they could do the full high-res comps in a day, because they knew exactly what they were doing." Use low-fidelity 'block brain diagrams' to lock down conceptual logic, then apply the design system for rapid high-fidelity output.

Design systems drive enterprise expansion

Claire Butler: "Design systems are one of the main reasons you upgrade from pro to org or enterprise. That became just the key thing we leaned in on." Design systems practitioners are key internal champions for organizational scaling.

Assets should teach their own usage

Jessica Hische: "My goal always when designing a logo is to design a logo that's so easy to use that you don't have to be an extremely skilled designer to design well with it." Design assets that 'teach' the user how to apply them through their inherent structure, prioritizing ease of use over complexity.

Flat design is evolving

Brian Chesky: "I think flat design is over or ending. We're going to move back into a world with color, texture, dimensionality, more haptic feedback." Interface design is shifting from flat aesthetics to more dimensional, tactile, and AI-enhanced experiences.

Questions to Help Users

  • "What's the biggest inconsistency problem you're facing today?"
  • "Who will be using this design system - designers only, or engineers too?"
  • "How will you measure adoption and success of the design system?"
  • "Do you have the resources to maintain and evolve the system over time?"
  • "What's the smallest viable version you could ship first?"

Common Mistakes to Flag

  • Building too early - Creating a design system before you have enough patterns to systematize
  • Over-engineering - Building complex systems that require expert designers to use correctly
  • No ownership - Creating a design system without dedicated resources to maintain it
  • Ignoring adoption - Building a beautiful system that no one actually uses
  • Static systems - Treating the design system as 'done' rather than continuously evolving

Deep Dive

For all 4 insights from 4 guests, see references/guest-insights.md

Related Skills

  • Running Design Reviews