figma-to-webui

figma-to-webui is a skill for Claude Code, Codex from chromium/chromium. It costs 44 tokens per session (1,093 once invoked), scanned A, original, BSD-3-Clause.

A code-generation workflow that turns a Figma design frame into Chromium WebUI code. WebUI is Chrome's web-based interface layer, built here with Lit elements and CSS.

In plain words
What is it for?
Use it to create production-oriented WebUI code from a Figma frame URL in the Chromium source repository.
Why use it?
It reduces the manual work of converting a visual design into Chrome's web interface structure and styling. It also helps connect the design to existing components and shared design values.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create production-oriented WebUI code from a Figma frame URL in the Chromium source repository.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/chromium/chromium/figma-to-webui
About the project

Chromium is an open-source web browser project and the official GitHub mirror of its source code. It is used to build and maintain software for browsing the web, with documentation and code for products such as Chrome and Android WebView.

chromium/chromium · 25,140 stars · on GitHub · chromium.googlesource.com

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add chromium/chromium --skill figma-to-webui
Clone the repo
git clone --depth 1 https://github.com/chromium/chromium

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for figma-to-webui

README.md
[![agentmods](https://agentmods.dev/badge/skills/chromium/chromium/figma-to-webui/github.svg)](https://agentmods.dev/skills/chromium/chromium/figma-to-webui)
Your own site
<a href="https://agentmods.dev/skills/chromium/chromium/figma-to-webui"><img src="https://agentmods.dev/badge/skills/chromium/chromium/figma-to-webui/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for figma-to-webui

Your own site · 80×15
<a href="https://agentmods.dev/skills/chromium/chromium/figma-to-webui"><img src="https://agentmods.dev/badge/skills/chromium/chromium/figma-to-webui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,093 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Snyk warn 7 Sept 2026
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.01093
Opus 5.5 $0.00018 $0.00437
Sonnet 5.5 $0.00009 $0.00219
Haiku 4.5 $0.00004 $0.00109

Measured 1mo ago against content hash 3c2481a8993c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

figma-to-webui scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/projects/chrome-design-system/skills/figma-to-webui/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Figma to WebUI: Code Generation

Prerequisites

  • Figma MCP Server: Must be active and configured in the workspace context to fetch designs and metadata.
  • Chromium Repository: This skill should be executed from inside the root directory of the Chromium repository source code (//src/).

If prerequisites are not met, STOP execution and inform the user.


1. Discovery & Context Retrieval

When given a Figma design URL (e.g., https://www.figma.com/design/:fileKey/:fileName?node-id=:nodeId):

  1. Read the Figma design: Extract information from the Figma design using the figma-context skill.
  2. Reference Existing Component Specs: Map Figma components in the Figma design to Chromium WebUI components using the chrome-components skill.
  3. Reference Token & Font Mapping: Translate Figma variables to equivalent Chromium CSS variables using the chrome-tokens skill.

2. Design-to-Code Gap Auditing

Before writing any code, first check if the user already did an audit of this Figma design against production coding standards within the current chat session's recent history (past 5 commands). If not, perform the audit. Incorporate the feedback from this audit into the following code implementation.


3. WebUI Component Implementation

Implement the WebUI code using the webui-code skill.

Guidelines

  • Scope: Focus strictly on building the UI. Do not add functionality beyond what is specified in the Figma mockup. If the Figma mockup includes a window frame or top Chrome frame, disregard these.
  • HTML:
    • Strictly mirror the container and node element hierarchy from Figma. Ensure outer and inner containers maintain their exact nesting relationships. Exception: if a frame contains only one other frame, these frames can be combined; merge their properties.
    • Implement pure UI templates only. Do NOT add interactive event listeners or handlers (e.g., @click, @change, etc.). Bind properties declaratively to pre-populated mock values without mutation handlers.
    • Do NOT add any extra mock elements that are not in the Figma frame.
  • CSS:
    • Typography & Font Fidelity: Carry over all Figma font styles into the WebUI stylesheet.
    • Use WebUI Components As-Is: When using existing WebUI components, DO NOT add custom styling to existing components in order to match the Figma specifications. Use the WebUI components as-is.
    • Clean Flex Layouts (No Hardcoded Flex-Basis): For elements in Figma
      • With auto-layout fill container (filling the remaining space in a flex row or column), use standard CSS flex shorthand (flex: 1) instead of computing or hardcoding static pixel flex-basis or fixed width. This ensures responsive layouts that cleanly adapt to parent padding, gap, and sibling sizes.
      • With fixed width, use CSS width property instead of flex-basis.
    • Strictly Use Figma-to-CSS Token Map: For all Figma variables used in the design, map them to existing Chromium CSS variables using the token mapping catalog. If there is a match, you MUST use it.
  • Output Location: Save the implementation files inside the ./out/<ComponentName> directory, unless specified otherwise.
  • Builds: Do not run any builds.

Read the full file on GitHub · 110 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed · -67 lines 3c2481a8993c
  2. 1mo ago First seen · 177 lines · 44 tokens per session scan A 9b43eb256f2f

Subscribe to this mod's changes

figma-to-webui is a skill published in the GitHub repository chromium/chromium (25,140 stars, last pushed today), licensed BSD-3-Clause. It adds 44 tokens to every session and 1,093 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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