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.
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.
npx skills add chromium/chromium --skill figma-to-webuigit clone --depth 1 https://github.com/chromium/chromiumWrote 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.
[](https://agentmods.dev/skills/chromium/chromium/figma-to-webui)<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.
<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>- Snyk warn
- NVIDIA SkillSpector pass
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.
| Model | Per session | Once 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 |
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.
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):
- Read the Figma design: Extract information from the Figma design using
the
figma-contextskill. - Reference Existing Component Specs: Map Figma components in the Figma
design to Chromium WebUI components using the
chrome-componentsskill. - Reference Token & Font Mapping: Translate Figma variables to equivalent
Chromium CSS variables using the
chrome-tokensskill.
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 pixelflex-basisor fixedwidth. This ensures responsive layouts that cleanly adapt to parent padding, gap, and sibling sizes. - With fixed width, use CSS
widthproperty instead offlex-basis.
- With auto-layout
- 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.
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.
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.
- 1mo ago Changed · -67 lines 3c2481a8993c
- 1mo ago First seen · 177 lines · 44 tokens per session scan A 9b43eb256f2f
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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