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
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/chromium/chromiumnpx agentmods add skills/chromium/chromium/figma-to-webuiWrote 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 | $0.02067 |
| Opus 5 | $0.00022 | $0.01033 |
| Sonnet 5 | $0.00009 | $0.00413 |
| Haiku 4.5 | $0.00004 | $0.00207 |
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 9d 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 — 177 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):
- Extract Parameters: Extract the
fileKeyand thenodeId(replace hyphens with colons, e.g.54800-5491becomes54800:5491). - Retrieve Design Context: Call
get_design_contextwithfileKeyandnodeIdto fetch the metadata, layout hierarchy, layer styles, and a screenshot of the node. - Reference Existing Component Specs: Look up component spec files for relevant components using the
project-knowledgeskill to map Figma components to Chromium WebUI components. - Reference Token & Font Mapping: Read the Chrome Design System token mapping from the
project-knowledgeskill to translate Figma variables to equivalent Chromium CSS variables (e.g.,desktop/sys/surface-colors/surface-2to--color-sys-surface2), and translate Figma typography styles to equivalent Chromium font families, sizes, weights, and line heights.
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
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.
- Strictly Follow Element Hierarchy: Strictly mirror the container and node element hierarchy exported from the Figma design context (
get_design_context). 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. - Pure UI Only (No Event Listeners): Implement pure UI templates only. Do NOT add interactive event listeners or handlers (e.g.,
@click,@selected-changed,@value-changed,@change, etc.). Bind properties declaratively to pre-populated mock values without mutation handlers. - Output Location: Save the implementation files inside the out/ directory (relative to the skill 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.
- 9d 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 (24,743 stars, last pushed today), licensed BSD-3-Clause. It adds 44 tokens to every session and 2,067 once invoked, about $0.0002 per session on Opus 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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