Pixel-Perfect UI Image to Code Agent Skill

Converts UI screenshots and design mockups into pixel-perfect 750px code with manifest-driven transparent asset slicing.

Context cost
7.6k tokensestimated from the bundle, loaded when it triggers
Bundle
8 files · 48.2 kB4 scripts among them — read before you run
Licence
not declarednone named by its author
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

像素级 750px 图片转代码与切图工作流。当 Codex 需要把当前选中的 UI 图片、截图、App/Web 设计稿、Figma 图片导出稿或设计长图转换为代码,并输出独立透明 PNG 切图资源时使用。适用于严格 1:1 等比例还原、画板宽度精确 750px、禁止自动排版优化、文本可编辑、简单图形原生矢量/代码化、图标和位图独立透明 PNG 提取,以及按矢量层、文本层、位图/图标切图三类模块独立验收的任务。

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

design
Filed under

Design & Media

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md17.7 kB · preview
--- name: yueban-image-to-code ---
6# Yueban Image To Code
7
8## 目标
9
10把用户提供或当前选中的 UI 图片还原为代码,并导出必要的独立切图资源。
11
12原图就是视觉合同。不要把它重新设计成“更合理”的界面,不要做排版优化,不要主观调整间距。必须先按 750px 宽度等比归一化,再按原图元素的位置、比例、层级、颜色、透明度和样式进行还原。
13
14## 最高优先级规则
15
16当用户要求“严格等比例缩放至画板宽度精确 750px”时,这条规则高于所有常规前端、设计和响应式建议。
17
18- 整体画板宽度必须精确为 750px。
19- 画板高度必须根据原图宽高比自动计算,不能人为设定或优化。
20- 所有元素必须使用同一个全局缩放比例。
21- 保持所有元素的相对位置、相对大小、层级关系、堆叠顺序、颜色、透明度、阴影、渐变、圆角、描边和样式属性。
22- 禁止自动调整任何元素的位置、大小、对齐、间距、排版或视觉层级。
23- 禁止重新设计、优化布局、合并独立元素、拉伸素材、改变颜色或简化效果。
24- 禁止把图标或位图强行转换为矢量路径。
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md647 words
Files8
Licencenot declared
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈60
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
7,540
on trigger
The instruction body and 7 supporting files, read only when the skill fires.
3.8%
of a 200k window
Ten skills this size would take about 38% of the window before you open a file.
050k100k150k200k context window

7.6k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

8 files, 48.2 kB on disk. Mostly text — the instructions the model reads — with 4 scripts in it that your client would run only if the instructions tell it to.

  • SKILL.md17.7 kB
  • README.md4.6 kB
  • agents/openai.yaml0.3 kB
  • references/slicing.md7.8 kB
  • scripts/audit_png_assets.py6.0 kB
  • scripts/compare_images.py3.3 kB
  • scripts/extract_png_asset.py5.8 kB
  • scripts/preview_bboxes.py2.7 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 4 scripts beside the text, so the bundle is 8 files you can review in full before installing.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Pixel-Perfect UI Image to Code · 7.6k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/pixel-perfect-ui-image-to-code/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/pixel-perfect-ui-image-to-code" ] && { [ ! -e .claude/skills/pixel-perfect-ui-image-to-code ] || { mv .claude/skills/pixel-perfect-ui-image-to-code "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/pixel-perfect-ui-image-to-code" .claude/skills/ && echo "Installed .claude/skills/pixel-perfect-ui-image-to-code"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add seminechen/pixel-perfect-ui-image-to-code

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/pixel-perfect-ui-image-to-code/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/pixel-perfect-ui-image-to-code/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/pixel-perfect-ui-image-to-code" ] && { [ ! -e ~/.claude/skills/pixel-perfect-ui-image-to-code ] || { mv ~/.claude/skills/pixel-perfect-ui-image-to-code "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/pixel-perfect-ui-image-to-code" ~/.claude/skills/ && echo "Installed ~/.claude/skills/pixel-perfect-ui-image-to-code" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/pixel-perfect-ui-image-to-code/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as yueban-image-to-code in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, pixel-perfect-ui-image-to-code.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referenceseminechen/pixel-perfect-ui-image-to-code

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

Reviews

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Who wrote it

SE
SemineChen

Publishes on mcprush.

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