Diagram

What it does

When your agent uses it

• Tasks that involve Diagrams
• Tasks that involve Task management
• Tasks that involve Deep research

Example prompts

• “/diagram”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

1. 1解读图结构（节点、边、标签、类型、分组等）
2. 2映射到对应的图表类型模板数据结构
3. 3渲染为设计规范统一的 PNG
4. 4替换原始文本块为图片引用

What it can do on your machine

Read from SKILL.md and the folder at commit 2d4fa49. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/, which the agent can run.

  Shell commands in SKILL.md call:

  • python

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Diagram loads about 2.7k tokens when it runs, and up to ~23k if it reads all its reference files. Until then it costs about 109 tokens; SKILL.md has 643 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~109

When it runs · the whole SKILL.md, loaded when a task matches

~2.7k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~23k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from 312362115/claude at commit 2d4fa49, republished under its MIT licence (© 312362115). 643 words, ~2,727 tokens.

name

diagram

description

专业图表生成技能：根据需求自动选择合适的图表类型，生成符合设计规范的 PNG 图表。 覆盖 29 种图表：结构图（流程图、泳道图、时序图、架构图、状态图、ER图、类图、思维导图、甘特图、Kanban、Git Graph 等） 和统计图（柱状图、折线图、饼图、雷达图、热力图、散点图、桑基图、漏斗图、瀑布图、矩形树图、柱线混合图等）。 统一工具：HTML/SVG + 内联 JS 布局计算。ER/类图使用 ELKjs 布局引擎。 所有图表遵循统一的设计规范（配色/字体/组件/间距），风格现代简洁。 支持三种输出：PNG（默认）、HTML（富文档嵌入）、DSL（Mermaid 文本，嵌入 MD 文档）。 触发词：画图、画一个、生成图表、流程图、架构图、时序图、柱状图、对比图、关系图。 即使用户没有说"画图"，只要需求中涉及可视化展示（流程、架构、数据对比、关系），都应触发此技能。 被 deep-research 等其他技能调用时，同样遵循本规范生成图表。

version

1.7.0

last_updated

2026-05-07

repository

https://github.com/312362115/claude

changelog

skills/diagram/CHANGELOG.md

1. 读取专属规范 → 了解数据结构和布局规则
2. 定义数据（nodes/edges/steps/tables 等）
3. 计算布局坐标（ELKjs 或手动）
4. 渲染 SVG（节点 → 连线 → 标签，按层级顺序）
5. 写入 HTML 文件（含内联 JS + CSS）
6. 用 capture.py 截图 → PNG（禁止手动调用 Playwright）

<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<style>
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    font-family: -apple-system, system-ui, 'PingFang SC', sans-serif;
    background: #ffffff;
    padding: 24px;
    display: inline-block;  /* 关键：画布收缩包裹内容 */
  }
</style>
<!-- ELKjs 仅在 ER/类图/状态图中引入 -->
<script src="lib/elk.bundled.js"></script>
</head>
<body>
<svg id="canvas"></svg>
<script>
(function() {
  // 1. 数据定义（title, subtitle, nodes, edges 等）
  // 2. 主题定义（colors, fonts, spacing）
  // 3. 工具函数（el, measureText）
  // 4. 布局计算（ELKjs 或手动）
  // 5. 渲染（背景层 → 连线层 → 节点层 → 标签层）
})();
</script>
</body>
</html>

// 标题可选的标准写法
var TITLE_AREA_H = title ? 52 : 0;

// 渲染时条件判断
if (title) {
  nodeGroup.appendChild(el('text', { ... })).textContent = title;
  if (subtitle) nodeGroup.appendChild(el('text', { ... })).textContent = subtitle;
}

用户：画一个用户登录的流程图，输出 mermaid

输出：
` ` `mermaid
flowchart TD
    A[用户访问登录页] --> B{已有账号?}
    B -->|是| C[输入用户名密码]
    B -->|否| D[跳转注册页]
    C --> E{验证通过?}
    E -->|是| F[跳转首页]
    E -->|否| G[提示错误]
    G --> C
` ` `

用户：画一个微服务架构图，输出 mermaid

输出：
` ` `mermaid
flowchart TD
    subgraph 网关层
        nginx[Nginx 负载均衡] --> api_gw[API Gateway]
    end
    subgraph 服务层
        user_svc[用户服务]
        order_svc[订单服务]
        pay_svc[支付服务]
    end
    subgraph 数据层
        mysql[(MySQL)]
        redis[(Redis)]
    end
    api_gw --> user_svc & order_svc & pay_svc
    user_svc --> mysql
    order_svc --> mysql
    pay_svc --> redis
` ` `

# 结构图：HTML → PNG
python ~/.claude/skills/diagram/scripts/capture.py <HTML文件> <输出路径>.png

# 结构图：HTML → 自包含 HTML
python ~/.claude/skills/diagram/scripts/capture.py <HTML文件> <输出路径>.html -f html

# 统计图：JSON → PNG（bridge.py 内部自动截图）
python ~/.claude/skills/diagram/scripts/bridge.py -c <配置>.json -o <输出路径>.png

# 统计图：JSON → 自包含 HTML
python ~/.claude/skills/diagram/scripts/bridge.py -c <配置>.json -o <输出路径>.html -f html

© 312362115, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 108 other files (scripts, references) in skills/diagram of 312362115/claude.

• SKILL.md
• CHANGELOG.md
• VERSION
• references/design-system.md
• references/diagram-utils.md
• references/diagrams/architecture.md
• references/diagrams/bar-chart.md
• references/diagrams/c4.md
• references/diagrams/class.md
• references/diagrams/dataflow.md
• references/diagrams/decision-tree.md
• references/diagrams/er.md
• references/diagrams/fishbone.md
• references/diagrams/flowchart.md
• references/diagrams/gantt.md
• references/diagrams/heatmap.md
• references/diagrams/journey.md
• references/diagrams/line-chart.md
• references/diagrams/mindmap.md
• … and 90 more

Open the folder on GitHubat commit 2d4fa49