SVG Diagram Generator

What it does

When your agent uses it

• Drawing a system architecture diagram as a standalone SVG
• Visualizing a process flow, decision tree or state machine
• Making a sequence diagram of interactions between services
• Turning uploaded content into a mind map or timeline

Example prompts

• “Draw an architecture diagram of our API gateway, auth service and database.”
• “Make a sequence diagram of the OAuth login flow as an SVG.”
• “Turn these meeting notes into a mind map.”

Workflow steps

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

1. 1Background fill + grid pattern
2. 2Region/group boundaries (dashed outlines)
3. 3Connection arrows and lines
4. 4Opaque masking rects (same position as component boxes, fill="#0f172a")
5. 5Component boxes (semi-transparent fill + stroke)
6. 6Text labels
7. 7Legend (bottom-right or bottom area, outside all boundaries)
8. 8Title block (top-left)

What it can do on your machine

Read from SKILL.md and the folder at commit 1567581. 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/ (TypeScript), which the agent can run.

  Shell commands in SKILL.md call:

  • npx

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

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • w3.org
  • fonts.googleapis.com

  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

SVG Diagram Generator loads about 3.1k tokens when it runs, and up to ~6.3k if it reads all its reference files. Until then it costs about 171 tokens; SKILL.md has 975 words of instructions outside code blocks.

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

~171

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

~3.1k

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

~6.3k

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 JimLiu/baoyu-skills at commit 1567581, republished under its MIT licence (© JimLiu). 975 words, ~3,055 tokens.

name

baoyu-diagram

description

Create professional, dark-themed SVG diagrams of any type — architecture diagrams, flowcharts, sequence diagrams, structural diagrams, mind maps, timelines, illustrative/conceptual diagrams, and more. Use this skill whenever the user asks for any kind of technical or conceptual diagram, visualization of a system, process flow, data flow, component relationship, network topology, decision tree, org chart, state machine, or any visual representation of structure/logic/process. Also trigger when the user says "画个图" "画一个架构图" "diagram" "flowchart" "sequence diagram" "draw me a ..." or uploads content and asks to visualize it. Output is always a standalone .svg file.

version

1.117.3

<style>
  @import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&amp;display=swap');
  text { font-family: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', monospace; }
</style>

<defs>
  <pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse">
    <path d="M 40 0 L 0 0 0 40" fill="none" stroke="#1e293b" stroke-width="0.5"/>
  </pattern>
</defs>
<rect width="100%" height="100%" fill="#0f172a"/>
<rect width="100%" height="100%" fill="url(#grid)"/>

<marker id="arrow" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
  <polygon points="0 0, 10 3.5, 0 7" fill="#64748b"/>
</marker>

<marker id="arrow-cyan" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
  <polygon points="0 0, 10 3.5, 0 7" fill="#22d3ee"/>
</marker>

<marker id="arrow-open" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
  <polyline points="0 0, 10 3.5, 0 7" fill="none" stroke="#64748b" stroke-width="1.5"/>
</marker>

<!-- Mask layer: opaque background to hide arrows -->
<rect x="100" y="100" width="160" height="60" rx="6" fill="#0f172a"/>
<!-- Visual layer: styled component -->
<rect x="100" y="100" width="160" height="60" rx="6" fill="rgba(8,51,68,0.4)" stroke="#22d3ee" stroke-width="1.5"/>
<text x="180" y="125" fill="white" font-size="11" font-weight="600" text-anchor="middle">API Gateway</text>
<text x="180" y="141" fill="#94a3b8" font-size="9" text-anchor="middle">Kong / Nginx</text>

<rect x="X" y="Y" width="160" height="60" rx="6" fill="#0f172a"/>
<rect x="X" y="Y" width="160" height="60" rx="6" fill="FILL" stroke="STROKE" stroke-width="1.5"/>
<text x="CX" y="Y+24" fill="white" font-size="11" font-weight="600" text-anchor="middle">Name</text>
<text x="CX" y="Y+40" fill="#94a3b8" font-size="9" text-anchor="middle">description</text>

<g transform="translate(CX, CY)">
  <polygon points="0,-35 50,0 0,35 -50,0" fill="#0f172a"/>
  <polygon points="0,-35 50,0 0,35 -50,0" fill="rgba(120,53,15,0.3)" stroke="#fbbf24" stroke-width="1.5"/>
  <text y="4" fill="white" font-size="10" font-weight="600" text-anchor="middle">Condition?</text>
</g>

<g transform="translate(X, Y)">
  <rect x="0" y="10" width="120" height="50" rx="2" fill="#0f172a"/>
  <ellipse cx="60" cy="10" rx="60" ry="12" fill="#0f172a"/>
  <ellipse cx="60" cy="60" rx="60" ry="12" fill="#0f172a"/>
  <rect x="0" y="10" width="120" height="50" fill="rgba(76,29,149,0.4)"/>
  <ellipse cx="60" cy="10" rx="60" ry="12" fill="rgba(76,29,149,0.4)" stroke="#a78bfa" stroke-width="1.5"/>
  <ellipse cx="60" cy="60" rx="60" ry="12" fill="rgba(76,29,149,0.4)" stroke="#a78bfa" stroke-width="1.5"/>
  <line x1="0" y1="10" x2="0" y2="60" stroke="#a78bfa" stroke-width="1.5"/>
  <line x1="120" y1="10" x2="120" y2="60" stroke="#a78bfa" stroke-width="1.5"/>
  <text x="60" y="40" fill="white" font-size="11" font-weight="600" text-anchor="middle">PostgreSQL</text>
</g>

<rect x="X" y="Y" width="W" height="H" rx="12" fill="none" stroke="#fbbf24" stroke-width="1" stroke-dasharray="8,4"/>
<text x="X+12" y="Y+16" fill="#fbbf24" font-size="9" font-weight="600">AWS us-east-1</text>

<rect x="X" y="Y" width="W" height="H" rx="8" fill="none" stroke="#fb7185" stroke-width="1" stroke-dasharray="4,4"/>
<text x="X+10" y="Y+14" fill="#fb7185" font-size="8" font-weight="500">VPC / Security Group</text>

${BUN_X} {baseDir}/scripts/main.ts <svg-path> [options]

© JimLiu, 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 5 other files (scripts, references) in skills/baoyu-diagram of JimLiu/baoyu-skills.

• SKILL.md
• references/architecture.md
• references/flowchart.md
• references/sequence.md
• references/structural.md
• scripts/main.ts

Open the folder on GitHubat commit 1567581

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in JimLiu/baoyu-skills, which our catalogue first saw on October 7, 2026.

• guanyang/open-agent-hubskills/baoyu-diagram