Diagram Builder
Draw business diagrams as real .svg files — process flows, client onboarding journeys, swimlanes, decision trees, org charts, timelines, journey maps, quadrants — in your brand colors, sized so the text actually fits its box, with every step taken from what you said and anything you did not say left as a marked placeholder instead of invented. Use when someone wants a diagram, flowchart, process map, swimlane, org chart, decision tree, journey map, timeline, or 2x2 drawn, redrawn, or turned into a file, including asks like "map our client onboarding" or "turn our intake process into a flowchart for our services page". Do NOT use for a chart of values — a bar, line, pie, or trend chart — and do NOT use for an interactive, exploratory, or in-conversation visual: that is the built-in Visualize skill's job, and you cannot invoke it on the user's behalf. Do NOT use for a page mockup or wireframe, a photo or illustration, a logo or favicon, a slide deck, a PDF, or prose; those are separate skills.
Security AStatic scan found no risk patternsHow grading works ›
What this skill does
Diagram Builder is a community-contributed Claude Code skill in the threat-hunting sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/diagram-builder/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when someone wants a diagram, flowchart, process map, swimlane, org chart, decision tree, journey map, timeline, or 2x2 drawn, redrawn, or turned into a file, including asks like "map our client onboarding" or "turn our intake process into a flowchart for our services page". Do NOT use for a chart of values — a bar, line, pie, or trend chart — and do NOT use for an interactive, exploratory, or in-conversation visual: that is the built-in Visualize skill's job, and you cannot invoke it on the user's behalf.
Who uses this skill
The Diagram Builder Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/diagram-builder
curl -L https://claudskills.com/skills/diagram-builder/SKILL.md \
-o ~/.claude/skills/diagram-builder/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/diagram-builder/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/diagram-builder/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\diagram-builder\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Diagram Builder Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/diagram-builder/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Diagram Builder skill do?
Draw business diagrams as real .svg files — process flows, client onboarding journeys, swimlanes, decision trees, org charts, timelines, journey maps, quadrants — in your brand colors, sized so the text actually fits its box, with every step taken from what you said and anything you did not say left as a marked placeholder instead of invented. Use when someone wants a diagram, flowchart, process map, swimlane, org chart, decision tree, journey map, timeline, or 2x2 drawn, redrawn, or turned into a file, including asks like "map our client onboarding" or "turn our intake process into a flowchart for our services page". Do NOT use for a chart of values — a bar, line, pie, or trend chart — and do NOT use for an interactive, exploratory, or in-conversation visual: that is the built-in Visualize skill's job, and you cannot invoke it on the user's behalf. Do NOT use for a page mockup or wireframe, a photo or illustration, a logo or favicon, a slide deck, a PDF, or prose; those are separate skills.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Diagram Builder skill?
Use Diagram Builder when your Claude Code task falls under the Security category — specifically in the threat hunting area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Diagram Builder" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Diagram Builder skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Diagram Builder is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
b12io. (2026). Diagram Builder [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/diagram-builder/
BibTeX
@misc{diagram-builder-2026,
author = {b12io},
title = {Diagram Builder [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/diagram-builder/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/diagram-builder/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/diagram-builder.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/diagram-builder.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Diagram Builder"></iframe>
Security scan
Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/diagram-builder/#security)
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