Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
ClaudSkills / Product / agile

Diagramming With Mermaid

Category: Product  ·  Sub-category: agile  ·  Last updated:
Generates and edits Mermaid diagrams with correct syntax across all 19 diagram types including flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, pie charts, quadrant charts, XY charts, Sankey diagrams, mindmaps, timelines, gitgraphs, block diagrams, packet diagrams, architecture diagrams, kanban boards, requirement diagrams, and user journeys. Use when asked to create a diagram, visualize something, make a chart, draw a flowchart, model a database, or any request involving Mermaid syntax. Triggers include "mermaid", "diagram", "flowchart", "sequence diagram", "class diagram", "ER diagram", "gantt", "chart", "visualize", "draw", "graph".
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Generate syntactically correct Mermaid diagrams. Always wrap output in a `mermaid fenced code block.

What this skill does

Diagramming With Mermaid is a community-contributed Claude Code skill in the agile sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/diagramming-with-mermaid/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to create a diagram, visualize something, make a chart, draw a flowchart, model a database, or any request involving Mermaid syntax. Triggers include "mermaid", "diagram", "flowchart", "sequence diagram", "class diagram", "ER diagram", "gantt", "chart", "visualize", "draw", "graph".

Who uses this skill

The Diagramming With Mermaid Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ 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/diagramming-with-mermaid
curl -L https://claudskills.com/skills/diagramming-with-mermaid/SKILL.md \
  -o ~/.claude/skills/diagramming-with-mermaid/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/diagramming-with-mermaid/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/diagramming-with-mermaid/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\diagramming-with-mermaid\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.

See pricing → Download desktop app

Frequently asked questions

How do I install the Diagramming With Mermaid Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/diagramming-with-mermaid/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Diagramming With Mermaid skill do?
Generates and edits Mermaid diagrams with correct syntax across all 19 diagram types including flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, pie charts, quadrant charts, XY charts, Sankey diagrams, mindmaps, timelines, gitgraphs, block diagrams, packet diagrams, architecture diagrams, kanban boards, requirement diagrams, and user journeys. Use when asked to create a diagram, visualize something, make a chart, draw a flowchart, model a database, or any request involving Mermaid syntax. Triggers include "mermaid", "diagram", "flowchart", "sequence diagram", "class diagram", "ER diagram", "gantt", "chart", "visualize", "draw", "graph".
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 Diagramming With Mermaid skill?
Use Diagramming With Mermaid when your Claude Code task falls under the Product category — specifically in the agile 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 Diagramming With Mermaid" or describe the task and let Claude pick). Browse related skills at /category/product/.
What is a Claude Code skill and how does the Diagramming With Mermaid 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. Diagramming With Mermaid is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product 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
tjmgregory. (2026). Diagramming With Mermaid [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/diagramming-with-mermaid/
BibTeX
@misc{diagramming-with-mermaid-2026,
  author    = {tjmgregory},
  title     = {Diagramming With Mermaid [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/diagramming-with-mermaid/}
}

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
[![ClaudSkills](https://claudskills.com/badge/diagramming-with-mermaid.svg)](https://claudskills.com/skills/diagramming-with-mermaid/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/diagramming-with-mermaid.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/diagramming-with-mermaid.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Diagramming With Mermaid"></iframe>

Security scan

Grade A · scanned 2026-06-13 — 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 ›

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/diagramming-with-mermaid/#security)

Free. No spam. Unsubscribe in one click.

More Product skills

Browse all Product skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Product skills → Top 100 skills
Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore

Categories

Use cases

Popular tags

Learn

Site