topskills

mermaid-diagrams

Mermaid diagrams from prose with self-validating syntax. Sequence, flowchart, ER, state.

Score 0(?)CommunityAll surfacesby Agents365-aiSource
Verified for:

Install

$ git clone https://github.com/Agents365-ai/mermaid-skill.git ~/.claude/skills/mermaid-skill
Install without a terminal (Claude.ai)

mermaid-diagrams is verified on Claude.ai, so you can install it from the browser — no command line. It then runs in Claude’s server-side sandbox, which has no shell and no access to your computer’s files: you upload what it should read and download what it produces.

  1. 1Turn on code execution. On claude.ai, open Settings → Capabilities and enable "Code execution and file creation". Skills that produce files need it, and it is off for some accounts by default.
  2. 2Download the skill folder. Follow the source link on the skill page to its repository and download the skill’s folder. Read the SKILL.md before you install it — it is plain text, and it is the instructions the agent will follow.
  3. 3Zip it and upload. Compress the folder into a .zip, then on claude.ai go to Customize → Skills and upload it. Skills you upload are private to your account.
  4. 4Ask for the work. Start a normal conversation and describe the job in your own words. The skill loads itself when your request matches what its description covers — you never invoke it by name.

Anthropic documents this flow in Use skills in Claude. See every Skill that installs this way.

Best for

In-doc diagrams (GitHub READMEs, Notion pages) where Mermaid renders inline.

About this skill

Mermaid diagram syntax: sequence, flowchart, ER, state, gantt, class. Self-validating output.

MermaidDiagramsMarkdown

Score breakdown

Score breakdown

rubric 1.0
Install count
0/20
Provenance
8.3/15
GitHub stars
0/15
Recency
8.5/10
Compatibility
4/10
Documentation depth
6.5/10
Install ergonomics
10/10
License
5/5
Verification freshness
4.3/5

Composite 0–100 score derived from 9 verifiable signals. See the rubric →

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Ranked #7 in Diagrams

Publish the ranking in your README. The badge reads the live score, so it updates when the ranking does.

mermaid-diagrams — ranked #7 in Diagrams on Top Agent Skills
Markdown
[![mermaid-diagrams — ranked #7 in Diagrams on Top Agent Skills](https://top-agent-skills.com/badge/mermaid-diagrams.svg)](https://top-agent-skills.com/skill/mermaid-diagrams)
HTML
<a href="https://top-agent-skills.com/skill/mermaid-diagrams"><img src="https://top-agent-skills.com/badge/mermaid-diagrams.svg" alt="mermaid-diagrams — ranked #7 in Diagrams on Top Agent Skills"></a>

Head-to-head

mermaid-diagrams vs the alternatives

Skill FAQ

About mermaid-diagrams

What is the mermaid-diagrams skill?

Mermaid diagram syntax: sequence, flowchart, ER, state, gantt, class. Self-validating output.

Which agents does mermaid-diagrams work with?

Claude Code, Claude.ai (web app), Cursor.

How do I install mermaid-diagrams?

Run `git clone https://github.com/Agents365-ai/mermaid-skill.git ~/.claude/skills/mermaid-skill` for Claude Code. See the install panel for per-agent commands.

Is mermaid-diagrams free to use?

Yes — mermaid-diagrams is open source (MIT).

Who maintains mermaid-diagrams?

mermaid-diagrams is published by Agents365-ai and was last updated on 2026-07-03.

What is mermaid-diagrams best for?

In-doc diagrams (GitHub READMEs, Notion pages) where Mermaid renders inline.