mermaid-graph-writer

mermaid-graph-writer is a plugin for Claude Code from curiositech/some_claude_skills. Its manifest loads nothing; the 1 skill it bundles cost 111 tokens per session together, scanned A, original, MIT.

A Mermaid diagram writing assistant for creating diagrams from descriptions. Mermaid is a text format for diagrams such as flowcharts, sequence diagrams, state diagrams, and database relationship diagrams.

In plain words
What is it for?
Use it to create flowcharts, timelines, mind maps, Gantt charts, state machines, sequence diagrams, and ER diagrams in Mermaid.
Why use it?
It removes the need to remember Mermaid syntax and helps structure different kinds of diagrams. It is for writing the diagram text, not turning it into an image.

Plugin for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to create flowcharts, timelines, mind maps, Gantt charts, state machines, sequence diagrams, and ER diagrams in Mermaid.

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Install in Claude Code
/plugin marketplace add curiositech/some_claude_skills/plugin install mermaid-graph-writer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/curiositech/some_claude_skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mermaid-graph-writer

README.md
[![agentmods](https://agentmods.dev/badge/plugins/curiositech/some_claude_skills/mermaid-graph-writer/github.svg)](https://agentmods.dev/plugins/curiositech/some_claude_skills/mermaid-graph-writer)
Your own site
<a href="https://agentmods.dev/plugins/curiositech/some_claude_skills/mermaid-graph-writer"><img src="https://agentmods.dev/badge/plugins/curiositech/some_claude_skills/mermaid-graph-writer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for mermaid-graph-writer

Your own site · 80×15
<a href="https://agentmods.dev/plugins/curiositech/some_claude_skills/mermaid-graph-writer"><img src="https://agentmods.dev/badge/plugins/curiositech/some_claude_skills/mermaid-graph-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill cost 111 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

mermaid-graph-writer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/mermaid-graph-writer/.claude-plugin/plugin.json · 5 lines

What it actually says

{
  "name": "mermaid-graph-writer",
  "description": "Writes precise, well-structured Mermaid diagrams for any visualization need. Use when creating flowcharts, sequence diagrams, state machines, ER models, timelines, mindmaps, Gantt charts, or any other Mermaid-supported diagram type. Activate on \"mermaid\", \"diagram\", \"flowchart\", \"sequence diagram\", \"state diagram\", \"ER diagram\", \"visualize\", \"draw graph\". NOT for rendering/exporting Mermaid to images (use mermaid-graph-renderer), ASCII art, or GUI-based design tools."
}
Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 111 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 5 lines scan A fc80f9b03c42

Subscribe to this mod's changes

mermaid-graph-writer is a plugin published in the GitHub repository curiositech/some_claude_skills (216 stars, last pushed 2d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-06.

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