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Markdown + Mermaid Writing Standard

Makes Markdown with embedded Mermaid diagrams the default, git-friendly format for every document you produce.

Docs & OfficeBeginner★ 33,030⑂ 3,248AI score 10/10Last updated: Aug 9, 2026

What it does

  • Enforces Markdown + Mermaid as the canonical format for reports, analyses, READMEs, decision records and manuscripts.
  • Points to reference guides for 24 Mermaid diagram types (flowchart, sequence, ER, gantt, timeline, radar, sankey, C4 and more) with copy-paste templates.
  • Starts documents from 9 templates: research paper, ADR, issue, pull request, status report, how-to guide, presentation, kanban, project docs.
  • Applies concrete style rules: one H1, emoji on H2 only, footnote citations [^N], tables over prose, mandatory accTitle/accDescr, no %%{init} and no inline style.
  • Treats Python charts and AI images as optional Phase 2/3 output while the text diagram stays the source of truth.

Who it's for

  • Developers and researchers who keep docs in git and want diffable diagrams.
  • Anyone regularly drawing experimental workflows, data pipelines or system architectures.
  • Technical writers and PMs standardizing team documentation style.

Example uses

  1. "Add a diagram for this experiment pipeline" → the right diagram type is chosen (not a default flowchart) with accessibility annotations included.
  2. "Record this architecture decision" → generated from templates/decision_record.md as a proper ADR.
  3. "Fill in the figure placeholders in my draft" → workflow/relationship figures become Mermaid; only photorealistic figures get handed to an image-generation skill.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/K-Dense-AI/scientific-agent-skills/HEAD/skills/markdown-mermaid-writing/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/markdown-mermaid-writing folder from the GitHub repo K-Dense-AI/scientific-agent-skills into my ~/.claude/skills/markdown-mermaid-writing/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/K-Dense-AI/scientific-agent-skills.git && mkdir -p ~/.claude/skills && cp -r scientific-agent-skills/skills/markdown-mermaid-writing ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/K-Dense-AI/scientific-agent-skills.git
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy the whole skill directory (the references/ and templates/ files are required): cp -r scientific-agent-skills/skills/markdown-mermaid-writing ~/.claude/skills/
  5. Verify ~/.claude/skills/markdown-mermaid-writing/ contains SKILL.md, references/, templates/ and assets/.
  6. Restart Claude Code, then ask something like "write this report in Markdown with Mermaid diagrams" to trigger the skill.
View source on GitHub ↗License: MIT