# mermaid-visualizer

Transforms text into professional Mermaid diagrams. Visualize processes, system architectures, comparisons and hierarchies with built-in syntax error prevention.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 1700 installs · ★ 3663
- Author: axtonliu
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/axtonliu/axton-obsidian-visual-skills/tree/HEAD/mermaid-visualizer/SKILL.md
- Updated: 2026-06-26
- HTML: https://affpapa.org/en/nevibecode/skills/mermaid-visualizer

## What it does

The skill analyzes content and selects the right diagram type: flowchart for processes and algorithms, mindmap for hierarchies, sequence diagram for component interactions, state diagram for lifecycles. It handles vertical and horizontal layouts, multiple detail levels (from simple schemas to detailed annotations), and semantic color coding.

Built-in rules prevent common Mermaid syntax errors: list conflicts in node text, incorrect subgraph naming, references to display names instead of IDs. Automatically formats special characters, arrow types, and multiline text in circular nodes.

Diagrams render in Obsidian, GitHub and other Mermaid-compatible platforms. The structure lets you quickly adapt visualizations for context — from slides to technical docs.

## Requirements
- Works with: Obsidian

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add axtonliu/axton-obsidian-visual-skills --skill mermaid-visualizer -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/mermaid-visualizer/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/mermaid-visualizer/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add axtonliu/axton-obsidian-visual-skills --skill mermaid-visualizer -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/mermaid-visualizer/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add axtonliu/axton-obsidian-visual-skills --skill mermaid-visualizer -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/mermaid-visualizer/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install axtonliu/axton-obsidian-visual-skills mermaid-visualizer
```

2. **Manually: put the files in place**
- File: `.github/skills/mermaid-visualizer/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add axtonliu/axton-obsidian-visual-skills --skill mermaid-visualizer -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/axtonliu/axton-obsidian-visual-skills --path mermaid-visualizer
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/mermaid-visualizer/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add axtonliu/axton-obsidian-visual-skills --skill mermaid-visualizer -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/axtonliu/axton-obsidian-visual-skills/tree/HEAD/mermaid-visualizer/SKILL.md

## When to use it
- convert a process description into a flowchart without syntax errors
- visualize a concept hierarchy or system structure
- create a comparison diagram of two approaches or architectures
- draw interaction sequences between components
- map a lifecycle or state transitions

## Example prompts
- Visualize the order lifecycle from intake to delivery
- Create a microservices architecture diagram with horizontal layout and detailed annotations
- Draw a mindmap for machine learning course structure

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: eff4a6ac3622a7d2.

BEGIN THIRD-PARTY FILE eff4a6ac3622a7d2
```text
---
name: mermaid-visualizer
description: Transform text content into professional Mermaid diagrams for presentations and documentation. Use when users ask to visualize concepts, create flowcharts, or make diagrams from text. Supports process flows, system architectures, comparisons, mindmaps, and more with built-in syntax error prevention.
---

# Mermaid Visualizer

## Overview

Convert text content into clean, professional Mermaid diagrams optimized for presentations and documentation. Automatically handles common syntax pitfalls (list syntax conflicts, subgraph naming, spacing issues) to ensure diagrams render correctly in Obsidian, GitHub, and other Mermaid-compatible platforms.

## Quick Start

When creating a Mermaid diagram:

1. **Analyze the content** - Identify key concepts, relationships, and flow
2. **Choose diagram type** - Select the most appropriate visualization (see Diagram Types below)
3. **Select configuration** - Determine layout, detail level, and styling
4. **Generate diagram** - Create syntactically correct Mermaid code
5. **Output in markdown** - Wrap in proper code fence with optional explanation

**Default assumptions:**
- Vertical layout (TB) unless horizontal requested
- Medium detail level (balanced between simplicity and information)
- Professional color scheme with semantic colors
- Obsidian/GitHub compatible syntax

## Diagram Types

### 1. Process Flow (graph TB/LR)
**Best for:** Workflows, decision trees, sequential processes, AI agent architectures

**Use when:** Content describes steps, stages, or a sequence of actions

**Key features:**
- Swimlanes via subgraph for grouping related steps
- Arrow labels for transitions
- Feedback loops and branches
- Color-coded stages

**Configuration options:**
- `layout`: "vertical" (TB), "horizontal" (LR)
- `detail`: "simple" (core steps only), "standard" (with descriptions), "detailed" (with annotations)
- `style`: "minimal", "professional", "colorful"

### 2. Circular Flow (graph TD with circular layout)
**Best for:** Cyclic processes, continuous improvement loops, agent feedback systems

**Use when:** Content emphasizes iteration, feedback, or circular relationships

**Key features:**
- Central hub with radiating elements
- Curved feedback arrows
- Clear cycle indicators

### 3. Comparison Diagram (graph TB with parallel paths)
**Best for:** Before/after comparisons, A vs B analysis, traditional vs modern systems

**Use when:** Content contrasts two or more approaches or systems

**Key features:**
- Side-by-side layout
- Central comparison node
- Clear differentiation via color/style

### 4. Mindmap
**Best for:** Hierarchical concepts, knowledge organization, topic breakdowns
```
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