graphviz

Generate DOT-based directed or undirected diagrams with automatic layout.

Updated May 29, 2026

Search Tags:#layout #call graph #dependency graph #diagram generation #dot #graphviz #clusters

Ready to run

npx skills add https://github.com/aryanshrai03/readme-ai --skill graphviz-aryanshrai03

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: graphviz
Source: https://github.com/aryanshrai03/readme-ai/tree/main/api/skills/graphviz
Command: npx skills add https://github.com/aryanshrai03/readme-ai --skill graphviz-aryanshrai03

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Graphviz simplifies turning relationships and structures into readable diagrams, without manually arranging nodes and edges.

Core Features & Use Cases

Create directed and undirected graphs using DOT language for dependency trees, call graphs, and module/package relationships.
Automatic layout with layout controls (e.g., rank direction, spacing, and edge routing) to reduce overlap and improve readability.
Styling and clustering support including clusters (with cluster_ prefix), labeled edges, node attributes, and HTML-like labels for richer visuals.

Quick Start

Ask it to produce a DOT diagram for your system by describing which nodes exist and whether relationships are directed or undirected, then request the output enclosed in a single ```dot code block.

Frequently Asked Questions about graphviz

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate a dependency graph automatically from relationships?▼

To generate a dependency graph automatically, you define nodes and edges using DOT syntax, and the tool computes the layout and routing to produce a readable diagram without manual arrangement.

How do I create clusters in a DOT diagram for module hierarchies?▼

To create clusters in a DOT diagram for module hierarchies, you must prefix cluster subgraph names with cluster_ and apply valid node attributes to group related components visually.

What is the difference between digraph and graph edge operators in DOT?▼

The difference is that digraph edge operators use -> for directed relationships, while graph edge operators use -- for undirected relationships, requiring syntax correctness for valid diagram generation.

Can I control the layout and spacing of call graphs to reduce node overlap?▼

Yes, you can control call graph layout and spacing by applying layout controls such as rank direction and edge routing attributes, which automatically reduce overlap and improve readability.

What is the best way to visualize call graphs without manually arranging nodes?▼

The best way to visualize call graphs without manual arrangement is using DOT language to define directed edges, letting the automatic layout engine handle fine-grained edge routing and structure.