←Leaderboard/Diagramming/diagram-design
Last commit on October 1, 2026·Created on April 16, 2026

cathrynlavery/diagram-design

“A comprehensive system for generating branded technical architecture and data flow visualizations.”
Combined rank
#22
across all skills
In Diagramming
#1
category rank
Stars
43.3k
+1.8% in last 7d
Forks
2.8k
+1.9% in last 7d
Watchers
123
-0.8% in last 7d
Traction scoreGitHub stars can be faked, so popularity alone can be misleading. Traction Score looks for broader signs of recent attention, adoption, and active maintenance.
TL;DR

This skill enables solutions architects and product managers to produce precise technical diagrams, ranging from IT current-state maps and data flow models to user journeys and story maps. It transforms complex system dependencies into structured visual assets in HTML, SVG, or PNG formats.

By supporting a wide array of specialized layouts—including Wardley maps, dependency graphs, and database schemas—the tool ensures that architectural deltas and deployment flows remain consistent with professional branding standards.

WHO IT'S FOR
Solutions Architects
creating branded architecture and data flow diagrams
Technical Product Managers
mapping user journeys and story maps
Data Engineers
visualizing ER models and database schemas
Enterprise Architects
designing IT current-state and deployment maps
Repository contents

1 skill file

Compatible AgentsThe repository documents support for these agents. The skills may also work with other agents that can load SKILL.md files, but they may need some setup or small changes.

Use this skill

Follow the documented setup, then try a first task.

I’m using

Claude Code managed plugin

Installs: Installs the complete diagram-design plugin from the repository marketplace, including the shared Diagram Design skill. · Claude Code

  1. In a Claude Code agent session, add the repository marketplace and install the diagram-design plugin.

    /plugin marketplace add cathrynlavery/diagram-design
    /plugin install diagram-design@diagram-design
  2. In Claude Code, run `/plugin`, open Marketplaces, select diagram-design, and choose Enable auto-update. If prompted, enter `/reload-plugins` in the Claude Code session; otherwise the next session loads the update.

README.md ↗ · Checked Oct 4, 2026.claude-plugin/marketplace.json ↗ · Checked Oct 4, 2026

Give it something to do.

Suggested first task

Create a small app architecture diagram

Uses diagram-design

  • A concise description of the app's main components and connections
  • For first use: a website URL, installed skill, local design-system folder, pasted design tokens, saved profile, or permission to keep the default style
Using the diagram-design skill, make an architecture diagram of my app. Before drawing, follow the skill's first-time style-guide check; ask me to choose a brand source or explicitly keep the default if the project has not been customized.
.codex-plugin/plugin.json ↗ · Checked Oct 4, 2026skills/diagram-design/SKILL.md ↗ · Checked Oct 4, 2026
Suggested first task

Turn a decision process into a flowchart

Uses diagram-design

  • The decision process, including decision points, branches, and outcomes
  • For first use: the desired style-guide choice or permission to keep the default style
Using the diagram-design skill, create a flowchart for this decision process. Keep the first result focused on the essential decisions and outcomes.
.codex-plugin/plugin.json ↗ · Checked Oct 4, 2026skills/diagram-design/SKILL.md ↗ · Checked Oct 4, 2026
Suggested first task

Redraw a Mermaid diagram

Uses diagram-design

  • The Mermaid diagram source
  • The desired output size and level of detail
  • For first use: the desired style-guide choice or permission to keep the default style
Using the diagram-design skill, redraw this Mermaid diagram at the right size and detail level. Start with a static result unless motion materially clarifies an ordered change.
.codex-plugin/plugin.json ↗ · Checked Oct 4, 2026skills/diagram-design/SKILL.md ↗ · Checked Oct 4, 2026