What it does. Create branded architecture, architecture delta, IT current-state, flowchart, sequence, state machine, ER/data model, timeline, swimlane, quadrant, radar/spider, polar chart (polar/radial lollipop), l
Diagram Design
Create diagrams as self-contained HTML files with inline SVG and an editorial design system.
Forty-five visual types. Semantic patterns describe behavior; type references describe layout.
0. First-time setup — style guide gate
Before generating your first diagram in a new project, verify the style guide has been customized.
Do not silently ship default-skinned diagrams into a branded project.
First resolve any project
.diagram-design
marker per
references/profiles.md
; a successfully resolved marker selects its profile and
Install
npx skills add cathrynlavery/diagram-design --skill diagram-design
Or copy the skill folder manually:
git clone https://github.com/cathrynlavery/diagram-design.git
cp -r diagram-design/skills/diagram-design/ ~/.claude/skills/diagram-design
Source: cathrynlavery/diagram-design — 59,798 stars, MIT, verified 2026-10-22.