mermaid

name	mermaid
description	Generate Mermaid diagrams from user requirements. Supports flowcharts, sequence diagrams, class diagrams, ER diagrams, Gantt charts, and 18 more diagram types.
allowed-tools	Read Write Edit

Mermaid Diagram Generator

Generate Mermaid diagram code based on user requirements.

Workflow

1. Analyze user description → determine diagram type
2. Read corresponding syntax reference
3. Generate Mermaid code following the spec
4. Apply styling if needed

Diagram types

Type	Reference	Use cases
Flowchart	flowchart.md	Processes, decisions
Sequence	sequenceDiagram.md	Interactions, API calls
Class	classDiagram.md	Class structure
State	stateDiagram.md	State machines
ER	entityRelationshipDiagram.md	Database design
Gantt	gantt.md	Timelines
C4	c4.md	System architecture
Mindmap	mindmap.md	Hierarchical structures

Full list: see all-diagram-types.md

Config

• Theming
• Directives
• Layouts

Output rules

1. Wrap in ```mermaid code blocks
2. Correct syntax that renders directly
3. Semantic node naming
4. Styling when needed for clarity