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
metadata	{"argument-hint":"[diagram description or requirements]"}

Mermaid Diagram Generator

Generate high-quality Mermaid diagram code based on user requirements.

Workflow

1. Understand Requirements: Analyze user description to determine the most suitable diagram type
2. Read Documentation: Read the corresponding syntax reference for the diagram type
3. Generate Code: Generate Mermaid code following the specification
4. Apply Styling: Apply appropriate themes and style configurations

Diagram Type Reference

Select the appropriate diagram type and read the corresponding documentation:

Type	Documentation	Use Cases
Flowchart	flowchart.md	Processes, decisions, steps
Sequence Diagram	sequenceDiagram.md	Interactions, messaging, API calls
Class Diagram	classDiagram.md	Class structure, inheritance, associations
State Diagram	stateDiagram.md	State machines, state transitions
ER Diagram	entityRelationshipDiagram.md	Database design, entity relationships
Gantt Chart	gantt.md	Project planning, timelines
Pie Chart	pie.md	Proportions, distributions
Mindmap	mindmap.md	Hierarchical structures, knowledge graphs
Timeline	timeline.md	Historical events, milestones
Git Graph	gitgraph.md	Branches, merges, versions
Quadrant Chart	quadrantChart.md	Four-quadrant analysis
Requirement Diagram	requirementDiagram.md	Requirements traceability
C4 Diagram	c4.md	System architecture (C4 model)
Sankey Diagram	sankey.md	Flow, conversions
XY Chart	xyChart.md	Line charts, bar charts
Block Diagram	block.md	System components, modules
Packet Diagram	packet.md	Network protocols, data structures
Kanban	kanban.md	Task management, workflows
Architecture Diagram	architecture.md	System architecture
Radar Chart	radar.md	Multi-dimensional comparison
Treemap	treemap.md	Hierarchical data visualization
User Journey	userJourney.md	User experience flows
ZenUML	zenuml.md	Sequence diagrams (code style)

Configuration & Themes

• Theming - Custom colors and styles
• Directives - Diagram-level configuration
• Layouts - Layout direction and spacing
• Configuration - Global settings
• Math - LaTeX math support

Output Specification

Generated Mermaid code should:

1. Be wrapped in ```mermaid code blocks
2. Have correct syntax that renders directly
3. Have clear structure with proper line breaks and indentation
4. Use semantic node naming
5. Include styling when needed to improve visual appearance

Example Output

flowchart TD
    A[Start] --> B{Condition}
    B -->|Yes| C[Execute]
    B -->|No| D[End]
    C --> D

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User requirements: $ARGUMENTS