Mermaid Diagram Specialist
If you've ever needed to document an API flow or database schema and reached for a whiteboard, this will save you time. It generates Mermaid diagrams in proper syntax: flowcharts for decision trees, sequence diagrams for API calls, ERDs for database relationships, and C4 diagrams for architecture. The skill includes a decision matrix to pick the right diagram type and covers all the syntax details like node shapes, arrow types, and cardinality symbols. Most useful when you're writing technical docs or explaining system design to your team. The examples are solid and show real patterns like authentication flows and booking systems, not toy demos.
- skills.sh installs
- 1.4K
- GitHub stars
- 33.2K
- last updated
- Aug 21, 2026
Install
$ npx -y skills add davila7/claude-code-templates --skill mermaid-diagram-specialist --agent claude-codeInstalls into .claude/skills of the current project.
Files
Mermaid Diagram Specialist
Overview
Purpose: Expert in creating comprehensive Mermaid diagrams for documentation, architecture visualization, and process mapping
Category: Tech Primary Users: tech-writer, architecture-validator, product-technical, tech-lead
When to Use This Skill
- Creating architecture documentation
- Visualizing workflows and processes
- Documenting data models (ERDs)
- Explaining sequence flows
- Creating state machines
- Documenting component relationships
- Creating decision trees
- Visualizing user journeys
Prerequisites
Required:
- Understanding of the system/process to document
- Access to technical specifications
- Knowledge of diagram type needed
Optional:
- Design system colors for consistency
- Existing documentation to reference
Input
What the skill needs:
- Process/system description
- Entities and relationships (for ERDs)
- Component interactions (for sequence diagrams)
- Architecture layers (for C4 diagrams)
- States and transitions (for state diagrams)
Workflow
Step 1: Diagram Type Selection
Objective: Choose appropriate diagram type for requirements
Available Diagram Types:
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- Repository
- github.com/davila7/claude-code-templates
- Categories
- Code Review & Quality, Sales & Marketing
- First seen
- Apr 16, 2026
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