cuozg/mermaid
skills/mermaid/SKILL.md
Use this skill to create Mermaid diagrams — flowcharts, sequence diagrams, state machines, class diagrams, and architecture diagrams. Use it when the user wants to visualize a system, document a flow, explain an architecture, or create any kind of technical diagram, even if they don't mention "Mermaid" specifically. Also use when the user says "draw this," "show me how X flows," or "visualize the architecture."
$ install --global
skillsauthnpx skillsauth add cuozg/oh-my-skills mermaidInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- mermaid
- description:
- >
- author:
- kuozg
- version:
- 1.0
mermaid
Produce ```mermaid code blocks for any system, flow, or relationship that benefits from visualization.
When to Use
- Explaining a system's data flow or architecture
- Documenting state machines or game logic transitions
- Illustrating class relationships or dependencies
- Creating sequence diagrams for async or networked flows
- Embedding diagrams in PRs, wikis, or investigation reports
Workflow
- Identify — Determine what needs visualizing (flow, state, sequence, class, ER)
- Select — Choose the diagram type that maps best to the subject
- Sketch — List nodes/states/actors and their relationships before writing syntax
- Write — Produce the Mermaid code block using correct syntax for the chosen type
- Review — Check for syntax errors (unclosed quotes, reserved words, missing arrows)
Rules
- Output diagrams inside triple-backtick ```mermaid blocks — never bare text
- Prefer
flowchart TDover legacygraph TD - Limit diagram to ~20 nodes; split into sub-diagrams if larger
- Label all edges with meaningful verbs or data names
- Use
noteor%%comments to clarify non-obvious nodes
Output Format
One or more ```mermaid code blocks, each preceded by a one-sentence description of what it shows.
Reference Files
references/diagram-types.md— ER diagram + common pitfalls (loadsunity-standards/references/other/mermaid-syntax.mdfor full syntax)
Load references on demand via read_skill_file("mermaid", "references/{file}") and read_skill_file("unity-standards", "references/other/mermaid-syntax.md").
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