mermaid-diagram-generator
Use when users need Mermaid diagrams for Arduino code structure, state machines, timing diagrams, task architecture, or workflow documentation.
What this skill does
# Mermaid Diagram Generator
Generate Mermaid diagrams from Arduino and embedded-system concepts without
loading unnecessary detail up front.
## Resources
- `scripts/generate_diagram.py` - CLI generator for diagram output
- `references/diagram-templates.md` - Mermaid templates by diagram type
- `references/code-patterns.md` - code-to-diagram extraction heuristics
- `references/validation-checklist.md` - rendering and syntax checks
## When to Use
Use this skill when the request asks to:
- visualize a state machine
- turn code into a flowchart
- document timing or protocol sequences
- show FreeRTOS task relationships
- add a diagram to project documentation
Do not use it for tiny code snippets where a diagram adds no clarity.
## Workflow
1. Identify the diagram type:
- state flow -> open `references/code-patterns.md`
- timing or protocol sequence -> open `references/diagram-templates.md`
- task architecture -> open both `code-patterns.md` and
`diagram-templates.md`
2. Prefer the simplest diagram that explains the behavior.
3. Use `scripts/generate_diagram.py` when the input is structured enough for
automation.
4. Run through `references/validation-checklist.md` before presenting the final
Mermaid output.
## Verification
- Mermaid syntax parses without errors.
- The diagram uses the correct abstraction level for the request.
- State names, transitions, or signals match the source material exactly.
- The output is readable without reverse-engineering the code.
## Integration
- Pair with `freertos-patterns` for task and synchronization diagrams.
- Pair with `arduino-code-generator` when a generated sketch also needs visual
documentation.
- Pair with `readme-generator` when the diagram should ship in repository docs.
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