Diagram Design: evidence-driven visual explanations
Choosing Diagram Design versus a renderer, canvas editor or custom interactive view
Select a diagram workflow by source fidelity, editing needs and reader intent rather than by aesthetic slogans or unsupported competitor rankings.
What you will learn
- Choose the artifact ownership model
- Redrawing trades layout fidelity for explanation
- Match interaction to learning needs
Before you start
- Basic HTML and SVG concepts
- Ability to distinguish a system relationship from its visual layout
Choose a useful representation, account for simplification and interpret checker findings within their real scope.
Key takeaways
- Choose based on editing, review and delivery ownership.
- Redraw is not pixel-preserving conversion.
- Input grammar support and output visual types are different lists.
Choose the artifact ownership model
An agent skill is useful when a team wants source-backed explanations delivered as reviewable markup and images. A collaborative canvas serves a different need when people must directly rearrange objects together. A text renderer offers another tradeoff when the source language and deterministic rendering behavior are central to the workflow.
These are categories of workflow, not a benchmark ranking of named products. Ask who edits the source, who approves simplification, how revisions are tracked and what the final reader receives. A visually polished screenshot is not enough if the team needs editable semantic source or reproducible exports years later.
Redrawing trades layout fidelity for explanation
The project’s import design intentionally discards source styling and renderer placement while preserving meaningful relationships. That can improve an editorial explanation, but it is not pixel-faithful conversion. If the original coordinates or exact appearance are contractual requirements, verify whether a redraw workflow is acceptable before starting.
Likewise, supported Mermaid grammars do not include every language feature or every diagram kind. A documented visual type called Sankey does not imply that Mermaid Sankey source is accepted by the extractor. Keep the output taxonomy and input parser support matrix separate when evaluating existing diagram collections.
Match interaction to learning needs
A static view works well for stable relationships that a reader can inspect at their own pace. The project’s optional ordered motion can serve a bounded explanatory purpose. Live data exploration, arbitrary filtering or a navigable 3D model requires an independently designed interface rather than assuming every interaction belongs in a shareable diagram file.
Evaluate a small representative set: one hierarchy, one ordered exchange and one crowded import. Have reviewers predict the relationships before reading the explanation, then record confusion and revision effort. No competitor comparison or learner study was run for this series; the selection framework is a proposed evaluation method.
Implementation steps
- 1
Identify the required source and artifact ownership model.
- 2
Check supported input grammars against real examples.
- 3
Decide which fidelity and interaction requirements are essential.
- 4
Evaluate representative tasks with reader-focused acceptance criteria.
Copy-ready example
{
"selectionQuestions": [
"Must source coordinates be preserved?",
"Who reviews simplification?",
"Which input grammars are required?",
"Does the reader need live interaction?"
],
"competitorBenchmarkPerformed": false
}Frequently asked questions
Does supporting a visual type imply supporting its Mermaid grammar?
No. Output layouts and imported grammar support are separate contracts. Check the extractor’s documented supported kinds.
Is custom interaction just another motion option?
Not under the inspected pinned-controller contract. A custom interactive application needs its own design, implementation and security review.
Sources
- skills/diagram-design/references/import-mermaid.mdSource checked 2026-09-08
- skills/diagram-design/references/output-spec.mdSource checked 2026-09-08
- README.mdSource checked 2026-09-08