Diagram Design
Cathryn Lavery's
diagram-designis a strong reference implementation for editorial, brand-aware diagrams; adopt its quality rules now and trial the package only after overlap and compatibility checks.
The MIT-licensed repository describes a self-contained HTML and inline-SVG workflow with multiple diagram families, light/dark/editorial styles, brand onboarding, accessible contrast, and SVG/PNG export. Its most useful design rules are subtractive: every node must earn its place, density should stay controlled, accent color should identify only one or two focal points, and brand skin should replace generic rounded-box sameness. Source: cathrynlavery/diagram-design, reviewed 2026-07-15
Local Fit
The repository overlaps with Security and Review Skills and Media Generation Skills. The local create-graphics skill should route editable whiteboards to Excalidraw and pixel-precise/selectable-text graphics to HTML/SVG while borrowing Diagram Design's deletion, density, accent, and brand-onboarding discipline.
Install Decision
CANDIDATE_TRIAL_OVERLAP_REVIEW. Do not add it to every runtime yet. A trial must prove a distinct diagram family or a materially better export/brand workflow, validate the source and dependencies, and define which local capability it supersedes or complements.
Current evidence keeps that decision intact: the MIT source is at
da45d4a79a76dc0742c8554b7eabe551db100701, with 6,612 stars, one skill,
and no detected tests or CI workflows. The source is useful and reputable; its
examples do not replace semantic-content review, responsive/accessibility
proof, editable export checks, or overlap evaluation against Kevin's existing
diagram routes. Source: commit-pinned repository receipt, 2026-08-12
Timeline
- 2026-08-12 | Refreshed Diagram Design to commit
da45d4a7and retained it as a strong project-scoped candidate: MIT and high-signal, but with no detected tests/CI and substantial overlap that still needs behavioral proof. Source: X2077235288389079200; commit-pinned repository receipt - 2026-07-16 | Reviewed the repository from Straight Fats, incorporated its core quality rules into
create-graphics, and recorded a gated trial rather than duplicating installed diagram capabilities. Source: Private Discord message1527125302671835288, 2026-07-15