AI Plugin Indexmermaid vs css-file-size
mermaid and css-file-size are both design skills. css-file-size scores higher (87 vs 45 out of 100). css-file-size has more GitHub stars (75k), and mermaid was updated more recently (4 days ago). The table compares them side by side.
| mermaid | css-file-size | |
|---|---|---|
| Score | 45 / 100 | 87 / 100 |
| What it does | WHAT — Mermaid diagrams from text (flowchart, sequence, class, state, ER, gantt, gitGraph) — Markdown-native, Git-native, MIT. Primary renderer for architecture pack; renders via GitHub native or mermaid CLI (mmdc) to SVG/PNG. | Use when auditing slow page loads, heavy assets, or rendering delays related to Optimize CSS file size. Verify the actual bottleneck in DevTools, Lighthouse, or field data before recommending changes. |
| Publisher | Community: ulises-jeremias | Community: thedaviddias |
| Grades | Maintenance A, Licence A, Quality C | Maintenance A, Licence A, Quality A |
| npm downloads a week | Not on npm | Not on npm |
| Runs | Skill | Skill |
| Works with | Claude Code, Claude apps | Claude Code, Claude apps |
| GitHub stars | 19 | 74,518 |
| Last commit | 19 Oct 2026 | 6 Oct 2026 |
| Licence | MIT | MIT |
| Listed since | 20 Oct 2026 | 20 Oct 2026 |
| Install mermaid | Install css-file-size |
Questions
Is mermaid or css-file-size more popular?
css-file-size has more GitHub stars: 74,518.
Can I use mermaid and css-file-size together?
Yes. AI assistants can load several skills at once. Install both and the assistant picks the right one for each task.