legibility-typeface-and-size
100 / 100 · Low risk
Fine to try.
Apply typeface and size choices for legibility — picking the right typeface for the use case (display, body, code, UI) and sizing it appropriately for the rendering context. Use when designing a type system for a product, choosing a brand typeface, evaluating an existing typeface against rendering conditions, picking sizes for body, headings, captions, code, or UI elements. The two most fundamental legibility decisions; everything else (contrast, spacing) is layered on top.
What this skill can do
We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'legibility-typeface-and-size' ] || [ -L ~/.agents/skills/'legibility-typeface-and-size' ]; then echo 'A skill folder named legibility-typeface-and-size already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/hashgraph-online/awesome-codex-plugins' "$d" && git -C "$d" checkout --quiet '70b6a3a3a7c774671e45af646306e1448baf0511' -- 'plugins/HDeibler/universal-design-principles/plugins/perception-and-hierarchy-principles/skills/legibility-typeface-and-size' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/HDeibler/universal-design-principles/plugins/perception-and-hierarchy-principles/skills/legibility-typeface-and-size' ~/.agents/skills/'legibility-typeface-and-size' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'legibility-typeface-and-size' ~/.claude/skills/'legibility-typeface-and-size' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
[](https://zalavijaysinh.github.io/skilltrust/repos/hashgraph-online/awesome-codex-plugins/)
Score history
| Date | Version | Score |
|---|---|---|
| 2026-11-14 | 70b6a3a | 100 |
| 2026-11-13 | 3e1e6b2 | 100 |
| 2026-11-12 | 6d2e63f | 100 |
| 2026-11-11 | 4070676 | 100 |
| 2026-11-10 | f620aba | 100 |
| 2026-11-09 | 3062ea3 | 100 |
| 2026-11-08 | 057d789 | 100 |
| 2026-11-06 | e012fe1 | 100 |