seb-sans-font

Seb Sans — a screen grotesque for AI interfaces, derived from Inter 4.1. Slashed 0, footed 1, tailed l, and spurred G are defaults. Full weight ladder 100–900 (9 Text statics + variable font).

Package 0.7.2 · fonts 2.001 · OFL 1.1

Install

npm (recommended for projects)

# OS fonts + agent skill (typography + install guide)
npx seb-sans-font install --with-skill

# Web fonts into your repo (smallest footprint)
npx seb-sans-font download --set web --dest ./public/fonts

# As a dev dependency (postinstall installs OS fonts)
npm install seb-sans-font -D

curl (no Node required)

curl -fsSL https://raw.githubusercontent.com/sebmendo1/seb-sans/main/install.sh | bash

Homebrew (macOS)

brew install --cask sebmendo1/tap/font-seb-sans

CLI

Every command prints one JSON line on stdout — designed for agents and CI.

| Command | What it does | |---|---| | npx seb-sans-font install | OS install: Var + 9 Text + 2 Display (12 TTFs) | | npx seb-sans-font var-only | OS install: variable font only | | npx seb-sans-font download [--set full\|text\|var\|web] [--dest DIR] | Copy fonts to a project directory | | npx seb-sans-font verify | Read-only status check | | npx seb-sans-font uninstall | Remove installed files |

Flags: --with-skill (install agent guide to Claude + Cursor skill dirs), --var-only, --dest, --set.

Download sets:

| Set | Files | |---|---| | web | SebSansVar.woff2 only | | var | Var TTF + WOFF2 | | text | 9 Text statics (100–900) | | full | All 13 binaries |

Web setup

After download --set web:

@font-face {
  font-family: 'Seb Sans Var';
  src: url('/fonts/SebSansVar.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}
:root {
  --font-sans: 'Seb Sans Var', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

Load the variable WOFF2 only — do not load multiple static files on web.

For coding agents

This package ships SKILL.md — install workflow, verify loop, @font-face wiring, and the full H1–H6 type scale. Install it as a skill:

npx seb-sans-font install --with-skill

Writes to ~/.cursor/skills/seb-sans-typography/ and ~/.claude/skills/seb-sans-typography/.

Detailed install contract (exit codes, weight map): AGENT_INSTALL.md.

Package contents

| Family | Cuts | |---|---| | Seb Sans (Text) | Thin · ExtraLight · Light · Regular · Medium · SemiBold · Bold · ExtraBold · Black | | Seb Sans Display | Regular · Bold | | Seb Sans Var | TTF + WOFF2 (wght 100–900, opsz 14–32, XHGT 82–122) |

Also ships: interactive specimen (SebSans-Specimen.html), landing page (index.html).

Links

• GitHub
• Releases
• Specimen

License

SIL Open Font License 1.1 — see LICENSE. Derived from Inter © The Inter Project Authors.