A font build and release guide for turning SVG letter drawings into installable TTF font files with fontTools. It also covers naming, licensing, validation, and distribution rules.

Compiling SVG glyphs, creating TTF files, checking builds, embedding licenses, updating the fonts folder, and releasing fonts on GitHub.

It provides the steps and checks needed to turn glyph artwork into a usable font release without missing compatibility or licensing details.

How revfactory/font-harness configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to revfactory/font-harness. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/revfactory/font-harness/main/.claude/skills/font-build/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/revfactory/font-harness

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/revfactory/font-harness/font-build/github.svg)](https://agentmods.dev/skills/revfactory/font-harness/font-build)

Your own site

<a href="https://agentmods.dev/skills/revfactory/font-harness/font-build"><img src="https://agentmods.dev/badge/skills/revfactory/font-harness/font-build/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/revfactory/font-harness/font-build"><img src="https://agentmods.dev/badge/skills/revfactory/font-harness/font-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 154 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,251 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00154	$0.01251
Opus 5.5	$0.00062	$0.00500
Sonnet 5.5	$0.00031	$0.00250
Haiku 4.5	$0.00015	$0.00125

Measured 2mo ago against content hash 41f4a28f62e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

font-build scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/build_font.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/font-build/SKILL.md · 74 lines

The source is not reproduced here

Licensed OFL-1.1

The repository is licensed OFL-1.1, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 74 lines · 154 tokens per session scan A 41f4a28f62e8

Subscribe to this mod's changes

font-build is a skill published in the GitHub repository revfactory/font-harness (59 stars, last pushed 4mo ago), licensed OFL-1.1. It adds 154 tokens to every session and 1,251 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Design and UX Git and workflow Releases

font-build next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
font-buildrevfactory/font-harness	Skill	59	4mo ago	OFL-1.1	A	154	Claude Code
release-skillsJimLiu/baoyu-design	Skill	6.1k	yesterday	none	A	87	Claude Code
forgiveness-undo-and-soft-deleteDeibler/universal-design-principles	Skill	14	6mo ago	none	A	102	Claude Code
design-tokens-versioningalmasumdev/awesome-mobile-design-system-agent-skills	Skill	2	6mo ago	none	A	34	Claude Code, Codex
releasethedotmack/claude-mem	Skill	114k	yesterday	Apache-2.0	A	13	Claude Code
release-notesphuryn/pm-skills	Skill	28k	8d ago	MIT	A	57	Claude Code
multi-agent-release-managerchromium/chromium	Skill	25k	yesterday	BSD-3-Clause	A	27	Claude Code, Codex

font-harness: Skill for Claude Code