Agent skill

Article Frontmatter

by adithya-s-k in adithya-s-k/FineEnvs

Configure article metadata via MDX frontmatter. An agent skill from adithya-s-k/FineEnvs.

Apache-2.0Auto-check passedDocuments & Office

Install Article Frontmatter

skills CLI
$ npx skills add adithya-s-k/FineEnvs --skill article-frontmatter -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install adithya-s-k/FineEnvs article-frontmatter --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/adithya-s-k/FineEnvs.git skills-src && mkdir -p .claude/skills && cp -r skills-src/content/articles/geoguesser/.ai/skills/article-frontmatter .claude/skills/article-frontmatter && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
article-frontmatter
GitHub stars
456
Token cost
~1.1k tokens
SKILL.md length
349 words
Files
1
Skills in repo
8
Repo updated
First seen
Licence
Apache-2.0

At a glance

Configure article metadata via MDX frontmatter. An agent skill from adithya-s-k/FineEnvs.

  • The user asks about titles
  • SKILL.md covers Frontmatter fields, Title line breaks, Template variants and Authors and affiliations, plus 3 more sections
  • Reaches huggingface.co and mit.edu
  • Template variants

What it does

Article Frontmatter is an agent skill from adithya-s-k/FineEnvs. Configure article metadata via MDX frontmatter. Use when the user asks about titles, authors, affiliations, template variants, banner, DOI, PDF export, or any article.mdx frontmatter field.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Documents & Office, covering Markdown, PDF and Reinforcement learning. The repository describes itself as: FineEnvs — RL Environments 101: building and scaling RL environments in the age of LLMs. The licence is Apache-2.0.

When your agent uses it

  • The user asks about titles
  • Template variants
  • Any article.mdx frontmatter field

Example prompts

  • “/article-frontmatter”

What it can do on your machine

Read from SKILL.md and the folder at commit 5e0b46e. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are yaml).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • huggingface.co
    • mit.edu
    • arxiv.org
    • github.com
    • creativecommons.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Article Frontmatter loads about 1.1k tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 349 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~52
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from adithya-s-k/FineEnvs at commit 5e0b46e, republished under its Apache-2.0 licence (© adithya-s-k). 349 words, ~1,082 tokens.

Download SKILL.mdSave it as .claude/skills/article-frontmatter/SKILL.md (or your agent's skills folder).
name
article-frontmatter
description
Configure article metadata via MDX frontmatter. Use when the user asks about titles, authors, affiliations, template variants, banner, DOI, PDF export, or any article.mdx frontmatter field.

Article Frontmatter Reference

All metadata lives in app/src/content/article.mdx frontmatter (YAML block).

Frontmatter fields

FieldTypeDefaultDescription
titlestringrequiredArticle title. Supports \n for line breaks (rendered as <br/>).
descriptionstring""Short description / subtitle shown below the title.
authorsarray[]List of authors (see below).
affiliationsarray[]List of affiliations (see below).
publishedstring—Publication date, e.g. "Apr. 04, 2026".
template"article" or "paper""article"Layout variant (see below).
bannerstring"banner.html"Banner embed filename in embeds/.
doistring—DOI identifier, shown in footer.
showPdfbooleantrueShow PDF download button in metadata bar.
tableOfContentsAutoCollapsebooleanfalseAuto-collapse TOC sections on scroll.
licencestring—Licence text (HTML allowed), shown in footer.
pdfProOnlybooleanfalseGate PDF download behind HF Pro badge.
seoThumbImagestring—Custom OG image URL for social sharing.
linksarray[]External links shown in paper template hero (see below).

Title line breaks

Long titles are automatically balanced across lines (text-wrap: balance). Titles longer than 60 characters are automatically downsized for readability (>100 chars: even smaller).

To force a manual line break, use \n inside the title string:

yaml
title: "Why Open-Source LLMs\nAre Reshaping the AI Landscape"

This renders as two lines in the Hero section. The plain-text version (for SEO / PDF) strips the break automatically.

Template variants

ValueLayoutFeatures
article (default)Full layoutBanner, sidebar TOC, figure numbering, citation block, DOI, PDF export
paperSingle centered columnNo TOC sidebar, no figure numbering, no citation/DOI block, lighter footer

Authors and affiliations

yaml
authors:
  - name: "Alice Martin"
    url: "https://example.com/alice"
    affiliations: [1]
  - name: "Bob Chen"
    affiliations: [1, 2]
affiliations:
  - name: "Hugging Face"
    url: "https://huggingface.co"
  - name: "MIT"
    url: "https://mit.edu"

Affiliation indices are 1-based and rendered as superscript numbers next to author names.

The links field adds buttons below the author/affiliation line in the paper template hero. Each link has a label and a url:

yaml
links:
  - label: "Paper"
    url: "https://arxiv.org/abs/..."
  - label: "Code"
    url: "https://github.com/..."
  - label: "Demo"
    url: "https://huggingface.co/spaces/..."
  - label: "Data"
    url: "https://huggingface.co/datasets/..."

Links are rendered as pill-shaped buttons and only visible in the paper template. They are hidden in the article template.

README tag (critical)

The project README.md contains a YAML frontmatter block with a tags field:

yaml
tags:
  - research-article-template

NEVER remove the research-article-template tag from the README. This tag is used by the Research Article Gallery to discover and list all articles built with this template. Removing it will make the Space invisible in the gallery.

Complete example

yaml
---
title: "Scaling Laws for\nNeural Language Models"
description: "An empirical study of scaling behavior across model size, data, and compute"
authors:
  - name: "Alice Martin"
    url: "https://example.com/alice"
    affiliations: [1]
affiliations:
  - name: "Hugging Face"
    url: "https://huggingface.co"
published: "Apr. 04, 2026"
template: "article"
banner: "banner.html"
doi: "10.1234/example.2026"
showPdf: true
tableOfContentsAutoCollapse: true
licence: "This work is licensed under <a href='https://creativecommons.org/licenses/by/4.0/'>CC BY 4.0</a>."
---

© adithya-s-k, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in content/articles/geoguesser/.ai/skills/article-frontmatter of adithya-s-k/FineEnvs.

Open the folder on GitHubat commit 5e0b46e

Compare with similar skills

Article Frontmatter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Article Frontmatter compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Article Frontmatter this skilladithya-s-k/FineEnvs456—~1.1kAutomated safety check: PassApache-2.0
MarkitdownImCa0/just-laws78214 repos~3.2kAutomated safety check: NotesMIT
Gzh Designisjiamu/gzh-design-skill3.9k1 repos~2.2kAutomated safety check: PassAGPL-3.0
Bookforge Korean Ebook PDF Makergongnyang/bookforge3151 repos~1.7kAutomated safety check: PassMIT
Huashu Markdown Publishing Pipelinealchaincyf/huashu-md-html907—~4.8kAutomated safety check: PassMIT
Paper Interpretationdigoal/blog8.6k—~1.5kAutomated safety check: PassGPL-2.0

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Questions about Article Frontmatter

What does Article Frontmatter do?

Configure article metadata via MDX frontmatter. An agent skill from adithya-s-k/FineEnvs. Article Frontmatter is an agent skill from adithya-s-k/FineEnvs. Configure article metadata via MDX frontmatter.

When should I use Article Frontmatter?

Article Frontmatter fits situations like: the user asks about titles; template variants; any article.mdx frontmatter field.

How do I install Article Frontmatter in Claude Code?

Run `npx skills add adithya-s-k/FineEnvs --skill article-frontmatter -a claude-code`. Or copy the skill folder (content/articles/geoguesser/.ai/skills/article-frontmatter in adithya-s-k/FineEnvs) into .claude/skills/article-frontmatter in your project. Claude Code loads it when a task matches its description.

How do I install Article Frontmatter in Codex?

Run `npx skills add adithya-s-k/FineEnvs --skill article-frontmatter -a codex`. Or copy the skill folder (content/articles/geoguesser/.ai/skills/article-frontmatter in adithya-s-k/FineEnvs) into .agents/skills/article-frontmatter in your project. Codex loads it when a task matches its description.

Can I use Article Frontmatter in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add adithya-s-k/FineEnvs --skill article-frontmatter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/article-frontmatter, .gemini/skills/article-frontmatter, .github/skills/article-frontmatter and .opencode/skills/article-frontmatter in your project.

What does Article Frontmatter need to run?

SKILL.md names no scripts, command-line tools or credentials: Article Frontmatter is instructions for the agent only.

Does Article Frontmatter access the network?

SKILL.md names 5 domains. In commands or code: huggingface.co, mit.edu, arxiv.org, github.com and creativecommons.org; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.

Is Article Frontmatter safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Article Frontmatter use?

Article Frontmatter is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Article Frontmatter use?

About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Article Frontmatter?

Skills that share tags, products or a category with Article Frontmatter: Markitdown (ImCa0/just-laws, 782 stars), Gzh Design (isjiamu/gzh-design-skill, 3.9k stars), Bookforge Korean Ebook PDF Maker (gongnyang/bookforge, 315 stars) and Huashu Markdown Publishing Pipeline (alchaincyf/huashu-md-html, 907 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Article Frontmatter?

adithya-s-k (a GitHub user) maintains it in adithya-s-k/FineEnvs, which has 456 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 8, 2026.

Source: adithya-s-k/FineEnvs on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.