Agent skill

Slides

by Fergana-Labs in Fergana-Labs/stash

How to build presentation slide decks as HTML pages. An agent skill from Fergana-Labs/stash.

MITAuto-check passedDocuments & Office

Install Slides

skills CLI
$ npx skills add Fergana-Labs/stash --skill slides -a claude-code

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

GitHub CLI
$ gh skill install Fergana-Labs/stash slides --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/Fergana-Labs/stash.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/skills/slides .claude/skills/slides && 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
slides
GitHub stars
335
Token cost
~912 tokens
SKILL.md length
362 words
Files
1
Skills in repo
5
Repo updated
First seen
Licence
MIT

At a glance

How to build presentation slide decks as HTML pages. An agent skill from Fergana-Labs/stash.

  • Tasks that involve Slides and decks
  • SKILL.md covers The canvas — 1920 × 1080 (16:9), Required structure, Page types (data-type,… and Typography, plus 4 more sections
  • Reaches cdn.tailwindcss.com and cdn.jsdelivr.net

What it does

Slides is an agent skill from Fergana-Labs/stash. How to build presentation slide decks as HTML pages. Covers the slide format, canvas dimensions, and recommended libraries.

Its SKILL.md is about 910 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 Slides and decks. The repository describes itself as: Open-source infrastructure for agents that learn from experience. Capture production traces and turn lessons into reusable knowledge and skills. The licence is MIT.

When your agent uses it

  • Tasks that involve Slides and decks

Example prompts

  • “/slides”

What it can do on your machine

Read from SKILL.md and the folder at commit 6c88d16. 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 html).

    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:

    • cdn.tailwindcss.com
    • cdn.jsdelivr.net

    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

Slides loads about 912 tokens when it runs. Until then it costs about 33 tokens; SKILL.md has 362 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~33
When it runs · the whole SKILL.md, loaded when a task matches
~912

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 Fergana-Labs/stash at commit 6c88d16, republished under its MIT licence (© Fergana-Labs). 362 words, ~912 tokens.

Download SKILL.mdSave it as .claude/skills/slides/SKILL.md (or your agent's skills folder).
name
slides
description
How to build presentation slide decks as HTML pages. Covers the slide format, canvas dimensions, and recommended libraries.
when_to_use
When the user asks for slides, a slide deck, a presentation, a pitch, or a deck.
version
1

Building slide decks

A slide deck is a single HTML page with html_layout: "fixed-aspect" whose <body> contains one <section class="slide"> per slide.

The canvas — 1920 × 1080 (16:9)

Every slide is a fixed 1920 × 1080 px canvas with overflow:hidden. Stay inside a 64 px safe-area margin (working area 1792 × 952 px). Nothing should scroll inside a slide; the viewer scales the canvas to fit the viewport, and the exporter renders at native 1920×1080.

Required structure

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Deck title</title>
  <script src="https://cdn.tailwindcss.com"></script>
  <link href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6/css/all.min.css" rel="stylesheet">
  <style>
    /* Belt-and-suspenders — the viewer enforces these too. */
    section.slide {
      width: 1920px; height: 1080px;
      overflow: hidden; position: relative;
      box-sizing: border-box;
      padding: 64px;
    }
  </style>
</head>
<body>
  <section class="slide" data-type="cover">…</section>
  <section class="slide" data-type="content">…</section>
  <section class="slide" data-type="content">…</section>
  <section class="slide" data-type="final">…</section>
</body>
</html>
  • cover — title slide.
  • toc — table of contents.
  • chapter — section divider.
  • content — regular content slide.
  • final — thanks / Q&A / contact slide.

These let presenter view and future templates target slides by role.

Typography

  • Title text: ≥ 56 px.
  • Body text: ≥ 28 px.
  • Footnotes / captions: ≥ 20 px.
  • Use the system font stack or one CDN font (Inter, Geist). Avoid @font-face — it adds latency in export.
NeedUse
ChartsChart.js for 1–2 charts per slide; ECharts for dashboards; D3 only when custom
TablesPlain <table> + Tailwind classes. No DataTables.
IconsFont Awesome 6 (CDN) or Lucide
CodeShiki (preferred, vector-clean) or highlight.js
MathKaTeX with auto-render (never MathJax inside iframe)
DiagramsMermaid via CDN, render once on load

Render charts at load time (inline <script> in the slide) so screenshot exporters capture them. Don't rely on interactivity in PPTX/PDF.

Show full SKILL.md (144 more words)Show less

Anti-patterns

  • More than ~40 words of body text per slide.
  • Low contrast (white text on light backgrounds, etc.).
  • vh / vw units — use px. The canvas is fixed-pixel.
  • Images without max-width: 100% (they'll overflow).
  • Fixed-positioned elements depending on viewport (position: fixed).
  • Custom fonts loaded via @font-face from arbitrary URLs.
  • Multiple <section class="slide"> nested inside each other.

Editing

Users can touch up text inline with the Edit button on the page. Keep markup semantic — use <h1>, <h2>, <p>, <ul> rather than a sea of <div>s — so the WYSIWYG editor's text selection and the exporter's text-overlay extraction both work cleanly.

Export

The PDF export is vector text. The PPTX and Google Slides exports embed each slide as a high-DPI image plus an invisible text overlay so users can select, copy, and search the text in PowerPoint / Keynote / Slides. Don't ship interactive controls — they won't survive the export.

© Fergana-Labs, MIT. 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 docs/skills/slides of Fergana-Labs/stash.

Open the folder on GitHubat commit 6c88d16

Compare with similar skills

Slides 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.

Slides compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Slides this skillFergana-Labs/stash335—~912Automated safety check: PassMIT
Image To Editable Pptningzimu/image-to-editable-ppt-skill2.8k—~4.3kAutomated safety check: PassMIT
Slidesfcakyon/claude-codex-settings1.2k1 repos~1.1kAutomated safety check: PassMIT
Ppt Image FirstNyxTides/ppt-image-first1.2k—~1.6kAutomated safety check: PassApache-2.0
Vibe to Agentic Engineering Frameworkshanraisshan/claude-code-best-practice67k—~3.3kAutomated safety check: PassMIT
Gpt Image2 PptJuneYaooo/gpt-image2-ppt-skills1.3k—~8.9kAutomated safety check: NotesApache-2.0

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Questions about Slides

What does Slides do?

How to build presentation slide decks as HTML pages. An agent skill from Fergana-Labs/stash. Slides is an agent skill from Fergana-Labs/stash. How to build presentation slide decks as HTML pages.

When should I use Slides?

Slides fits situations like: tasks that involve Slides and decks.

How do I install Slides in Claude Code?

Run `npx skills add Fergana-Labs/stash --skill slides -a claude-code`. Or copy the skill folder (docs/skills/slides in Fergana-Labs/stash) into .claude/skills/slides in your project. Claude Code loads it when a task matches its description.

How do I install Slides in Codex?

Run `npx skills add Fergana-Labs/stash --skill slides -a codex`. Or copy the skill folder (docs/skills/slides in Fergana-Labs/stash) into .agents/skills/slides in your project. Codex loads it when a task matches its description.

Can I use Slides 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 Fergana-Labs/stash --skill slides -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/slides, .gemini/skills/slides, .github/skills/slides and .opencode/skills/slides in your project.

What does Slides need to run?

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

Does Slides access the network?

SKILL.md names 2 domains. In commands or code: cdn.tailwindcss.com and cdn.jsdelivr.net; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.

Is Slides 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 Slides use?

Slides is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Slides use?

About 912 tokens (SKILL.md is roughly 3.6k 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 Slides?

Skills that share tags, products or a category with Slides: Image To Editable Ppt (ningzimu/image-to-editable-ppt-skill, 2.8k stars), Slides (fcakyon/claude-codex-settings, 1.2k stars), Ppt Image First (NyxTides/ppt-image-first, 1.2k stars) and Vibe to Agentic Engineering Framework (shanraisshan/claude-code-best-practice, 67k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Slides?

Fergana-Labs (a GitHub organization) maintains it in Fergana-Labs/stash, which has 335 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 9, 2026.

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