Agent skill

Oneshot Website

by cafe3310 in cafe3310/public-agent-skills

Generate immersive, one-shot single-file HTML websites with embedded CSS and JS.

Apache-2.0Auto-check passedFrontend & Design

Install Oneshot Website

skills CLI
$ npx skills add cafe3310/public-agent-skills --skill oneshot-website -a claude-code

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

GitHub CLI
$ gh skill install cafe3310/public-agent-skills oneshot-website --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/cafe3310/public-agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills_parked/oneshot-website .claude/skills/oneshot-website && 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
oneshot-website
GitHub stars
255
Token cost
~1.5k tokens
SKILL.md length
704 words
Files
3
Skills in repo
29
Repo updated
First seen
Licence
Apache-2.0

At a glance

Generate immersive, one-shot single-file HTML websites with embedded CSS and JS.

  • Works in 5 steps: Elegant restaurant storefront -- dark… → Luxury perfume house -- mist particles,… → Antiquarian bookshop at night -- warm… → …
  • Writeup showcases
  • SKILL.md covers When to invoke, The Generation Prompt, Hosting and Example Output Names
  • Calls vercel and python3

What it does

Oneshot Website is an agent skill from cafe3310/public-agent-skills. Generate immersive, one-shot single-file HTML websites with embedded CSS and JS. No external images. Hostable on CodePen or Vercel. Use for writeup showcases, AI capability demos, and portfolio pieces.

Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `oneshot-website.md` and `themes.md`).

It sits in Frontend & Design, covering HTML artifacts. It works with Vercel. The repository describes itself as: personal agent skills for better QoL. The licence is Apache-2.0.

When your agent uses it

  • Writeup showcases
  • AI capability demos
  • Portfolio pieces

Example prompts

  • “/oneshot-website”

Requirements

  • Python 3

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Elegant restaurant storefront -- dark marble, candlelight, menu sections appearing like courses being served
  2. Luxury perfume house -- mist particles, scent notes drifting, amber and obsidian palette
  3. Antiquarian bookshop at night -- warm amber light, floating text fragments, vellum textures in CSS
  4. Deep sea research station -- bioluminescent creatures via canvas, pressure gauge UI, midnight blue
  5. Jazz club and vinyl lounge -- smoke rings via SVG, waveform visualizations, sepia and amber

What it can do on your machine

Read from SKILL.md and the folder at commit 6c45501. 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

    Shell commands in SKILL.md call:

    • vercel
    • python3

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

  • Network

    No URLs in SKILL.md. Its commands use vercel, which can reach the network depending on how they are called.

    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

Oneshot Website loads about 1.5k tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 704 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~54
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k

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 cafe3310/public-agent-skills at commit 6c45501, republished under its Apache-2.0 licence (© cafe3310). 704 words, ~1,470 tokens.

Download SKILL.mdSave it as .claude/skills/oneshot-website/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
oneshot-website
description
Generate immersive, one-shot single-file HTML websites with embedded CSS and JS. No external images. Hostable on CodePen or Vercel. Use for writeup showcases, AI capability demos, and portfolio pieces.
author
github/jpcaparas
depends_on_binary
python3

Oneshot Website

Generate a stunning, self-contained single-file HTML website -- fully immersive, scroll-driven, cinematic. No external images, no build step. Drop into CodePen or push to Vercel as-is.

Inspired by high-end digital brand experiences and the kind of creative coding that makes people say "this was done in one shot?"

When to invoke

Use when:

  • Demonstrating an LLM's creative + technical range for writeups or articles
  • Creating a stunning demo to embed in a CodePen
  • Producing a portfolio piece or proof-of-concept landing page
  • Showing off one-shot generation capabilities

The Generation Prompt

When this skill is invoked, generate the full HTML file using this master approach:


Write complete HTML, CSS, and JavaScript in a single self-contained file for an immersive, cinematic website about [THEME].

The site must feel like a living brand experience -- sections that breathe as you scroll, typography that has weight and presence, and atmosphere you can almost feel.

Theme Selection

If no theme is specified, choose one from the repertoire in references/themes.md that hasn't been recently used. Never default to clockwork, clocks, or time-perception themes.

Recommended defaults (rotate through these):

  1. Elegant restaurant storefront -- dark marble, candlelight, menu sections appearing like courses being served
  2. Luxury perfume house -- mist particles, scent notes drifting, amber and obsidian palette
  3. Antiquarian bookshop at night -- warm amber light, floating text fragments, vellum textures in CSS
  4. Deep sea research station -- bioluminescent creatures via canvas, pressure gauge UI, midnight blue
  5. Jazz club and vinyl lounge -- smoke rings via SVG, waveform visualizations, sepia and amber
Technical Constraints (NON-NEGOTIABLE)
  • Single file: All HTML, CSS, JS in one .html file
  • No external images: Use CSS gradients, SVG inline art, Canvas API, or unicode/emoji symbols only
  • No CDN dependencies for core visuals (Google Fonts via @import is acceptable)
  • No frameworks: Vanilla JS only. No React, Vue, Alpine, etc.
  • Static: Must work as a static file (no server-side logic)
  • Self-hostable: Drop into Vercel as index.html or paste into CodePen
Show full SKILL.md (383 more words)Show less
Quality Bar

This is NOT a simple landing page. It should feel like it was commissioned by a world-class brand agency. Include:

Visual craft:

  • Scroll-triggered reveals with Intersection Observer (not scroll events -- use IO for performance)
  • Parallax depth on at least 2 layers (background moves slower than foreground)
  • Typography that has character -- mix of serif and sans, large display type with tight tracking
  • Color palette of 3-4 tones maximum, applied with intention (not rainbow)
  • Subtle animated texture or grain overlay via CSS (repeating SVG noise, pseudo-element with opacity)

Interaction:

  • Cursor that responds subtly (not gimmicky -- a small dot or trail at most)
  • Hover states that feel intentional (transforms, not just color changes)
  • At least one section with a scrolling marquee or horizontal text ticker
  • Navigation that changes opacity/style on scroll

Atmosphere:

  • Hero section with large, centered typographic statement
  • At minimum 5 distinct sections with scroll transitions between them
  • Footer with subtle details (coordinates, a fictional address, a motto in a second language)
  • A moment of surprise -- one section that does something unexpected (inverted colors, a canvas animation, text that rearranges)

Polish details:

  • font-display: swap on any web fonts
  • will-change: transform on animated elements
  • Smooth scroll behavior on html
  • Mobile-responsive (flexbox/grid, no fixed px widths on containers)
  • prefers-reduced-motion media query to disable animations for accessibility
Output Format

Produce two files:

1. PROMPT.md -- the exact one-shot prompt that will be used to generate this site.

2. index.html -- the complete single-file website. Start with <!DOCTYPE html> and end with </html>. No explanation before or after the HTML.

Format of PROMPT.md:

markdown
# One-Shot Prompt

**Theme**: [theme name]
**Generated**: [date]
**Model**: [model name and version]

## Prompt

[The complete verbatim prompt that would reproduce this exact site if fed to any capable LLM fresh]

## Notes

- [Any notable techniques used]
- [Hosting: CodePen / Vercel / local]

Name fictional brands with restraint: evocative, not punny. Think: "Maison Vorieux", "Sublevel 7", "The Meridian Press", not "Tasty Bistro" or "Cool Restaurant".


Hosting

CodePen
  1. Create new Pen
  2. Paste entire contents into the HTML panel
  3. Enable "Full Page" view
Vercel
bash
mkdir my-site && cd my-site
# save as index.html
vercel --prod
Local preview
bash
open index.html   # macOS
# or
python3 -m http.server 3000

Example Output Names

The generated site should have a real name. Examples by theme:

ThemeBrand NameTagline
RestaurantMaison VorieuxFine dining, honest cooking
PerfumeAtelier ObscurScent as memory
BookshopThe Meridian PressEst. 1887
Deep SeaSublevel 7Research below the thermocline
JazzThe Amber RoomLive music every Thursday
BotanicalSelva StudioPlants for considered spaces
MineralCabinet BrutSpecimen traders since 1952
ObservatoryStation NuitWatching since 1901
Night MarketHawker's AlmanacEvery dish has a story

© cafe3310, 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

SKILL.md and 2 other files in skills_parked/oneshot-website of cafe3310/public-agent-skills.

  • SKILL.md
  • oneshot-website.md
  • themes.md

Open the folder on GitHubat commit 6c45501

Compare with similar skills

Oneshot Website 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.

Oneshot Website compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Oneshot Website this skillcafe3310/public-agent-skills255—~1.5kAutomated safety check: PassApache-2.0
Previewhanamizuki/solopreneur152—~5.2kAutomated safety check: PassMIT
Claude Designmateaix/mateclaw1.2k3 repos~4.9kAutomated safety check: PassApache-2.0
Htmldropooiyeefei/ccc495—~5.2kAutomated safety check: WarnMIT
LobeHub Interactive Prototypelobehub/lobehub83k—~1.6kAutomated safety check: PassCustom licence
Paperclip Pagepaperclipai/paperclip99k—~1kAutomated safety check: PassMIT

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Works with

Questions about Oneshot Website

What does Oneshot Website do?

Generate immersive, one-shot single-file HTML websites with embedded CSS and JS. Oneshot Website is an agent skill from cafe3310/public-agent-skills. Generate immersive, one-shot single-file HTML websites with embedded CSS and JS.

When should I use Oneshot Website?

Oneshot Website fits situations like: writeup showcases; AI capability demos; portfolio pieces.

How do I install Oneshot Website in Claude Code?

Run `npx skills add cafe3310/public-agent-skills --skill oneshot-website -a claude-code`. Or copy the skill folder (skills_parked/oneshot-website in cafe3310/public-agent-skills) into .claude/skills/oneshot-website in your project. Claude Code loads it when a task matches its description.

How do I install Oneshot Website in Codex?

Run `npx skills add cafe3310/public-agent-skills --skill oneshot-website -a codex`. Or copy the skill folder (skills_parked/oneshot-website in cafe3310/public-agent-skills) into .agents/skills/oneshot-website in your project. Codex loads it when a task matches its description.

Can I use Oneshot Website 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 cafe3310/public-agent-skills --skill oneshot-website -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/oneshot-website, .gemini/skills/oneshot-website, .github/skills/oneshot-website and .opencode/skills/oneshot-website in your project.

What does Oneshot Website need to run?

Going by SKILL.md and its folder, Oneshot Website needs the command-line tools its instructions call (vercel and python3). Our summary lists: Python 3.

Does Oneshot Website access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Oneshot Website 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 Oneshot Website use?

Oneshot Website 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 Oneshot Website use?

About 1.5k tokens (SKILL.md is roughly 5.9k 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 Oneshot Website?

Skills that share tags, products or a category with Oneshot Website: Preview (hanamizuki/solopreneur, 152 stars), Claude Design (mateaix/mateclaw, 1.2k stars), Htmldrop (ooiyeefei/ccc, 495 stars) and LobeHub Interactive Prototype (lobehub/lobehub, 83k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Oneshot Website?

cafe3310 (a GitHub user) maintains it in cafe3310/public-agent-skills, which has 255 GitHub stars. The repository holds 29 skills in this directory. The repository was last updated on June 26, 2026.

Source: cafe3310/public-agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.