Jack — 3D Creator Portfolio Agent Skill

Use this plugin when the user wants a dark, premium 3D-creator / designer portfolio landing page: a full-viewport hero with a…

Context cost
58.4k tokensestimated from the bundle, loaded when it triggers
Bundle
3 files · 233.4 kBtext throughout, nothing executable
Licence
Apache-2.0the author’s own terms
Last change
—v0.1.0
Servers it uses
Noneruns standalone

What it does

Use this plugin when the user wants a dark, premium 3D-creator / designer portfolio landing page: a full-viewport hero with a gradient-text headline and a mouse-following magnetic 3D portrait, a scroll-driven horizontal image marquee, an About section with corner 3D decorations and character-by-character scroll-reveal text, a white Services list, and sticky-stacking project cards. Invoke for '3D creator portfolio', 'designer landing page', 'creative portfolio with magnetic hero', or when the user references the Jack 3D Creator template.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

design
Filed under

Design & Media

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md13.1 kB · preview
--- name: 3d-creator-portfolio version: 0.1.0 od: mode: prototype surface: web scenario: design preview: type: html entry: example.html design_system: requires: false ---
16# Jack — 3D Creator Portfolio
17
18Produce a dark, premium **3D-creator portfolio landing page**. A complete, rendered reference implementation ships beside this skill at example.html — **start from it**. Copy example.html, then adjust copy and data; do not rewrite the CSS or invent a new visual language. The seed already encodes the exact tokens, gradient text, magnetic-hover portrait, scroll marquee, char-reveal text, sticky-stacking cards, and responsive behavior described below.
19
20This is the authoritative build brief. Follow it exactly — the named colors, gradients, fonts, sizes, image URLs, and animations are locked.
21
22**Inlined images (critical):** example.html ships the hero portrait and the four About-section 3D decorations as **inlined data:image/webp;base64,… URIs** — keep those exactly as they are. Do **not** swap them back for the original shrug-person-78902957.figma.site/... URLs: that host rate-limits / 403s inside the preview sandbox and renders as broken images. When you copy the seed, the inlined images come with it; only replace one if the user supplies their own asset, and prefer a data URI over a remote URL. The 21 motionsites marquee GIFs and the 9 higgs/cloudfront project images stay as remote URLs (large stable CDNs).
23
24## Stack
25
26- Default output: a single self-contained HTML file (the example.html seed) using vanilla CSS + JS. It already includes everything inline.
27- If the user explicitly asks for the React project: port the seed faithfully to **React 18 + TypeScript + Vite + Tailwind CSS + Framer Motion + lucide-react**. Same tokens, same markup structure, same animations. Section order: HeroSection → MarqueeSection → AboutSection → ServicesSection → ProjectsSection → ContactSection (footer). Do not change the design while porting.
28
29## Global styles — locked
30
31- Background #0C0C0C on html, body, #root, and the main wrapper.
32- Font: **Kanit** (Google Fonts, weights 300–900), 'Kanit', sans-serif.
33- Page title: Jack — 3D Creator.
34- Global reset: box-sizing: border-box; margin: 0; padding: 0.
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md1,696 words
Files3
LicenceApache-2.0
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈190
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
58,160
on trigger
The instruction body and 2 supporting files, read only when the skill fires.
29.2%
of a 200k window
Ten skills this size would not fit in the window together.
050k100k150k200k context window

58.4k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

3 files, 233.4 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md13.1 kB
  • example.html201.4 kB
  • open-design.json18.9 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 3 files you can review in full before installing. The Apache-2.0 licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Jack — 3D Creator Portfolio · 58.4k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/jack-3d-creator-portfolio/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/jack-3d-creator-portfolio" ] && { [ ! -e .claude/skills/jack-3d-creator-portfolio ] || { mv .claude/skills/jack-3d-creator-portfolio "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/jack-3d-creator-portfolio" .claude/skills/ && echo "Installed .claude/skills/jack-3d-creator-portfolio"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add nexu-io/jack-3d-creator-portfolio

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/jack-3d-creator-portfolio/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/jack-3d-creator-portfolio/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/jack-3d-creator-portfolio" ] && { [ ! -e ~/.claude/skills/jack-3d-creator-portfolio ] || { mv ~/.claude/skills/jack-3d-creator-portfolio "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/jack-3d-creator-portfolio" ~/.claude/skills/ && echo "Installed ~/.claude/skills/jack-3d-creator-portfolio" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/jack-3d-creator-portfolio/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as 3d-creator-portfolio in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, jack-3d-creator-portfolio.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Version0.1.0
Publishedno release date on file
PriceFree
Referencenexu-io/jack-3d-creator-portfolio

Versions

v0.1.0 is what is on the shelf; no release here carries a date. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

v0.1.0
  • No earlier releases have been published to the marketplace.
Pinning

The install command always fetches the release that is current the day you run it — v0.1.0 today — and cannot ask for an earlier one. The copy on your disk does not change until you run it again.

Reviews

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Anybody with an account, one review each. It carries the version that was current when you wrote it, and the publisher may reply once.

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