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Agent skill

Threejs Capacitor iOS

by chongdashu in chongdashu/vibejam-starter-pack

Build and ship Three.js apps on Capacitor iOS with Vite and Swift Package Manager: GLTF loading, assetsindex animation UI, OrbitControls mouse/touch mappings, and iOS sync/run troubleshooting.

No licenceAuto-check passedMobile

Install Threejs Capacitor iOS

skills CLI
$ npx skills add chongdashu/vibejam-starter-pack --skill threejs-capacitor-ios -a claude-code

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

GitHub CLI
$ gh skill install chongdashu/vibejam-starter-pack threejs-capacitor-ios --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/chongdashu/vibejam-starter-pack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/threejs-capacitor-ios .claude/skills/threejs-capacitor-ios && 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
threejs-capacitor-ios
GitHub stars
149
Token cost
~1.6k tokens
SKILL.md length
821 words
Files
4 (incl. references)
Skills in repo
11
Repo updated
First seen
Licence
None found

At a glance

Build and ship Three.js apps on Capacitor iOS with Vite and Swift Package Manager: GLTF loading, assetsindex animation UI, OrbitControls mouse/touch mappings, and iOS sync/run troubleshooting.

  • Works in 5 steps: Project Shape → Animation Contract via assets_index.json → Controls: Desktop and Touch → …
  • Tasks that involve Cross-platform mobile apps
  • SKILL.md covers Philosophy: Two Runtimes, One…, Quick Start Workflow, Implementation Guidelines and Anti-Patterns to Avoid, plus 3 more sections
  • Calls npx and npm

What it does

Threejs Capacitor iOS is an agent skill from chongdashu/vibejam-starter-pack. Build and ship Three.js apps on Capacitor iOS with Vite and Swift Package Manager: GLTF loading, assetsindex animation UI, OrbitControls mouse/touch mappings, and iOS sync/run troubleshooting.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/capacitor-ios-spm-workflow.md`, `references/gotchas.md` and `references/threejs-animation-index-pattern.md`).

It sits in Mobile, covering Cross-platform mobile apps and 3D graphics and WebGL. It works with iOS, Three.js, Vite and Swift. The repository describes itself as: Free Vibe Jam starter pack — battle-tested ThreeJS and Phaser agent skills, starter projects, and prompts.

When your agent uses it

  • Tasks that involve Cross-platform mobile apps
  • Tasks that involve 3D graphics and WebGL

Example prompts

  • “/threejs-capacitor-ios”

Requirements

  • Node.js

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Project Shape
  2. Animation Contract via assets_index.json
  3. Controls: Desktop and Touch
  4. Performance and Stability Guardrails
  5. Capacitor iOS Integration

What it can do on your machine

Read from SKILL.md and the folder at commit 6793771. 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:

    • npx
    • npm

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

  • Network

    No URLs in SKILL.md. Its commands use npx and npm, 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

Threejs Capacitor iOS loads about 1.6k tokens when it runs, and up to ~2.7k if it reads all its reference files. Until then it costs about 54 tokens; SKILL.md has 821 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
~1.6k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2.7k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 821 words (~1,638 tokens).

“Build interactive Three.js apps that run in browser and ship in an iOS native shell via Capacitor. This skill focuses on the integration boundary where most breakage happens: web build output, animation contracts, controls, and native sync/run workflow.”

— opening of SKILL.md by chongdashu
name
threejs-capacitor-ios
metadata.short-description
Three.js + Capacitor iOS workflow

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (references) in .agents/skills/threejs-capacitor-ios of chongdashu/vibejam-starter-pack.

  • SKILL.md
  • references/capacitor-ios-spm-workflow.md
  • references/gotchas.md
  • references/threejs-animation-index-pattern.md

Open the folder on GitHubat commit 6793771

Compare with similar skills

Threejs Capacitor iOS 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.

Threejs Capacitor iOS compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Threejs Capacitor iOS this skillchongdashu/vibejam-starter-pack149—~1.6kAutomated safety check: PassNone
Animationskingstinct/react-native-healthkit716—~937Automated safety check: PassMIT
Animationssoftware-mansion-labs/skills291—~1.1kAutomated safety check: PassNone
Swift iOSericrisco/rsc-harness174—~3kAutomated safety check: PassMIT
Threejs Gameplay Systemsvalkor-ai/loom1.2k1 repos~1.4kAutomated safety check: PassApache-2.0
New ExperimentTresjs/tres3.8k—~782Automated safety check: PassMIT

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Works with

Categories

Questions about Threejs Capacitor iOS

What does Threejs Capacitor iOS do?

Build and ship Three.js apps on Capacitor iOS with Vite and Swift Package Manager: GLTF loading, assetsindex animation UI, OrbitControls mouse/touch mappings, and iOS sync/run troubleshooting. Threejs Capacitor iOS is an agent skill from chongdashu/vibejam-starter-pack.js apps on Capacitor iOS with Vite and Swift Package Manager: GLTF loading, assetsindex animation UI, OrbitControls mouse/touch mappings, and iOS sync/run troubleshooting.

When should I use Threejs Capacitor iOS?

Threejs Capacitor iOS fits situations like: tasks that involve Cross-platform mobile apps; tasks that involve 3D graphics and WebGL.

How do I install Threejs Capacitor iOS in Claude Code?

Run `npx skills add chongdashu/vibejam-starter-pack --skill threejs-capacitor-ios -a claude-code`. Or copy the skill folder (.agents/skills/threejs-capacitor-ios in chongdashu/vibejam-starter-pack) into .claude/skills/threejs-capacitor-ios in your project. Claude Code loads it when a task matches its description.

How do I install Threejs Capacitor iOS in Codex?

Run `npx skills add chongdashu/vibejam-starter-pack --skill threejs-capacitor-ios -a codex`. Or copy the skill folder (.agents/skills/threejs-capacitor-ios in chongdashu/vibejam-starter-pack) into .agents/skills/threejs-capacitor-ios in your project. Codex loads it when a task matches its description.

Can I use Threejs Capacitor iOS 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 chongdashu/vibejam-starter-pack --skill threejs-capacitor-ios -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/threejs-capacitor-ios, .gemini/skills/threejs-capacitor-ios, .github/skills/threejs-capacitor-ios and .opencode/skills/threejs-capacitor-ios in your project.

What does Threejs Capacitor iOS need to run?

Going by SKILL.md and its folder, Threejs Capacitor iOS needs the command-line tools its instructions call (npx and npm). Our summary lists: Node.js.

Does Threejs Capacitor iOS access the network?

SKILL.md contains no URLs. Its commands use npx and npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Threejs Capacitor iOS 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 Threejs Capacitor iOS use?

No licence was found for Threejs Capacitor iOS or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Threejs Capacitor iOS use?

About 1.6k tokens (SKILL.md is roughly 6.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1k tokens, read only when the agent opens those files.

What are the alternatives to Threejs Capacitor iOS?

Skills that share tags, products or a category with Threejs Capacitor iOS: Animations (kingstinct/react-native-healthkit, 716 stars), Animations (software-mansion-labs/skills, 291 stars), Swift iOS (ericrisco/rsc-harness, 174 stars) and Threejs Gameplay Systems (valkor-ai/loom, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Threejs Capacitor iOS?

chongdashu (a GitHub user) maintains it in chongdashu/vibejam-starter-pack, which has 149 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on April 15, 2026.

Source: chongdashu/vibejam-starter-pack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.