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Agent skill

Phaser Gamedev

by chongdashu in chongdashu/vibejam-starter-pack

Build 2D games with Phaser 3 framework. An agent skill from chongdashu/vibejam-starter-pack.

No licenceAuto-check passedGame Development

Install Phaser Gamedev

skills CLI
$ npx skills add chongdashu/vibejam-starter-pack --skill phaser-gamedev -a claude-code

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

GitHub CLI
$ gh skill install chongdashu/vibejam-starter-pack phaser-gamedev --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/.claude/skills/phaser-gamedev .claude/skills/phaser-gamedev && 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
phaser-gamedev
GitHub stars
149
Token cost
~1.2k tokens
SKILL.md length
328 words
Files
5 (incl. references)
Skills in repo
11
Repo updated
First seen
Licence
None found

At a glance

Build 2D games with Phaser 3 framework. An agent skill from chongdashu/vibejam-starter-pack.

  • Works in 5 steps: Measure the asset before writing loader… → Character sprites use SQUARE frames: If… → Different animations have different… → …
  • Tasks that involve Sprites and pixel art
  • SKILL.md covers STOP: Before Loading Any…, Reference Files, Architecture Decisions (Make… and Core Patterns, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Phaser Gamedev is an agent skill from chongdashu/vibejam-starter-pack. Build 2D games with Phaser 3 framework. Covers scene lifecycle, sprites, physics (Arcade/Matter), tilemaps, animations, input handling, and game architecture. Trigger: "create phaser game", "add phaser scene", "phaser sprite", "phaser physics", "game development with phaser".

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `references/arcade-physics.md`, `references/performance.md` and `references/spritesheets-nineslice.md`).

It sits in Game Development, covering Sprites and pixel art and Game development. 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 Sprites and pixel art
  • Tasks that involve Game development

Example prompts

  • “create phaser game”
  • “add phaser scene”
  • “phaser sprite”
  • “/phaser-gamedev”

Workflow steps

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

  1. Measure the asset before writing loader code—never guess frame dimensions
  2. Character sprites use SQUARE frames: If you calculate frameWidth=56, try 56 for height first
  3. Different animations have different frame sizes: A run cycle needs wider frames than idle; an attack needs extra width for weapon swing…
  4. Check for spacing: Gaps between frames require spacing: N in loader config
  5. Verify the math: imageWidth = (frameWidth × cols) + (spacing × (cols - 1))

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

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

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

  • Network

    No URLs in SKILL.md.

    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

Phaser Gamedev loads about 1.2k tokens when it runs, and up to ~15k if it reads all its reference files. Until then it costs about 73 tokens; SKILL.md has 328 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~73
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~15k

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 328 words (~1,181 tokens).

“Build 2D browser games using Phaser 3's scene-based architecture and physics systems.”

— opening of SKILL.md by chongdashu
name
phaser-gamedev

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (references) in .claude/skills/phaser-gamedev of chongdashu/vibejam-starter-pack.

  • SKILL.md
  • references/arcade-physics.md
  • references/performance.md
  • references/spritesheets-nineslice.md
  • references/tilemaps.md

Open the folder on GitHubat commit 6793771

Compare with similar skills

Phaser Gamedev 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.

Phaser Gamedev compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Phaser Gamedev this skillchongdashu/vibejam-starter-pack149—~1.2kAutomated safety check: PassNone
Sprite Genaldegad/sprite-gen2.6k—~4.8kAutomated safety check: PassApache-2.0
Asset Pipelinerehan-remade/universal-modder5.8k—~2kAutomated safety check: PassMIT
Spine AnimationGenielabsOpenSource/spine-animation-ai518—~17kAutomated safety check: PassCC-BY-NC-4.0
AI Game Art Pipelineybuild-ai/ai-game-art-pipeline-skill297—~1.1kAutomated safety check: PassMIT
Godot 2D Essentialsjame581/GodotPrompter799—~2.3kAutomated safety check: PassMIT

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Categories

Questions about Phaser Gamedev

What does Phaser Gamedev do?

Build 2D games with Phaser 3 framework. An agent skill from chongdashu/vibejam-starter-pack. Phaser Gamedev is an agent skill from chongdashu/vibejam-starter-pack. Build 2D games with Phaser 3 framework.

When should I use Phaser Gamedev?

Phaser Gamedev fits situations like: tasks that involve Sprites and pixel art; tasks that involve Game development.

How do I install Phaser Gamedev in Claude Code?

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

How do I install Phaser Gamedev in Codex?

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

Can I use Phaser Gamedev 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 phaser-gamedev -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/phaser-gamedev, .gemini/skills/phaser-gamedev, .github/skills/phaser-gamedev and .opencode/skills/phaser-gamedev in your project.

What does Phaser Gamedev need to run?

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

Does Phaser Gamedev 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 Phaser Gamedev 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 Phaser Gamedev use?

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

How many tokens does Phaser Gamedev use?

About 1.2k tokens (SKILL.md is roughly 4.7k 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 14k tokens, read only when the agent opens those files.

What are the alternatives to Phaser Gamedev?

Skills that share tags, products or a category with Phaser Gamedev: Sprite Gen (aldegad/sprite-gen, 2.6k stars), Asset Pipeline (rehan-remade/universal-modder, 5.8k stars), Spine Animation (GenielabsOpenSource/spine-animation-ai, 518 stars) and AI Game Art Pipeline (ybuild-ai/ai-game-art-pipeline-skill, 297 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Phaser Gamedev?

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.