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Phaser Gamedev Skill · notque | DecimalAI

codingby notque

Phaser Gamedev Skill

notque/phaser-gamedev

Source notque/vexjoy-agent ↗License MIT

Phaser 3 2D game dev: scenes, physics, tilemaps, sprites, polish.

SkillScore82Maintained

Automatic

Coding pack

Last verified 8/27/2026

What it changes

Passed 18 of 22 test cases with the skill, and 13 of 22 without it.

Without skill59%

With skill82%

Checks it passed that the model alone missed

The physics configuration specifies Matter.js physics engine.
Console logging calls are removed from production game scripts.
The physics debug setting is disabled in the game configuration.

and 3 more in the full report

5 fixed13 passed either way4 still failing0 broke

Pass-rate lift: +23 pp
Tokens: +51%
Agent turns: 0%
Response time: -12%

Model gemini-3.6-flashMeasured 8/27/2026v218 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/notque-phaser-gamedev/SKILL.md https://app.decimal.ai/s/notque-phaser-gamedev/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add notque-phaser-gamedev, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/notque-phaser-gamedev/ and pins it in .decimal/skills.lock

decimalai skills add notque-phaser-gamedev

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/notque-phaser-gamedev/SKILL.md https://app.decimal.ai/s/notque-phaser-gamedev/SKILL.md

Raw file: /s/notque-phaser-gamedev/SKILL.md ↗ · machine-readable summary at /s/notque-phaser-gamedev.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 5

Prompt

I am building a game where soft bodies, polygon shapes, and complex rotating gears interact with realistic gravity and momentum. Which physics system should be configured?

What was checked, without and with the skill
Checked	Without skill	With skill
The physics configuration specifies Matter.js physics engine.	Missed	Passed

case-11 · gemini-3.6-flash · 8/27/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md133 lines12 files

Phaser Gamedev Skill

Overview

This skill builds complete Phaser 3 2D games using a Phased Construction pattern: DESIGN (plan game type, physics, scenes) → BUILD (scene lifecycle, sprites, tilemaps) → ANIMATE (physics, animation state machines, input) → POLISH (camera effects, particles, tweens, sound, mobile). Targets Phaser 3.60+ throughout.

Scope: Platformers, arcade shooters, top-down RPGs, puzzle games, and side-scrollers — anything 2D in Phaser 3. Use threejs-builder for 3D games, native mobile games, and non-Phaser canvas work.

Reference Loading Table

Signal	Load These Files	Why
`references/core-patterns.md`	`core-patterns.md`	Always
`references/build-scaffolds.md`	`build-scaffolds.md`	Phase 2 BUILD
`references/animate-scaffolds.md`	`animate-scaffolds.md`	Phase 3 ANIMATE
`references/polish-scaffolds.md`	`polish-scaffolds.md`	Phase 4 POLISH
`references/errors.md`	`errors.md`	Error Handling
`references/arcade-physics.md`	`arcade-physics.md`	Arcade physics
`references/tilemaps.md`	`tilemaps.md`	Tilemap / Tiled
`references/spritesheets.md`	`spritesheets.md`	Sprites / animation
`references/performance.md`	`performance.md`	Performance concern
Frame rate must reach a target number	`hill-climb` skill	Measured baseline, profile, accept/revert loop on p1-low FPS
`references/game-feel-patterns.md`	`game-feel-patterns.md`	Polish / juice signal
`references/tilemaps-and-physics.md`	`tilemaps-and-physics.md`	Complex maps / Matter.js

Instructions

Phase 1: DESIGN

Goal: Understand what to build, select the physics system, and plan the scene graph before writing any code.

Core constraints:

Read repository CLAUDE.md before building — local standards override defaults here
Select physics system before any other decision — Arcade (fast AABB), Matter.js (complex shapes), or no physics cannot be mixed per scene without deliberate design
Plan scenes upfront — Boot → Preload → Game → UI is the standard flow; diverge only when the game requires it

Step 1: Identify the game type

Track record

Benchmark

18 / 22

test cases passed, vs 13 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 8/26/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

notque / vexjoy-agent

skills/game/phaser-gamedev/SKILL.md

View on GitHub ↗

License MITImported 8/26/2026Version v2Bundled 11 files

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Phaser Gamedev Skill

Overview

Reference Loading Table

Instructions

Phase 1: DESIGN

Track record

Benchmark

Adoption

SkillSafety

Source

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