phaser-v3-to-v4-migration

phaser-v3-to-v4-migration is a skill for Claude Code, Codex from bullish0x/GameStudio. It costs 120 tokens per session (4,807 once invoked), scanned A, a copy of v3-to-v4-migration, MIT.

A guide to moving a game from Phaser 3 to Phaser 4, including renderer changes, replaced effects and masks, camera updates, textures, shaders, and lighting.

In plain words
What is it for?
Use it to plan an upgrade, find breaking changes, replace old rendering code, and work through a Phaser 3-to-4 migration.
Why use it?
It shows what must change when older Phaser 3 code uses interfaces that no longer work the same way in Phaser 4.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to plan an upgrade, find breaking changes, replace old rendering code, and work through a Phaser 3-to-4 migration.

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Install with agentmods
npx agentmods add skills/bullish0x/gamestudio/phaser-v3-to-v4-migration
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add bullish0x/GameStudio --skill phaser-v3-to-v4-migration
Clone the repo
git clone --depth 1 https://github.com/bullish0x/GameStudio

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for phaser-v3-to-v4-migration

README.md
[![agentmods](https://agentmods.dev/badge/skills/bullish0x/gamestudio/phaser-v3-to-v4-migration/github.svg)](https://agentmods.dev/skills/bullish0x/gamestudio/phaser-v3-to-v4-migration)
Your own site
<a href="https://agentmods.dev/skills/bullish0x/gamestudio/phaser-v3-to-v4-migration"><img src="https://agentmods.dev/badge/skills/bullish0x/gamestudio/phaser-v3-to-v4-migration/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for phaser-v3-to-v4-migration

Your own site · 80×15
<a href="https://agentmods.dev/skills/bullish0x/gamestudio/phaser-v3-to-v4-migration"><img src="https://agentmods.dev/badge/skills/bullish0x/gamestudio/phaser-v3-to-v4-migration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,807 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00120 $0.04807
Opus 5 $0.00060 $0.02403
Sonnet 5 $0.00024 $0.00961
Haiku 4.5 $0.00012 $0.00481

Measured 8d ago against content hash 0b8120531549, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

phaser-v3-to-v4-migration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to v3-to-v4-migration — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/phaser-v3-to-v4-migration/SKILL.md · 431 lines

How it starts

The opening of the file, as written. The whole thing — 431 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Phaser v3 to v4 Migration Guide

This guide covers everything you need to change when upgrading a Phaser v3 project to Phaser v4. It is organized from highest-impact changes to smaller details, so you can work through it top-to-bottom.

Related skills: ../phaser-v4-new-features/SKILL.md, ../phaser-game-setup-and-config/SKILL.md, ../phaser-filters-and-postfx/SKILL.md


Table of Contents

  1. Renderer: Pipelines to Render Nodes
  2. Canvas Renderer Deprecated
  3. FX and Masks are now Filters
  4. Tint System
  5. Camera System
  6. Texture Coordinates and GL Orientation
  7. DynamicTexture and RenderTexture
  8. Shader API
  9. GLSL Loading
  10. Lighting
  11. TileSprite
  12. Graphics and Shape
  13. Geometry: Point Replaced by Vector2
  14. Math Constants
  15. Data Structures
  16. Round Pixels
  17. Removed Game Objects
  18. Removed Plugins and Entry Points
  19. Removed Utilities and Polyfills
  20. Spine Plugins
  21. Miscellaneous Breaking Changes
  22. Migration Checklist

1. Renderer: Pipelines to Render Nodes

Phaser v4 contains a brand-new WebGL renderer. The entire rendering pipeline from v3 has been replaced. This is the single biggest change in v4.

What was removed:

The v3 Pipeline system has been removed entirely. Pipelines frequently held multiple responsibilities (e.g. the Utility pipeline handled various different rendering tasks) and each had to manage WebGL state independently, leading to conflicts where one pipeline could break another's assumptions.

Read the full file on GitHub · 431 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 431 lines · 120 tokens per session scan A 0b8120531549

Subscribe to this mod's changes

phaser-v3-to-v4-migration is a skill published in the GitHub repository bullish0x/GameStudio (12 stars, last pushed 3mo ago), licensed MIT. It adds 120 tokens to every session and 4,807 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to v3-to-v4-migration, differing in 4 lines, and is treated as a copy.

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