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html5-game-editor: Skill for Cursor

.cursor/skills/architecture-change/SKILL.md

architecture-change is a skill for Cursor from andvolodko/html5-game-editor. It costs 59 tokens per session (644 once invoked), scanned A, original, MIT.

A planning workflow for changes that affect several software packages, saved data formats, or architectural boundaries. A package is a separately organized part of a codebase with its own responsibilities and dependencies.

In plain words
What is it for?
Use it for changes to package boundaries, scene data schemas, assets, runtime and editor features, renderers, persistence, or project-server APIs.
Why use it?
Cross-package changes can accidentally break dependency direction, persistence, runtime behavior, or editor behavior. The workflow directs developers to the relevant project documentation before implementation.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is andvolodko/html5-game-editor's own configuration. It tells Cursor how to work on html5-game-editor itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything html5-game-editor configures →

not rated 14repo 1mo ago A scan 59 tokens original MIT
View source ↗ andvolodko/html5-game-editor andvolodko.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to andvolodko/html5-game-editor. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/andvolodko/html5-game-editor/master/.cursor/skills/architecture-change/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/andvolodko/html5-game-editor

Made for: Cursor.

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.

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README.md
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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.

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Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 644 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 original No closer match found 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 $0.00059 $0.00644
Opus 5.5 $0.00024 $0.00258
Sonnet 5.5 $0.00012 $0.00129
Haiku 4.5 $0.00006 $0.00064

Measured 2mo ago against content hash 952500b12870, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

architecture-change 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 2mo 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.

.cursor/skills/architecture-change/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architecture Change

Use this workflow for changes that cross package boundaries or alter persisted formats. Do not use it for a localized Inspector/UI/test fix.

Persisted JSON field/union work: follow .cursor/skills/modify-scene-schema/SKILL.md for the schema pipeline (this skill stays the planning wrapper). Node types / asset kinds / runtime vs editor: add-node-type, add-asset-type, implement-runtime-feature, implement-editor-feature.

1. Orient, then read only what you need

Consult PROJECT.md for repository orientation. Developer index: docs/README.md.

Read only the detailed docs that match this change. Do not load the full docs/ set.

If the change involves Read
Package boundaries, quality, errors, performance docs/architecture.md
Scene/domain schema, components, serialization, prefabs docs/scene-model.md
Script components (defineComponent) docs/guides/add-a-script-component.md
Asset database, import, generated files docs/assets.md
Aseprite compile docs/aseprite.md
Editor core / commands / selection docs/editor.md
Runtime, game builds, optional renderers docs/runtime.md
Pixi / Three adapters, hybrid layers docs/renderers.md
project-server APIs, path confinement docs/project-server.md
Collaboration / locking docs/collaboration.md

2. Check invariants

If the request would violate an invariant in PROJECT.md, stop and propose an alternative. In particular:

  • runtime must not depend on editor;
  • domain must not store Pixi/Three instances;
  • assets use stable assetIds;
  • browser FS goes through project-server;
  • optional renderers stay optional;
  • persisted formats stay versioned.

3. Plan before coding

Inspect existing packages and public APIs. Produce a short plan covering:

  1. affected packages and dependency direction;
  2. public API changes;
  3. persistence/schema/migration impact;
  4. undo/redo impact;
  5. renderer vs domain split;
  6. tests.

Read the full file on GitHub · 69 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. 2mo ago First seen · 69 lines · 59 tokens per session scan A 952500b12870

Subscribe to this mod's changes

architecture-change is a skill published in the GitHub repository andvolodko/html5-game-editor (14 stars, last pushed 1mo ago), licensed MIT. It adds 59 tokens to every session and 644 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

2d3dPlanningeditorgame-developmentgame-editorgame-engine
Related

architecture-change compared with skills from other repositories

architecture-change next to 6 skills from other repositories
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