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.
curl -O https://raw.githubusercontent.com/andvolodko/html5-game-editor/master/.cursor/skills/implement-editor-feature/SKILL.mdgit clone --depth 1 https://github.com/andvolodko/html5-game-editorWrote 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.
[](https://agentmods.dev/skills/andvolodko/html5-game-editor/implement-editor-feature)<a href="https://agentmods.dev/skills/andvolodko/html5-game-editor/implement-editor-feature"><img src="https://agentmods.dev/badge/skills/andvolodko/html5-game-editor/implement-editor-feature/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.
<a href="https://agentmods.dev/skills/andvolodko/html5-game-editor/implement-editor-feature"><img src="https://agentmods.dev/badge/skills/andvolodko/html5-game-editor/implement-editor-feature.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00069 | $0.01257 |
| Opus 5.5 | $0.00028 | $0.00503 |
| Sonnet 5.5 | $0.00014 | $0.00251 |
| Haiku 4.5 | $0.00007 | $0.00126 |
Grade A, and why
implement-editor-feature 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.
How it starts
The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Implement Editor Feature
Use this workflow whenever implementing a meaningful editor feature that does not already have a dedicated vertical-slice skill.
Related skills (prefer the specialized one)
| If the work is mainly… | Use |
|---|---|
| New Hierarchy/Node-menu type + renderer | .cursor/skills/add-node-type/SKILL.md |
| New catalogue format / importer | .cursor/skills/add-asset-type/SKILL.md |
| Undoable mutation | .cursor/skills/add-editor-command/SKILL.md |
| New dockview panel | .cursor/skills/add-editor-panel/SKILL.md |
| Persisted JSON shape | .cursor/skills/modify-scene-schema/SKILL.md |
Gameplay / GameRuntime / scripts |
.cursor/skills/implement-runtime-feature/SKILL.md or create-game-component |
| Multi-package / boundaries | .cursor/skills/architecture-change/SKILL.md |
| Docs after a user-visible change | .cursor/skills/update-documentation/SKILL.md |
| Jank / FPS | .cursor/skills/performance-audit/SKILL.md |
Keep using this skill for planning a feature that spans several of those layers, or for editor work that is not one of those slices.
Step 1 — Understand the request
Restate internally:
- what user behavior is required;
- which editor panels are involved;
- whether runtime behavior is involved;
- whether persisted data changes;
- whether asset processing changes.
Do not immediately generate code.
Consult PROJECT.md for repository orientation when needed. Developer index: docs/README.md. Read only the docs that match this change. Do not load unrelated documentation for localized Inspector, UI, styling, or test-only work.
| Layer | Doc |
|---|---|
| Scene / domain / serialization | docs/scene-model.md |
| Script components | docs/guides/add-a-script-component.md |
| Assets | docs/assets.md |
| Editor core / UI / commands | docs/editor.md |
| Runtime / games | docs/runtime.md |
| Pixi / Three | docs/renderers.md |
| project-server | docs/project-server.md |
| Collaboration | docs/collaboration.md |
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.
- 2mo ago First seen · 236 lines · 69 tokens per session scan A 47d11c2c98fd
implement-editor-feature is a skill published in the GitHub repository andvolodko/html5-game-editor (14 stars, last pushed 1mo ago), licensed MIT. It adds 69 tokens to every session and 1,257 once invoked, about $0.0003 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.
implement-editor-feature compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| implement-editor-featureandvolodko/html5-game-editor | Skill | 14 | 1mo ago | MIT | A | 69 | Cursor |
| self-evolvetettethu/VibeGame | Skill | 367 | 24d ago | Apache-2.0 | A | 50 | Claude Code, Codex |
| artist-self-evolvetettethu/VibeGame | Skill | 367 | 24d ago | Apache-2.0 | A | 62 | Claude Code, Codex |
| vibegame-buildtettethu/VibeGame | Skill | 367 | 24d ago | Apache-2.0 | A | 42 | Claude Code, Codex |
| vibegame-starttettethu/VibeGame | Skill | 367 | 24d ago | Apache-2.0 | A | 61 | Claude Code, Codex |
| vibegame-edittettethu/VibeGame | Skill | 367 | 24d ago | Apache-2.0 | A | 57 | Claude Code, Codex |
| hearth-feelechoo19/hearth | Skill | 44 | 1mo ago | MIT | A | 97 | Claude Code |