A plugin guide for designing browser games with attention to the build process and the details that make them enjoyable.

Use it when creating or refining browser games, including their structure, interaction, and overall player experience.

It helps an agent make game projects feel considered instead of stopping at a basic technical demonstration.

game-craft — Plugin by kyh

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.

Claude Code

/plugin marketplace add kyh/vibedgames

agentmods

npx agentmods add plugins/kyh/vibedgames/game-craft

Clone the repo

git clone --depth 1 https://github.com/kyh/vibedgames

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

game-craft 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 3d 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.

plugins/game-craft/.claude-plugin/plugin.json · 9 lines

What it actually says

{
  "name": "game-craft",
  "description": "Make browser games have taste — the build order and craft that separate a tech demo from something fun.",
  "version": "1.0.0",
  "author": {
    "name": "vibedgames"
  }
}

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.

3d ago First seen · 9 lines scan A 388f28fab813

Subscribe to this mod's changes

game-craft is a plugin published in the GitHub repository kyh/vibedgames (55 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-30.

Game development game multiplayer nextjs realtime supabase

game-craft

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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