rule

A set of instructions for making single-file HTML5 games work on Remix, a platform for building, playing, and sharing browser games. It uses the Farcade game software library to report game state and respond to player controls.

In plain words
What is it for?
Use it when building or adapting a single-HTML-file game for Remix. It covers loading the game library, reporting scores, adding vibration feedback, restarting games, and muting or unmuting audio.
Why use it?
It helps connect a game to Remix's expected events, so the platform knows when the game is ready, when it ends, and how to handle replay and sound settings.

Cursor rule

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.

agentmods
npx agentmods add rules/sam-scolari/remix-vscode/rule
Clone the repo
git clone --depth 1 https://github.com/Sam-Scolari/remix-vscode
Per session 328 This file is loaded in full into every session.
When invoked 328 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00328 $0.00328
Opus 5 $0.00164 $0.00164
Sonnet 5 $0.00066 $0.00066
Haiku 4.5 $0.00033 $0.00033

Measured 2d ago against content hash 70f2b2fde4d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rule 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 2d 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.

src/rule.mdc · 36 lines

What it actually says

Remix (formerly known as Farcade) is a platform for building, playing, and sharing HTML5 games. This platform uses the @farcade/game-sdk library (documentation here: https://www.npmjs.com/package/@farcade/game-sdk) with single HTML file games.

  1. Add this script tag to load the SDK in the head section:
  1. Add these SDK calls to the game:

// When the game is fully loaded and ready to play: window.FarcadeSDK.singlePlayer.actions.ready();

// When the game is over (replace scoreValue with the actual score): window.FarcadeSDK.singlePlayer.actions.gameOver({ score: scoreValue });

// For haptic feedback on important interactions (like jumping or hitting obstacles): window.FarcadeSDK.singlePlayer.actions.hapticFeedback();

// Add this to handle play again requests: window.FarcadeSDK.on('play_again', () => { // Reset the game state here // For example: resetGame(), startNewGame(), etc. });

// Add this to handle mute/unmute: window.FarcadeSDK.on('toggle_mute', (data) => { // Set game audio based on data.isMuted // For example: setMuted(data.isMuted) });

  1. Make sure to call the ready event when the game is fully loaded and playable.
  2. Call gameOver when the player loses or completes the game.
  3. Add haptic feedback for important game events.
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. 2d ago First seen · 36 lines · 328 tokens per session scan A 70f2b2fde4d8

Subscribe to this mod's changes

rule is a cursor rule published in the GitHub repository Sam-Scolari/remix-vscode (2 stars, last pushed 1y ago), licensed MIT. It adds 328 tokens to every session, about $0.0016 per session on Opus 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.