love2d-mcp: Instructions file for Claude Code

CLAUDE.md

love2d-mcp CLAUDE.md is an instructions file for Claude Code from shayarnett/love2d-mcp. It costs 331 tokens per session, scanned A, original, MIT.

A repository guide for an MCP server that lets coding agents interact with a running LÖVE2D game, a Lua-based game engine.

In plain words
What is it for?
Understanding the MCP server, connecting it to a running LÖVE2D game, querying or changing game state, running Lua code, and testing with the MCP Inspector.
Why use it?
It explains the server’s communication method, game integration, development workflow, and testing needs so changes fit the existing design.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is shayarnett/love2d-mcp's own configuration. It tells Claude Code how to work on love2d-mcp 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 love2d-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to shayarnett/love2d-mcp. 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/shayarnett/love2d-mcp/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/shayarnett/love2d-mcp

Made for: Claude Code.

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Per session 331 This file is loaded in full into every session.
When invoked 331 The same file — it is already loaded in full.
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 $0.00331 $0.00331
Opus 5.5 $0.00132 $0.00132
Sonnet 5.5 $0.00066 $0.00066
Haiku 4.5 $0.00033 $0.00033

Measured 2mo ago against content hash dd91fd7a11cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

love2d-mcp CLAUDE.md 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.

CLAUDE.md · 34 lines

What it actually says

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

This is an MCP (Model Context Protocol) server for LÖVE2D game development. MCP servers expose tools and resources that allow LLMs to interact with external systems.

Architecture

MCP Server Implementation

  • The server exposes tools for interacting with a running LÖVE2D game instance
  • Communication happens via stdio (standard input/output) following the MCP protocol
  • Tools should enable querying game state, modifying entities, and executing Lua code in the LÖVE2D runtime

LÖVE2D Integration

  • LÖVE2D uses Lua as its scripting language
  • The game engine provides callbacks like love.load(), love.update(dt), love.draw()
  • Games are typically structured with main.lua as the entry point
  • Common modules: graphics, audio, physics, filesystem, keyboard, mouse

Development Workflow

Testing

  • MCP servers are typically tested using the MCP Inspector tool
  • LÖVE2D games can be run with the love command pointing to the game directory
  • Integration testing requires both the MCP server and a running LÖVE2D instance

Key Considerations

  • The MCP server needs a way to communicate with the LÖVE2D process (socket, shared memory, or file-based communication)
  • Lua code execution should be sandboxed appropriately for security
  • State queries should be efficient to avoid impacting game performance
  • Tool responses should follow MCP protocol specifications
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 · 34 lines · 331 tokens per session scan A dd91fd7a11cd

Subscribe to this mod's changes

love2d-mcp CLAUDE.md is an instructions file published in the GitHub repository shayarnett/love2d-mcp (12 stars, last pushed 1y ago), licensed MIT. It adds 331 tokens to every session, about $0.0013 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.

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