Borrowing it
Nothing to install: this file belongs to IvanMurzak/Godot-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.
curl -O https://raw.githubusercontent.com/IvanMurzak/Godot-MCP/main/CLAUDE.mdgit clone --depth 1 https://github.com/IvanMurzak/Godot-MCPWrote 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/instructions/ivanmurzak/godot-mcp/claude-md)<a href="https://agentmods.dev/instructions/ivanmurzak/godot-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/ivanmurzak/godot-mcp/claude-md/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/instructions/ivanmurzak/godot-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/ivanmurzak/godot-mcp/claude-md.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 | $0.04753 | $0.04753 |
| Opus 5 | $0.02377 | $0.02377 |
| Sonnet 5 | $0.00951 | $0.00951 |
| Haiku 4.5 | $0.00475 | $0.00475 |
Grade B, and why
Godot-MCP CLAUDE.md scanned grade B with 2 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 9d 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
curl -s -X POST http://localhost:5300/api/system-tools/ping -H "Content-Type: application/json" -d '{}' Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -X POST http://localhost:5300/api/system-tools/ping -H "Content-Type: application/json" -d '{}' How it starts
The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — Godot-MCP
Godot-MCP bridges LLMs (Claude, Cursor, Copilot, …) with the Godot editor
via the Model Context Protocol — the Godot-engine sibling of Unity-MCP.
Sub-projects: addons/godot_mcp/ (the Godot editor addon, a Godot.NET.Sdk C# project), cli/ (the
godot-cli npm package — the Godot analog of unity-mcp-cli), and Godot-MCP.Tests/ (the CI xUnit
suite). The MCP server is NOT in this repo — the addon consumes the shared
GameDev-MCP-Server. See CLI (godot-cli) and
Server (shared GameDev-MCP-Server) below.
The addon is the heart of the repo. A [Tool] EditorPlugin (GodotMcpPlugin) boots on editor load,
installs the main-thread dispatcher, builds a Reflector with Godot type converters, and connects to an
MCP server (cloud ai-game.dev by default, or a custom local server) over the reused
com.IvanMurzak.McpPlugin SignalR client. The MCP/reflection stack is not forked — it is consumed
from nuget.org as PackageReferences and the pins are owned by the upstream release pipelines (never bump
them here). The reused pins are frozen at com.IvanMurzak.ReflectorNet 5.4.0 and
com.IvanMurzak.McpPlugin 8.3.0 (in Godot-MCP.csproj, mirrored by Godot-MCP.Tests/ and the infra
testbed) — keep all three in lockstep; never bump here. (6.10.0 carries the shared engine-agnostic
com.IvanMurzak.McpPlugin.AgentConfig module the addon consumes for AI-agent configurators — registry +
AiAgentConfig + AgentConfiguratorDescription — replacing the addon's retired local copy; it also carries
the WaitForImmediateTeardown API + opt-in bounded-reconnect this addon uses for the godot#78513 reload fix.)
Tool families
Tools live in addons/godot_mcp/Runtime/Tools/ (pure-managed families) and addons/godot_mcp/Editor/Tools/ (editor-only families) — one [AiToolType] partial class Tool_<Family> per family,
with each tool method ([AiTool("<name>", ...)] + [Description]) in its own partial-class file. Tool
names mirror Unity-MCP where sensible. 42 built-in tools across 12 families — the 12 families:
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.
- 9d ago First seen · 259 lines · 4,753 tokens per session scan B a34ae6d8b223
Godot-MCP CLAUDE.md is an instructions file published in the GitHub repository IvanMurzak/Godot-MCP (236 stars, last pushed 5d ago), licensed Apache-2.0. It adds 4,753 tokens to every session, about $0.0238 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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