A guide to building and debugging games with Godot 4, a game engine, using GDScript or C#. It covers scenes, nodes, signals, movement, reusable resources, and testing tools.

Use it to create or review 2D and 3D gameplay, convert older Godot APIs, implement movement and signals, and test Godot projects.

It helps avoid outdated Godot 3 code and provides consistent patterns for structuring Godot 4 games.

godot — Skill for Claude Code and Codex by ericrisco/rsc-harness

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.

Any agent

npx skills add ericrisco/rsc-harness --skill godot

Clone the repo

git clone --depth 1 https://github.com/ericrisco/rsc-harness

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ericrisco/rsc-harness/godot/github.svg)](https://agentmods.dev/skills/ericrisco/rsc-harness/godot)

Your own site

<a href="https://agentmods.dev/skills/ericrisco/rsc-harness/godot"><img src="https://agentmods.dev/badge/skills/ericrisco/rsc-harness/godot/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ericrisco/rsc-harness/godot"><img src="https://agentmods.dev/badge/skills/ericrisco/rsc-harness/godot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 112 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,940 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00112	$0.03940
Opus 5.5	$0.00045	$0.01576
Sonnet 5.5	$0.00022	$0.00788
Haiku 4.5	$0.00011	$0.00394

Measured 2mo ago against content hash c5362d6e4110, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

godot 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.

skills/godot/SKILL.md · 301 lines

How it starts

The opening of the file, as written. The whole thing — 301 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Godot 4.x (GDScript + C#)

Build 2D and 3D the way the engine is designed: scenes as reusable units, composition over deep node trees, signals for decoupling, static typing for speed and safety. GDScript (typed) is primary; C# parity snippets sit beside it.

Version contract — read first

This is Godot 4.x. Never emit Godot 3 APIs. Godot 4 renamed core nodes, moved annotations behind @, replaced yield with await, and switched signal/file/tween APIs. A Godot 3 snippet will not even parse in 4.x. Before writing or accepting any line, check it against this ban-list:

Never (Godot 3)	Always (Godot 4.x)
`yield(timer, "timeout")`	`await timer.timeout`
`onready var x = ...`	`@onready var x = ...`
`export var hp = 3`	`@export var hp := 3`
`tool` (script mode line)	`@tool` (annotation, first line)
`KinematicBody` / `KinematicBody2D`	`CharacterBody3D` / `CharacterBody2D`
`Spatial`	`Node3D`
`Area` / `RigidBody` / `StaticBody`	`Area3D` / `RigidBody3D` / `StaticBody3D`
`Sprite`	`Sprite2D`
`scene.instance()`	`scene.instantiate()`
`move_and_slide(velocity, UP)` (positional)	set `velocity` property, then `move_and_slide()` — no args
`connect("hit", self, "_on_hit")`	`node.hit.connect(_on_hit)` (Callable)
`File.new()` / `Directory.new()`	`FileAccess.open(...)` / `DirAccess.open(...)`
standalone `Tween` node + `interpolate_property`	`create_tween()` → `tween.tween_property(...)`
`OS.get_ticks_msec` for gameplay timing	`Time.get_ticks_msec()` (OS timing moved to `Time`)
`PoolByteArray` / `PoolVector2Array`	`PackedByteArray` / `PackedVector2Array`

Lifecycle overrides must chain the parent with super() (Godot 3 called it implicitly; Godot 4 does not). If you override _ready, _process, _init, etc. in a script that extends another script defining them, call super() / super._ready() or the base logic silently never runs.

Silent-breakers (compile fine, behave wrong — the dangerous class):

Read the full file on GitHub · 301 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 301 lines · 112 tokens per session scan A c5362d6e4110

Subscribe to this mod's changes

godot is a skill published in the GitHub repository ericrisco/rsc-harness (503 stars, last pushed 2d ago), licensed MIT. It adds 112 tokens to every session and 3,940 once invoked, about $0.0004 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 2026-09-03.

C# and .NET Claude Code Game development agent-skills agentic-ai ai-agents ai-coding cli game-dev gdscript godot godot4

godot next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
godotericrisco/rsc-harness	Skill	503	2d ago	MIT	A	112	Claude Code, Codex
godotalivirgo/Major-AI-Skills	Skill	2	yesterday	MIT	A	26	Claude Code
godot-gdscriptWade-DevCode/awesome-coding-skills-cn	Skill	7	4mo ago	MIT	A	30	Claude Code, Codex
asset-genhtdt/godogen	Skill	7.3k	21d ago	MIT	A	108	Claude Code, Codex
unity-project-architecturemakifbaysal/tasktrooper	Skill	120	16d ago	Apache-2.0	A	56	Claude Code, Codex
godot-csharp-and-gdextensionmakifbaysal/tasktrooper	Skill	120	16d ago	Apache-2.0	A	88	Claude Code, Codex
swallowtailregiellis/godot-mcp-go	Skill	71	28d ago	MIT	A	0	Claude Code, Codex