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FlatRedBall2: Skill for Claude Code

.claude/skills/sample-project-setup/SKILL.md

sample-project-setup is a skill for Claude Code from vchelaru/FlatRedBall2. It costs 50 tokens per session (1,427 once invoked), scanned A, original, MIT.

A checklist for creating FlatRedBall2 sample projects, including a C# project file and MonoGame content-pipeline setup. MonoGame's content pipeline converts game assets into files the game can load.

In plain words
What is it for?
It helps create sample projects, configure their .csproj files, prepare placeholder art and level files, and diagnose missing-manifest or missing-tool errors.
Why use it?
It reduces build failures caused by missing project settings, content files, or tooling manifests when starting a sample.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is vchelaru/FlatRedBall2's own configuration. It tells Claude Code how to work on FlatRedBall2 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 FlatRedBall2 configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is <Project Path="../../src/FlatRedBall2.csproj" />.

not rated 15repo changed 6d ago A scan SkillSpector: pass 50 tokens original MIT
View source ↗ vchelaru/FlatRedBall2
Reuse

Borrowing it

Nothing to install: this file belongs to vchelaru/FlatRedBall2. 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/vchelaru/FlatRedBall2/main/.claude/skills/sample-project-setup/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/vchelaru/FlatRedBall2

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,427 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.01427
Opus 5.5 $0.00020 $0.00571
Sonnet 5.5 $0.00010 $0.00285
Haiku 4.5 $0.00005 $0.00143

Measured 6d ago against content hash 1d57755d3fd5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sample-project-setup 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 6d 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/skills/sample-project-setup/SKILL.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sample Project Setup

See content-boundary skill first. New projects should scaffold placeholder content files (TMX, Gum, coefficients JSON) rather than hardcoding content in C#. Set the project up so the human can drop in real art, levels, and UI without recompiling.

How to create a new sample project (.csproj) under samples/. Follow this checklist exactly.

Do not read existing sample files to verify these templates. The content below is authoritative. Only read source files if something fails and you have a specific reason to doubt the template.

Checklist

1. Create the directory and .csproj

The minimal .csproj (KNI desktop, SDL2/OpenGL):

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>WinExe</OutputType>
    <TargetFramework>net10.0</TargetFramework>
    <RollForward>Major</RollForward>
    <PublishReadyToRun>false</PublishReadyToRun>
    <TieredCompilation>false</TieredCompilation>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <KniPlatform>DesktopGL</KniPlatform>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="nkast.Xna.Framework" />
    <PackageReference Include="nkast.Xna.Framework.Graphics" />
    <PackageReference Include="nkast.Xna.Framework.Game" />
    <PackageReference Include="nkast.Xna.Framework.Input" />
    <PackageReference Include="nkast.Xna.Framework.Content" />
    <PackageReference Include="nkast.Xna.Framework.Audio" />
    <PackageReference Include="nkast.Xna.Framework.Media" />
    <PackageReference Include="nkast.Kni.Platform.SDL2.GL" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\..\src\FlatRedBall2.csproj" />
  </ItemGroup>
</Project>

No Version attribute on any PackageReference — the repo uses NuGet Central Package Management, so every version is pinned once in the root Directory.Packages.props. If restore complains a package has no version, add it there.

Do not pin Apos.Shapes — version flows transitively from the engine. Its shader is embedded in the assembly, so it needs no content-pipeline wiring.

Read the full file on GitHub · 129 lines

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. 6d ago Changed · -72 lines · -17 tokens per session 1d57755d3fd5
  2. 1mo ago First seen · 201 lines · 67 tokens per session scan A a1f3b4d56263

Subscribe to this mod's changes

sample-project-setup is a skill published in the GitHub repository vchelaru/FlatRedBall2 (15 stars, last pushed today), licensed MIT. It adds 50 tokens to every session and 1,427 once invoked, about $0.0002 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 2026-09-04.

C# and .NETGame developmentLanguages
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