mcp-csharp-create

mcp-csharp-create is a skill for Claude Code from F-U-S-E-E/FuseDevelopmentGroup. It costs 141 tokens per session (2,559 once invoked), scanned A, original, AGPL-3.0.

A .NET toolkit guide for creating MCP servers—programs that let AI agents call your tools, prompts, and resources. It covers starting a project and connecting it over local or HTTP communication.

In plain words
What is it for?
Use it to create a new C# MCP server, add tools, prompts, or resources, and configure local or HTTP connections.
Why use it?
It removes the guesswork from setting up an MCP server and choosing how it should communicate. It also explains where each type of server code belongs.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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 skills/f-u-s-e-e/fusedevelopmentgroup/mcp-csharp-create
Any agent
npx skills add F-U-S-E-E/FuseDevelopmentGroup --skill mcp-csharp-create
Clone the repo
git clone --depth 1 https://github.com/F-U-S-E-E/FuseDevelopmentGroup

Made for: Claude Code.

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.

agentmods badge for mcp-csharp-create

README.md
[![agentmods](https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/mcp-csharp-create.svg)](https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/mcp-csharp-create)
Your own site
<a href="https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/mcp-csharp-create"><img src="https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/mcp-csharp-create.svg" alt="Measured on agentmods" height="20"></a>
Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,559 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00141 $0.02559
Opus 5 $0.00071 $0.01280
Sonnet 5 $0.00028 $0.00512
Haiku 4.5 $0.00014 $0.00256

Measured 3d ago against content hash 2dd3b8c7c7b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

mcp-csharp-create 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 3d 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/mcp-csharp-create/SKILL.md · 267 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

2 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.

  1. 3d ago First seen · 267 lines · 141 tokens per session scan A 2dd3b8c7c7b8

Subscribe to this mod's changes

mcp-csharp-create is a skill published in the GitHub repository F-U-S-E-E/FuseDevelopmentGroup (22 stars, last pushed 13d ago), licensed AGPL-3.0. It adds 141 tokens to every session and 2,559 once invoked, about $0.0007 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 2026-09-03.

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