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dotnet-mcp

dotnet-mcp is a skill for Claude Code, Codex from Postpartum-genushyacinthus29/dotnet-skills. It costs 47 tokens per session (2,424 once invoked), scanned A, a copy of mcp, MIT.

A guide for connecting .NET applications through Model Context Protocol (MCP), a standard way for AI hosts and software to exchange tools, prompts, and data.

In plain words
What is it for?
Use it to build or consume MCP servers and clients, expose tools or resources, connect discovered tools to an AI chat client, or publish an MCP server.
Why use it?
It helps make a .NET client or server work correctly with other MCP-compatible software, including choices about local or web connections and supported capabilities.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 10repo +1 yesterday A scan 47 tokens copy · 86% MIT

Good fit Use it to build or consume MCP servers and clients, expose tools or resources, connect discovered tools to an AI chat client, or publish an MCP server.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp
View source ↗ Postpartum-genushyacinthus29/dotnet-skills
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 Postpartum-genushyacinthus29/dotnet-skills --skill dotnet-mcp
Clone the repo
git clone --depth 1 https://github.com/Postpartum-genushyacinthus29/dotnet-skills

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.

agentmods badge for dotnet-mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp/github.svg)](https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp)
Your own site
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp/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.

agentmods 80×15 button for dotnet-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp"><img src="https://agentmods.dev/badge/skills/postpartum-genushyacinthus29/dotnet-skills/dotnet-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,424 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.
Origin 86% copy Near-identical to another mod 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 $0.00047 $0.02424
Opus 5 $0.00023 $0.01212
Sonnet 5 $0.00009 $0.00485
Haiku 4.5 $0.00005 $0.00242

Measured 11d ago against content hash 4230966ecc2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

dotnet-mcp 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 11d 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.

Origin

This is a copy

86% identical to mcp — 33 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/dotnet-mcp/SKILL.md · 219 lines

How it starts

The opening of the file, as written. The whole thing — 219 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP C# SDK for .NET

Trigger On

  • building or consuming MCP servers from a .NET application or library
  • choosing between stdio and HTTP transport for MCP
  • exposing tools, resources, prompts, completions, or logging to an MCP host
  • connecting a .NET app to an existing MCP server and passing discovered tools into IChatClient
  • bootstrapping a minimal MCP client/server from the .NET AI quickstarts or publishing a server to the MCP Registry
  • implementing capability-aware flows such as roots, sampling, elicitation, subscriptions, or session resumption

Use This Skill Instead Of

  • Use dotnet-mcp when protocol interoperability is the requirement.
  • Use dotnet-microsoft-extensions-ai when you only need model/provider abstraction or local tool orchestration without the MCP wire protocol.
  • Use dotnet-microsoft-agent-framework when the main problem is agent orchestration; combine it with dotnet-mcp only when those agents must consume or expose MCP endpoints.
  • Use the .NET AI quickstarts for the very first vertical slice, then come back here to harden transport, capability negotiation, publishing, and host interoperability.

Documentation

References

Load only what the task needs:

  • references/patterns.md - current server/client patterns, transports, capabilities, filters, and chat-client integration
  • references/security.md - safe error handling, auth boundaries, stdio logging hygiene, and defensive tool/resource patterns

Read the full file on GitHub · 219 lines

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. 11d ago First seen · 219 lines · 47 tokens per session scan A 4230966ecc2e

Subscribe to this mod's changes

dotnet-mcp is a skill published in the GitHub repository Postpartum-genushyacinthus29/dotnet-skills (10 stars, last pushed yesterday), licensed MIT. It adds 47 tokens to every session and 2,424 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to mcp, differing in 33 lines, and is treated as a copy.

Backend and APIsC# and .NETLanguagesagent-skillsaiai-agentsalexa-skills-sdkaws-lambdaazure-openaicode-analysis-true
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