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.
/plugin marketplace add dotnet/skillsnpx agentmods add plugins/dotnet/skills/marketplacegit clone --depth 1 https://github.com/dotnet/skillsGrade A, and why
dotnet-agent-skills 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "dotnet-agent-skills",
"owner": {
"name": ".NET Team at Microsoft"
},
"plugins": [
{
"name": "dotnet",
"source": "./plugins/dotnet",
"description": "C# language server (LSP) integration for coding agents and high-level .NET development skills."
},
{
"name": "dotnet-advanced",
"source": "./plugins/dotnet-advanced",
"description": "Advanced .NET and C# skills for niche scenarios that are not part of the core dotnet plugin."
},
{
"name": "dotnet-data",
"source": "./plugins/dotnet-data",
"description": "Skills for .NET data access and Entity Framework related tasks."
},
{
"name": "dotnet-diag",
"source": "./plugins/dotnet-diag",
"description": "Skills for .NET performance investigations, debugging, and incident analysis."
},
{
"name": "dotnet-msbuild",
"source": "./plugins/dotnet-msbuild",
"description": "Comprehensive MSBuild and .NET build skills: failure diagnosis, performance optimization, code quality, and modernization.",
"mcpServers": {
"binlog": {
"type": "stdio",
"command": "dotnet",
"args": [
"dnx",
"Microsoft.AITools.BinlogMcp",
"--yes",
"--prerelease"
],
"tools": ["*"]
}
}
},
{
"name": "dotnet-nuget",
"source": "./plugins/dotnet-nuget",
"description": "NuGet and .NET package management: dependency management and modernization."
},
{
"name": "dotnet-upgrade",
"source": "./plugins/dotnet-upgrade",
"description": "Skills for migrating and upgrading .NET projects across framework versions, language features, and compatibility targets."
},
{
"name": "dotnet-maui",
"source": "./plugins/dotnet-maui",
"description": "Skills for .NET MAUI development: environment setup, diagnostics, troubleshooting, navigation, data bindWhat 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.
- 2d ago First seen · 96 lines scan A 2b662f907f23
dotnet-agent-skills is a plugin published in the GitHub repository dotnet/skills (5,297 stars, last pushed 3d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-30.
Other plugins, from other repositories
nextjs
Official Next.js skills: adopt and optimize Cache Components, adopt Partial Prefetching, and verify runtime behavior against a running dev server.
nextjs
Official Claude Code plugin marketplace for Next.js, serving the skills that ship in the vercel/next.js repository.
claude-plugins-official
Directory of popular Claude Code extensions including development tools, productivity plugins, and MCP integrations.
knowledge-work-plugins
Plugin marketplace listing 97 plugins: noibu, productivity, enterprise-search, cowork-plugin-management, sales.
ecc
Plugin marketplace listing 1 plugin: ecc.
ecc
Harness-native ECC plugin for engineering teams - 68 agents, 286 skills, 94 legacy command shims, reusable hooks, rules, MCP conventions, and operator workflows for Claude Code plus adjacent agent harnesses.