Name: build-mcp-server-dotnet
Author: merceralex397-collab

Imported from merceralex397-collab/alex-stack (dev/my-skills/specific-skills/mcp-servers/build-mcp-server-dotnet/SKILL.md). Install upstream with npx skills add merceralex397-collab/alex-stack --skill build-mcp-server-dotnet. Copyright stays with the author.

Build MCP Server — .NET

Route by lifecycle:

mcp-csharp-create — server shape, tools, modern HTTP, MRTR, Apps, Tasks, AOT, and MEAI.
mcp-csharp-test — unit, integration, modern HTTP, and conformance coverage.
mcp-csharp-publish — PackAsTool/dnx, MCPB, containers, and deployment.

Provenance: These subskills are derived from dotnet/skills/plugins/dotnet-ai/skills/mcp-csharp-* under MIT. They are updated independently for MCP 2026-07-28. See ../THIRD-PARTY-NOTICES.md.

Choose ModelContextProtocol 2.0.0 for new C# core work. Add ModelContextProtocol.Extensions.Apps or ModelContextProtocol.Extensions.Tasks 2.0.0 only when that extension is needed; neither is bundled into the core package. HTTP is stateless by default; MapMcp() plus WithHttpTransport() handles the modern endpoint. Do not expose McpProtocolVersions in application code: it is internal.

{ "ocm": "1", "id": "merceralex397-collab-alex-stack-build-mcp-server-dotnet", "kind": "skill", "name": "build-mcp-server-dotnet", "description": "Use when building, testing, publishing, packaging, or extending an MCP server in C# or .NET, especially for ModelContextProtocol 2.0.0, MRTR, Apps, Tasks, AOT, or Microsoft.Extensions.AI.", "publisher": "merceralex397-collab", "version": "1.0.0", "capabilities": { "domains": [ "general" ], "tags": [ "skill-md", "github" ], "languages": [ "en" ] }, "quality_prior": 0.6, "examples": [ "Use when building, testing, publishing, packaging, or extending an MCP server in C# or .NET, especially for ModelContextProtocol 2.0.0, MRTR, Apps, Tasks, AOT, or Microsoft.Extensions.AI." ], "primary": false, "metadata": { "source": { "provider": "github", "repository": "https://github.com/merceralex397-collab/alex-stack", "path": "dev/my-skills/specific-skills/mcp-servers/build-mcp-server-dotnet/SKILL.md", "ref": "506daf62bee1710823c449a65343a1a884779bbc", "url": "https://github.com/merceralex397-collab/alex-stack/blob/506daf62bee1710823c449a65343a1a884779bbc/dev/my-skills/specific-skills/mcp-servers/build-mcp-server-dotnet/SKILL.md", "key": "merceralex397-collab/alex-stack/dev/my-skills/specific-skills/mcp-servers/build-mcp-server-dotnet/SKILL.md" } }, "instructions": "# Build MCP Server — .NET\n\nRoute by lifecycle:\n\n- `mcp-csharp-create` — server shape, tools, modern HTTP, MRTR, Apps, Tasks, AOT, and MEAI.\n- `mcp-csharp-test` — unit, integration, modern HTTP, and conformance coverage.\n- `mcp-csharp-publish` — `PackAsTool`/`dnx`, MCPB, containers, and deployment.\n\n> **Provenance:** These subskills are derived from `dotnet/skills/plugins/dotnet-ai/skills/mcp-csharp-*` under MIT. They are updated independently for MCP 2026-07-28. See `../THIRD-PARTY-NOTICES.md`.\n\nChoose `ModelContextProtocol` 2.0.0 for new C# core work. Add `ModelContextProtocol.Extensions.Apps", "cost": { "context_tokens": 224 } }

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