* feat(skills): add dotnet-mcp-builder, deprecate csharp-mcp-server-generator
Adds a comprehensive skill for building MCP (Model Context Protocol)
servers in C#/.NET against the official ModelContextProtocol 1.x NuGet
packages. Covers both transports (STDIO, Streamable HTTP — SSE is
deprecated) and every primitive in the current MCP spec (2025-11-25):
tools, prompts, resources, elicitation (form + URL mode), sampling,
roots, completions, logging, and MCP Apps. Includes a thin .NET MCP
client reference and testing guidance (MCP Inspector + in-memory
transport for unit tests).
Steers the model toward the current stable 1.x packages instead of the
0.x previews it tends to pin by default, and enforces the STDIO
stdout/stderr trap.
Also deprecates the existing csharp-mcp-server-generator skill, which
predates ModelContextProtocol 1.0 and only covered a subset of the
current spec. Its SKILL.md now redirects users to dotnet-mcp-builder so
existing install URLs keep working without surprises.
* fix: address PR review from aaronpowell
- Delete csharp-mcp-server-generator skill (rather than deprecating it)
- Update mcp-apps.md pitfalls section to reference .NET Tool.Meta type
instead of the serialized _meta JSON property names
- Rebuild docs/README.skills.md
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* chore: remove C# MCP development plugin files
* chore: remove csharp-mcp-development plugin entry from marketplace
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Adrien Clerbois