Roslyn C# language server adapter for Claude Code and other agents. Runs as an LSP server (`claude-roslyn-lsp lsp`) that mediates Microsoft's roslyn-language-server so navigation and edit-time diagnostics work reliably, and as an MCP server (`claude-roslyn-lsp mcp`) that exposes semantic refactoring - rename, code actions, fix-all, formatting and on-demand diagnostics - to models that would otherwise reach for grep and sed. Pure BCL, Native AOT, no compiler packages of its own.
- No known advisories
- MIT
Version checks
Not run yet – package checks are being switched on. It runs from a package on your machine, so instead of uptime we will install and start each new version.
This server lists no remote endpoint or package we can write a config for yet.
For agents: the install prompt
Every step above as one Markdown text, for an assistant installing it for you.
# Install the MCP server claude-roslyn-lsp (`io.github.lahma/claude-roslyn-lsp`)
Its page: https://plug.directory/servers/io.github.lahma/claude-roslyn-lsp
plug.directory has no install config for this server: its listing names no remote endpoint and no package that starts over stdio from npm, PyPI or an OCI registry. Read the install steps in its own repository instead.
Known advisories
None known for its packages.
Checked 2026-10-28 against OSV.dev and deps.dev.
From NuGet. We have not checked this server yet. Report a problem