expert-lsp/expert

Health v2 · maintenance only

Adoption not part of the score

2043 stars · 107 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Expert is the official Language Server Protocol (LSP) implementation for the Elixir programming language, merging the community ElixirLS, Lexical, and Next LS projects. It provides editor features like completions, go-to-definition, diagnostics, code actions, formatting, and symbol search via a standalone binary that editors connect to over stdio.

Use cases

• set up Elixir language support in VS Code or Neovim
• get completions and go-to-definition for Elixir projects
• show Elixir compiler diagnostics inline in my editor
• format Elixir code automatically on save
• search document and workspace symbols in Elixir
• replace ElixirLS with the official Elixir language server

When to choose

• you write Elixir and want official, actively developed LSP support
• you want a single language server consolidating ElixirLS, Lexical, and Next LS
• you need per-project Elixir version handling and workspace folders
• you want installable via Homebrew, Nix, Mason, mise, or GitHub releases

When to avoid

• you need Credo or other diagnostic plugin integrations, which are not yet supported
• you require a stable 1.0 release, as the project is still in alpha working toward its first release
• you rely on features specific to the older community servers that have not been ported yet

Facets

cli-tool · maturity experimental

editor developer-tools parser programming-languages developer-tools text-editors windows cross-platform editor-plugin elixir language-server-protocol lsp code-intelligence editor-integration linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="expert-lsp/expert")