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wayzer107/ruby-lsp

v0.1.0Apache-2.0

Use ruby-lsp for Ruby and ERB code navigation and diagnostics in Codex.

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Ruby LSP

Use ruby-lsp for Ruby and ERB code navigation and diagnostics in Codex. Supported source extensions are .rb, .rake, .gemspec, .ru, .erb.

Prerequisites

  • Node.js 22 or newer on the Codex host's PATH.
  • Install Ruby LSP with gem install ruby-lsp. Prepare the project's bundle and use the Ruby version required by the project. Language-server documentation

Use in Codex

After adding the marketplace, install this plugin and start a new Codex conversation.

codex plugin add 'ruby-lsp@codex-plugin-ports'

Ask Codex to use the ruby-lsp language-server tools for your project. Call lsp_start with the absolute project root and poll lsp_status if initialization is pending. Queries use saved files and zero-based UTF-16 positions. The available features and indexing behavior depend on the native server.

Open trusted workspaces. A native language server can run build or project tools while indexing. Stop the workspace with lsp_stop when you finish or before starting another workspace.

Upstream and changes

Adapted from Anthropic's ruby-lsp under the Apache License 2.0. This port keeps the upstream file mappings and uses a local MCP bridge to start the language server and query it from Codex.