herb-lsp

herb-lsp-plugin

herb-language-server support for Claude Code. Provides LSP features (diagnostics, completions, hover, go-to-definition, etc.) for .erb, .herb, and .html.erb files.

Prerequisites

Install herb-language-server:

npm install -g @herb-tools/language-server

Installation

Add to your ~/.claude/settings.json:

{
  "extraKnownMarketplaces": {
    "herb-lsp-plugin": {
      "source": {
        "source": "github",
        "repo": "ether-moon/herb-lsp-plugin"
      }
    }
  },
  "enabledPlugins": {
    "herb-lsp-plugin@herb-lsp-plugin": true
  }
}

Supported File Types

Extension	Language ID
.erb	erb
.herb	herb
.html.erb	erb

How It Works

This plugin registers herb-language-server as an LSP server via Claude Code's plugin system. Once installed, Claude Code automatically starts the server when you open a project containing .erb or .herb files.

Plugin Structure

plugins/herb-lsp-plugin/
├── .claude-plugin/
│   └── plugin.json       # Plugin metadata with lspServers reference
└── .lsp.json             # LSP server configuration

LSP Configuration

{
  "herb": {
    "command": "herb-language-server",
    "args": ["--stdio"],
    "extensionToLanguage": {
      ".erb": "erb",
      ".herb": "herb",
      ".html.erb": "erb"
    }
  }
}

License

MIT