LSP Server

ast-grep

Requires Language Server Binary

This LSP server requires nodeto be installed on your system. Make sure it's available in your PATH before enabling.

Add to Your Project

Copy this JSON into your .lsp.json to enable this server

Add to your .lsp.json or plugin.json:

{
  "lspServers": {
    "ast-grep": {
      "command": "node",
      "extensionToLanguage": {
        ".js": "javascript",
        ".md": "markdown",
        ".sh": "shellscript",
        ".cjs": "javascript",
        ".css": "css",
        ".htm": "html",
        ".jsx": "javascriptreact",
        ".mjs": "javascript",
        ".yml": "yaml",
        ".zsh": "shellscript",
        ".bash": "shellscript",
        ".html": "html",
        ".json": "json",
        ".scss": "scss",
        ".yaml": "yaml"
      },
      "args": [
        "${CLAUDE_PLUGIN_ROOT}/bin/lsp-shim.mjs",
        "ast-grep",
        "lsp",
        "-c",
        "${CLAUDE_PROJECT_DIR}/sgconfig.yml"
      ]
    }
  }
}

Supported Languages

File extensions mapped to language identifiers

javascript

.js.cjs.mjs

markdown

.md

shellscript

.sh.zsh.bash

css

.css

html

.htm.html

javascriptreact

.jsx

yaml

.yml.yaml

json

.json

scss

.scss

Details

Server configuration and transport parameters

Commandnode

Transportstdio

Arguments

Command-line arguments passed to the server process

${CLAUDE_PLUGIN_ROOT}/bin/lsp-shim.mjsast-greplsp-c${CLAUDE_PROJECT_DIR}/sgconfig.yml

Advanced Configuration

Initialization options and workspace settings

Startup Timeout:15000ms

Restart on Crash:Yes

Stats

LanguageJavaScript

Stars0

MaintenanceExcellent

Last CommitJul 11, 2026

Actions

Plugins (1)

Stats

Actions