# ANTLR4 MCP Server

> Use this tool when you need to debug and manipulate ANTLR4 grammars, as it provides the ability to read, analyze, modify, and debug grammars, solving issues related to grammar development and optimization. It takes ANTLR4 grammars as input and outputs modified or debugged grammars, enabling efficient grammar refinement. Ideal for use in Claude Desktop applications requiring advanced grammar processing capabilities.

Canonical page: https://skillsregistry.net/skills/natl-set-antlr4-mcp  
JSON: https://api.skillsregistry.net/v1/skills/natl-set-antlr4-mcp

## Description

An MCP server that gives Claude AI the ability to read, analyze, modify, and debug ANTLR4 grammars, enabling grammar debugging and manipulation for Claude Desktop.

## Trust

- **Trust score (0–1):** 0.24
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/lnorkloy79)
- **Repository:** <https://github.com/natl-set/antlr4-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "natl-set-antlr4-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/natl-set-antlr4-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/natl-set-antlr4-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt