# MCP JS Debugger

> Use this tool when you need to debug JavaScript and TypeScript applications, as it enables setting breakpoints, stepping through code, and inspecting variables through the Chrome DevTools Protocol. It solves problems related to identifying and fixing errors in web applications, allowing for efficient debugging and troubleshooting. Ideal for use when developing or maintaining complex web applications, it accepts code inputs and outputs debugging information and variable evaluations.

Canonical page: https://skillsregistry.net/skills/johngrimes-mcp-js-debugger  
JSON: https://api.skillsregistry.net/v1/skills/johngrimes-mcp-js-debugger

## Description

Enables AI assistants to debug JavaScript and TypeScript applications by connecting to Chrome DevTools Protocol-compatible debuggers, allowing them to set breakpoints, step through code, inspect variables, and evaluate expressions with full source map support.

## Trust

- **Trust score (0–1):** 0.93
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** maps-location
- **Updated:** 2026-09-19

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/o3f2adr7fd)
- **Repository:** <https://github.com/johngrimes/mcp-js-debugger>

## 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": "johngrimes-mcp-js-debugger"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/johngrimes-mcp-js-debugger` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/johngrimes-mcp-js-debugger/pull`

---
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