# Node.js Debugger

> Use this tool when you need to debug Node.js applications programmatically, enabling AI agents to manage and interact with debugging sessions through the Chrome DevTools Protocol. It solves problems related to automated testing, code execution flow understanding, and AI-assisted debugging, providing inputs such as Node.js processes and outputs like debug ports and session state monitoring resources. Ideal for use cases like AI-assisted code debugging, automated testing workflows, and educational scenarios, this tool streamlines the debugging process with comprehensive features like breakpoint management and expression evaluation.

Canonical page: https://skillsregistry.net/skills/qckfx-node-debugger  
JSON: https://api.skillsregistry.net/v1/skills/qckfx-node-debugger

## Description

This Node.js debugger MCP server by qckfx provides programmatic debugging capabilities for AI agents through the Chrome DevTools Protocol, enabling full process lifecycle management and interactive debugging sessions. The implementation spawns Node.js processes with `--inspect-brk` debugging enabled, manages debug ports automatically, and exposes comprehensive debugging tools including breakpoint management, step-through execution, call stack inspection, and expression evaluation in debug contexts. Built with TypeScript and the chrome-remote-interface library, it handles the complexities of debugger attachment, execution state management, and provides both MCP tools for debugging operations and resources for session state monitoring, making it valuable for AI-assisted code debugging, automated testing workflows, and educational scenarios where agents need to understand code execution flow.

## Trust

- **Trust score (0–1):** 0.65
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-02

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/qckfx-node-debugger)
- **Repository:** <https://github.com/qckfx/node-debugger-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": "qckfx-node-debugger"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/qckfx-node-debugger` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/qckfx-node-debugger/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