node-inspect-debugger

node-inspect-debugger is a skill for Claude Code, Codex from johnson7788/MultiUserClaw. It costs 19 tokens per session (2,962 once invoked), scanned A, a copy of node-inspect-debugger, MIT.

A toolkit for debugging Node.js programs with breakpoints, step-by-step execution, call stacks, local variables, and expression evaluation.

In plain words
What is it for?
Use it to investigate failing tests, UI or child-process problems, and performance issues such as CPU use or memory snapshots.
Why use it?
It shows what the program is doing at a specific point when logging is not enough, including inside running processes and closures.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for hermes-agent. Also seen: built for hermes-agent.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/bb/hermes-agent/ui-tui.

Good fit Use it to investigate failing tests, UI or child-process problems, and performance…

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for node-inspect-debugger

README.md
[![agentmods](https://agentmods.dev/badge/skills/johnson7788/multiuserclaw/node-inspect-debugger.svg)](https://agentmods.dev/skills/johnson7788/multiuserclaw/node-inspect-debugger)
Your own site
<a href="https://agentmods.dev/skills/johnson7788/multiuserclaw/node-inspect-debugger"><img src="https://agentmods.dev/badge/skills/johnson7788/multiuserclaw/node-inspect-debugger.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,962 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 98% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.02962
Opus 5 $0.00010 $0.01481
Sonnet 5 $0.00004 $0.00592
Haiku 4.5 $0.00002 $0.00296

Measured 3d ago against content hash f2f72c0c9e67, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

node-inspect-debugger scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s http://127.0.0.1:9229/json/list | jq -r '.[0].webSocketDebuggerUrl'
Origin

This is a copy

98% identical to node-inspect-debugger — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

hermes-agent/skills/software-development/node-inspect-debugger/SKILL.md · 320 lines

How it starts

The opening of the file, as written. The whole thing — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Node.js Inspect Debugger

Overview

When console.log isn't enough, drive Node's built-in V8 inspector programmatically from the terminal. You get real breakpoints, step in/over/out, call-stack walking, local/closure scope dumps, and arbitrary expression evaluation in the paused frame.

Two tools, pick one:

  • node inspect — built-in, zero install, CLI REPL. Best for quick poking.
  • ndb / CDP via chrome-remote-interface — scriptable from Node/Python; best when you want to automate many breakpoints, collect state across runs, or debug non-interactively from an agent loop.

Prefer node inspect first. It's always available and the REPL is fast.

When to Use

  • A Node test fails and you need to see intermediate state
  • ui-tui crashes or behaves wrong and you want to inspect React/Ink state pre-render
  • tui_gateway child processes (_SlashWorker, PTY bridge workers) misbehave
  • You need to inspect a value in a closure that console.log can't reach without patching
  • Perf: attach to a running process to capture a CPU profile or heap snapshot

Don't use for: things console.log solves in under a minute. Breakpoint-driven debugging is heavier; use it when the payoff is real.

Quick Reference: node inspect REPL

Launch paused on first line:

node inspect path/to/script.js
# or with tsx
node --inspect-brk $(which tsx) path/to/script.ts

The debug> prompt accepts:

Command Action
c or cont continue
n or next step over
s or step step into
o or out step out
pause pause running code
sb('file.js', 42) set breakpoint at file.js line 42
sb(42) set breakpoint at line 42 of current file
sb('functionName') break when function is called
cb('file.js', 42) clear breakpoint
breakpoints list all breakpoints
bt backtrace (call stack)
list(5) show 5 lines of source around current position
watch('expr') evaluate expr on every pause
watchers show watched expressions
repl drop into REPL in current scope (Ctrl+C to exit REPL)
exec expr evaluate expression once
restart restart script
kill kill the script
.exit quit debugger

Read the full file on GitHub · 320 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 320 lines · 19 tokens per session scan A f2f72c0c9e67

Subscribe to this mod's changes

node-inspect-debugger is a skill published in the GitHub repository johnson7788/MultiUserClaw (317 stars, last pushed 24d ago), licensed MIT. It adds 19 tokens to every session and 2,962 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 98% identical to node-inspect-debugger, differing in 6 lines, and is treated as a copy.

Related

Other skills, from other repositories

dotnet-reverse

A guide for analyzing compiled .NET and C# programs, including managed Windows executables and libraries. Reverse engineering means studying compiled software to understand how it works, and decompiling turns it back into readable approximate source code.

zhaoxuya520/reverse-skill · 144 tokens

check-bin-obj-clash

Detects MSBuild projects with conflicting OutputPath or IntermediateOutputPath. USE FOR: builds failing with 'Cannot create a file when that file already exists', 'The process cannot access the file because it is being used by another process', intermittent build failures that succeed on retry, or missing/overwritten…

dotnet/skills · 160 tokens

dart-run-static-analysis

Execute dart analyze to identify warnings and errors, and use dart fix --apply to automatically resolve mechanical lint issues. Use during development to ensure code quality and before committing changes.

flutter/agent-plugins · 43 tokens

hotpath_init

Configure hotpath profiling in a Rust project. Adds the hotpath dependency with feature-gated setup, instruments main with hotpath::main, functions with measure/measureall, and wraps channels, mutexes, rwlocks, streams, futures, reqwest clients, axum routers and byte-level I/O with hotpath macros. Use when the user…

pawurb/hotpath-rs · 88 tokens

agents-sdk-dotnet-debugging

Use when troubleshooting an agent built with the Microsoft Agents SDK (Microsoft.Agents.Hosting.AspNetCore and related packages) in C# / .NET. Trigger on any of these symptoms: build or C# compile errors, crashes on startup, 401 or auth errors on incoming requests, the bot not responding to messages, appsettings.json…

microsoft/Agents · 136 tokens

golang-error-handling

Idiomatic Golang error handling — creation, wrapping with %w, errors.Is/As, errors.Join, custom error types, sentinel errors, panic/recover, the single handling rule, structured logging with slog, HTTP request logging middleware, and samber/oops for production errors. Built to make logs usable at scale with log…

samber/cc-skills-golang · 144 tokens