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Claude Code Debugging plugins and skills

Flowy lists 31 plugins in the Debugging category for Claude Code. diagnosing a failure that already happened; root cause, traces, repro Every listing shows what is inside before you install, who built it, and whether it is Auto-invoked, meaning a FLOW.md router fires the right skill as you prompt instead of leaving them dormant.

chrome-devtools-mcp
Auto-invoked

chrome-devtools-mcp

Gives Claude Code skills for debugging and automating Chrome through DevTools, covering browser inspection, performance and LCP analysis, accessibility audits, cookie debugging, and shell scripting of browser tasks.

7 skills
@chromedevtools@chromedevtoolsInstall Plugin
arthas

arthas

Skills for diagnosing Java applications with Arthas: tracing high CPU usage to threads and code paths, following request traceIds, and debugging Spring ApplicationContext, Bean and configuration injection problems.

3 skills
@alibaba@alibabaInstall Plugin
claude-devtools

claude-devtools

Inspects Claude Code session logs in a visual UI, showing tool calls, token usage, subagent traces and the context window. Useful for developers who want to see what happened inside a session.

@matt1398@matt1398Install Plugin
reagent

reagent

ReAgent is an open-source AI reverse-engineering agent that uses Ghidra and LLMs, including Claude, Codex, and OpenAI-compatible models, to reconstruct and validate C/C++ functions from compiled binaries.

@dryxio@dryxioInstall Plugin
mcp-windbg

mcp-windbg

A Model Context Protocol server that bridges AI models with WinDbg for crash dump analysis, user-mode remote debugging, and kernel debugging.

4 skills
@svnscha@svnschaInstall Plugin
dev3000

dev3000

d3k is a local web debugging runtime for coding agents. It starts your dev server and opens a monitored browser, then combines server logs, browser errors, network activity and interactions into one timeline.

1 skill
@vercel-labs-2@vercel-labs-2Install Plugin
gearboy

gearboy

Gearboy is an accurate, cross-platform Game Boy / Game Boy Color / Super Game Boy emulator written in C++ that runs on Windows, macOS, Linux, BSD and RetroArch, with an embedded MCP server for AI debugging and development.

2 skills
@drhelius@drheliusInstall Plugin
debugmcp

debugmcp

Let AI agents debug your code inside VS Code - set breakpoints, step through execution, inspect variables, and evaluate expressions.

1 skill
@microsoft@microsoftInstall Plugin
bagel

bagel

Query robotics, drone, and IoT data in plain English through an MCP server, with an intelligent edge data reduction pipeline that keeps only the data that matters.

4 skills
@extelligence-ai@extelligence-aiInstall Plugin
gearsystem

gearsystem

Gearsystem is a very accurate, cross-platform Sega Master System / Game Gear / SG-1000 emulator written in C++ that runs on Windows, macOS, Linux, BSD and RetroArch, with an embedded MCP server for AI debugging and development.

2 skills
@drhelius@drheliusInstall Plugin
mcp-flutter

mcp-flutter

Lets an AI assistant inspect and control a running Flutter app, reading its widget tree and driving it at runtime. Works as a Dart MCP server paired with a Flutter package, for debugging and validating apps.

22 skills
@arenukvern@arenukvernInstall Plugin
ccproxy

ccproxy

Lets Claude Code users run ccproxy as a local OpenAI- and Anthropic-compatible API server with model routing and OAuth, and inspect or transform LLM API traffic through a mitmproxy-based inspector with optional WireGuard capture.

2 skills
@starbaser@starbaserInstall Plugin
openlogs

openlogs

Gives coding agents direct access to recent local server logs in repos that use openlogs or the ol CLI. Lets the agent inspect startup errors, stack traces and request traces to debug failures with real runtime context.

1 skill
@charlietlamb@charlietlambInstall Plugin
debugging-code

debugging-code

Interactive step debugging for source code: set breakpoints, step through execution line by line, inspect live variables, and evaluate expressions in a running program. Works across Python, TypeScript, JavaScript, Node, Rust, and C++ via the Debug Adapter Protocol.

1 skill
@almogbaku@almogbakuInstall Plugin
tare

tare

Ask Claude Code where your usage went. You hit a usage limit and don't know why. Your quota drains faster than it used to. You suspect something is eating tokens in the background.

1 skill
@kelviq@kelviqInstall Plugin
geargrafx

geargrafx

Geargrafx is a very accurate, cross-platform TurboGrafx-16 / PC Engine / SuperGrafx / CD-ROMยฒ / LD-ROMยฒ emulator written in C++ that runs on Windows, macOS, Linux, BSD and RetroArch, with an embedded MCP server for AI debugging and development.

2 skills
@drhelius@drheliusInstall Plugin
agent-react-devtools

agent-react-devtools

A React DevTools command line tool for AI agents. It lets an agent inspect component trees, read props and state, and profile render performance in React and React Native apps.

1 skill
@callstackincubator@callstackincubatorInstall Plugin
bn

bn

An agent-friendly CLI for the Binary Ninja database already open in your GUI. Read decompilation, assembly, references, and types; run unrestricted in-process Python; apply mutations with preview and live verification.

1 skill
@banteg@bantegInstall Plugin
embedded-debugger

embedded-debugger

Embedded Debugger MCP is a Rust server for embedded debugging through either probe-rs (native) or OpenOCD (via the GDB Remote Serial Protocol).

1 skill
@adancurusul@adancurusulInstall Plugin
crowdsentinels-ai-mcp

crowdsentinels-ai-mcp

AI-powered threat hunting and incident response MCP server for Elasticsearch/OpenSearch.

2 skills
@thomasxm@thomasxmInstall Plugin
devsql

devsql

Code Mode for observing AI coding history, shell history, macOS Unified Logs, Git repositories, and source code. Code Mode is the primary agent interface; the direct SQL CLI remains available for humans and scripts.

1 skill
@douglance@douglanceInstall Plugin
fast-resume

fast-resume

Search and resume conversations across Claude Code, Codex, Pi, and more, all from one terminal UI. Coding agents can resume previous sessions, but searching those sessions is often limited or title-only.

1 skill
@angristan@angristanInstall Plugin
mcp-debugger

mcp-debugger

A headless, agentic debugger over MCP, let your AI agents debug running programs in ten languages.

1 skill
@debugmcp@debugmcpInstall Plugin
debug-that

debug-that

Lets AI agents debug running programs through the dbg CLI, with breakpoints, stack and variable inspection, and short @ref handles. Covers Node.js, Bun, Python, Java and native code.

1 skill
@theodo-group@theodo-groupInstall Plugin
agenttrace

agenttrace

Local-first Rust TUI/CLI for auditing AI coding-agent sessions: cost, tokens, latency, failures, and health๏ฝœๆœฌๅœฐ่ฟ่กŒ็š„ Rust TUI/CLI๏ผŒๅฎก่ฎก AI ็ผ–็จ‹ Agent ไผš่ฏ็š„ๆˆๆœฌใ€Tokenใ€ๅปถ่ฟŸใ€ๅคฑ่ดฅไธŽๅฅๅบทๅบฆ.

1 skill
@luoyuctl@luoyuctlInstall Plugin
alibabacloud-ecs-troubleshoot-skills

alibabacloud-ecs-troubโ€ฆ

A collection of Agent Skills for structured, reproducible troubleshooting and security assessment of Alibaba Cloud ECS instances.

4 skills
@aliyun@aliyunInstall Plugin
bug-hunt

bug-hunt

Adversarial bug finding skill for Claude Code. Uses 3 isolated AI agents to find and verify real bugs with high fidelity.

1 skill
@danpeg@danpegInstall Plugin
gearcoleco

gearcoleco

Gearcoleco is a very accurate, cross-platform ColecoVision and Coleco ADAM emulator written in C++ that runs on Windows, macOS, Linux, BSD and RetroArch, with an embedded MCP server for AI debugging and development.

2 skills
@drhelius@drheliusInstall Plugin
langfuse

langfuse

Usage: 12,518 PyPI downloads last month (pypistats, 2026-08-19). v0.10.1. Local MCP server and skill for Langfuse. Debug traces, sessions, and exceptions from Claude Code, Codex, Cursor, or any MCP client.

1 skill
@avivsinai@avivsinaiInstall Plugin

FAQ

What are the best Claude Code Debugging plugins?
Flowy lists 31 plugins for Debugging, ranked by fit and signal rather than raw install count. Open any listing to read every skill in full before you install it.
Do these Debugging skills run automatically?
The Auto-invoked ones do. They ship a FLOW.md router and a hook, so Claude Code loads the matching skill as you prompt. Indexed listings install normally, and their skills fire only when Claude picks them from their descriptions.
How does Flowy decide a plugin is a Debugging plugin?
The tag is derived from the plugin's own content, its skill names, descriptions, README and file types, not from a tag someone typed. A plugin appears here only when its real content matches.
Are these Debugging plugins free?
Yes. Flowy is free and open source with nothing gated. You can read every skill before installing, and each listing links to its upstream repository and its creator.

Browse every plugin