karellen-jdb-mcp
JDB (Java Debugger) plugin for Claude Code. Attach to running JVMs via JDWP and debug interactively with breakpoints, watchpoints, exception breakpoints, stepping, expression…
Plugin bundle · by karellen
About
karellen-jdb-mcp is a plugin bundle for AI coding tools published by karellen. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-12.
JDB (Java Debugger) plugin for Claude Code. Attach to running JVMs via JDWP and debug interactively with breakpoints, watchpoints, exception breakpoints, stepping, expression evaluation, thread inspection, stack navigation, and class introspection. ### Features - **Connect & Launch**: Attach to any JVM started with JDWP, or launch one directly with `jdb_launch` - **Multi-session**: Debug multiple JVMs simultaneously on different ports - **Breakpoints & Watchpoints**: Line/method breakpoints, field watchpoints, exception breakpoints with caught/uncaught filtering - **Execution Control**: Step in, step over, step out, continue, suspend/resume threads - **Inspection**: Evaluate expressions, dump objects, view locals, list loaded classes/methods/fields - **Stack Navigation**: Walk the call stack, move up/down frames, pop/re-enter frames - **Concurrency**: Thread listing, lock/monitor inspection for deadlock analysis - **Tracing & Monitoring**: Trace method entries/exits, auto-execute commands on each stop - **JDK
What it asks for
- Installs as a plugin bundle
- Hooks: 3
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Claude Code: claude-plugins-community (Open the source on GitHub) | Listed | 0.0.4 | Forks (GitHub): 4 Stars (GitHub): 3 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What the bundle contains
As published on Claude Code: claude-plugins-community.
MCP servers: 1
karellen-jdb-mcp
Skills: 1
jdb-debug
Agents: 1
jdb-investigator
Hooks: 3
PostToolUsePostToolUseFailureSessionStart
What changed
Nothing has moved on this plugin since we started watching it.
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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
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Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.