Directory / Claude community plugins (Anthropic) / karellen-jdb-mcp
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 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 Compatibility**: Supports JDK 8+ with feature detection (virtual threads on JDK 20+, thread-scoped breakpoints on JDK 13+) ### Prerequisites - Python 3.10+ - A JDK installation (for the `jdb` executable) ### Installation pip install karellen-jdb-mcpDescription from the marketplace entry / plugin manifest.
Information source
Copied from the Claude community plugins (Anthropic) catalog (anthropics/claude-plugins-community), maintained by Anthropic (community submissions).
- Marketplace entry:
.claude-plugin/marketplace.json
Links are pinned to commit 06ec7b6 (2026-10-13), the version we synced. Not reviewed by us.
Install
Add the marketplace (once, in Claude Code)
/plugin marketplace add anthropics/claude-plugins-communityIn a Claude Code session
/plugin install karellen-jdb-mcp@claude-communityFrom your shell
claude plugin install karellen-jdb-mcp@claude-communityCommands follow each host's documentation (Claude Code, Claude Cowork docs). gh skill needs GitHub CLI 2.90 or later and is in public preview.
Listed from Anthropic (community submissions)'s catalog, not reviewed by us. Read the source before installing.
- Catalog
- Claude community plugins (Anthropic) (
claude-community) - Information source
- marketplace.json in anthropics/claude-plugins-community
- Author
- Not stated in the source
- Source code
- karellen/karellen-jdb-mcp
- License
- Apache-2.0 (repository license)
- Repository stars
- 4 for karellen/karellen-jdb-mcp
- Added to catalog
- 2026-03-24
- Last change
- 2026-10-11 (last push to the repo)
What it contains
Hosted in an external repository, so contents are not counted here. See the source link.
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