karellen-jdb-mcp vs DebugBundle
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). DebugBundle is an MCP server published by debugbundle.com. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). As of our marketplace pass on 2026-10-27. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  karellen-jdb-mcp |  DebugBundle |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.0.4 Forks (GitHub): 4 Stars (GitHub): 4 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.17.0 Downloads/month (npm): 2 049 Downloads/week (npm): 469 Forks (GitHub): 0 Stars (GitHub): 7 Not marked · First seen |
| npm registry (MCP servers) | Not listed | Listed Version: 1.17.0 Downloads/month (npm): 2 049 Downloads/week (npm): 469 Forks (GitHub): 0 Stars (GitHub): 7 Not marked · First seen |
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.
The facts side by side
| Fact | karellen-jdb-mcp | DebugBundle |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 4 (worse) | 7 (better) |
| Forks (GitHub) (differs) | 4 (better) | 0 (worse) |
| Last release (differs) | Not published | 2026-10-19 |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (@debugbundle/mcp) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 2, secrets among them: 1 |
| Hooks it runs (differs) | 3 | Not published |
| Parts of the bundle (differs) | 6 | Not a bundle |
| Licence | Apache-2.0 | Apache-2.0 |
| Repository (differs) | github.com/karellen/karellen-jdb-mcp | github.com/debugbundle/debugbundle |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
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
DebugBundle
DebugBundle MCP: runtime error reporting, incident response, health checks, and product analytics.
How to run each
karellen-jdb-mcp As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install karellen-jdb-mcp@claude-communityDebugBundle As a local MCP server: npm package
claude mcp add --env "DEBUGBUNDLE_MEMBER_TOKEN=<YOUR_DEBUGBUNDLE_MEMBER_TOKEN>" --transport stdio debugbundle -- npx -y @debugbundle/mcpRequires: DEBUGBUNDLE_MEMBER_TOKEN (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of karellen-jdb-mcp publish no settings it asks for, so we do not compare settings.
What it can do: karellen-jdb-mcp · What it can do: DebugBundle · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.