karellen-rr-mcp vs New Relic
karellen-rr-mcp is a plugin bundle for AI coding tools published by karellen. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). New Relic is a plugin bundle for AI coding tools published by newrelic. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-official, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-17. 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-rr-mcp |  New Relic |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.2.4 Forks (GitHub): 0 Stars (GitHub): 3 Not marked · First seen |
Listed Version: 1.0.0 Forks (GitHub): 1 Stars (GitHub): 2 Not marked · First seen |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 1.0.0 Forks (GitHub): 1 Stars (GitHub): 2 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-rr-mcp | New Relic |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 3 (better) | 2 (worse) |
| Forks (GitHub) (differs) | 0 (worse) | 1 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (mcp.newrelic.com/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 3 | Not published |
| Parts of the bundle (differs) | 9 | 4 |
| Licence | Apache-2.0 | Apache-2.0 |
| Repository (differs) | github.com/karellen/karellen-rr-mcp | github.com/newrelic/claude-code-plugin |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 6 h ago, requires a key |
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-rr-mcp
Claude Code plugin for rr reverse debugging via MCP. Automatically configures the karellen-rr-mcp MCP server and includes a crash detection hook that suggests rr when a command exits with a signal (SIGSEGV, SIGABRT, etc.) or sanitizer output is detected, a debugging skill with the full record-replay-analyze workflow, and an rr-investigator agent for autonomous crash investigation through reverse execution. Requires Linux x86-64 with rr, gdb, and pip install karellen-rr-mcp.
New Relic
New Relic observability intelligence for Claude Code. Investigate APM performance, analyze cloud costs, debug Kubernetes, write NRQL queries, and respond to alerts — all from your terminal using New Relic telemetry data.
How to run each
karellen-rr-mcp As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install karellen-rr-mcp@claude-communityNew Relic As a Claude Code plugin
/plugin install newrelic@claude-plugins-officialCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only New Relic has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: karellen-rr-mcp · What it can do: New Relic · 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 public marketplace file https://github.com/anthropics/claude-plugins-official/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.