karellen

27 mods across 3 repositories, 8 stars between them.

karellen-jdb-mcp

01

karellen/karellen-jdb-mcp

Plugin Claude Code

JDB (Java Debugger) for Claude Code via MCP - attach to running JVMs and debug with breakpoints, expression evaluation, thread inspection, and class introspection.

3 5mo ago A tokens not measured original Apache-2.0

karellen-jdb-mcp

02

karellen/karellen-jdb-mcp

MCP server Claude CodeCodexCursor +2

MCP server "karellen-jdb-mcp" as configured in karellen/karellen-jdb-mcp. Launched with karellen-jdb-mcp.

3 5mo ago A tokens not measured original Apache-2.0

jdb-investigator

03

karellen/karellen-jdb-mcp

Agent

Use this agent when a Java application throws an unhandled exception, hangs (possible deadlock), produces wrong output, or when you have spent more than two rounds of reading source code trying to understand a Java bug without finding the root cause. This agent attaches JDB to the target JVM and uses breakpoints…

3 5mo ago A 91 tokens original Apache-2.0

SessionStart

04

karellen/karellen-jdb-mcp

Hook

Runs when a session starts on startup, executing check-prerequisites.sh. From karellen/karellen-jdb-mcp.

3 5mo ago A tokens not measured original Apache-2.0

PostToolUse

05

karellen/karellen-jdb-mcp

Hook

Runs after a tool call finishes for Bash tool calls, executing detect-java-exception.sh. From karellen/karellen-jdb-mcp.

3 5mo ago A tokens not measured copy · 59% Apache-2.0

PostToolUseFailure

06

karellen/karellen-jdb-mcp

Hook

Runs when a tool call fails for Bash tool calls, executing detect-java-exception.sh. From karellen/karellen-jdb-mcp.

3 5mo ago A tokens not measured copy · 63% Apache-2.0

jdb-debug

07

karellen/karellen-jdb-mcp

Skill Claude CodeCodex

Debug a Java application using JDB. Attaches to a running JVM, sets breakpoints, inspects state, and navigates execution to find the root cause of bugs.

3 5mo ago A 35 tokens original Apache-2.0

karellen-rr-mcp

08

karellen/karellen-rr-mcp

Plugin Claude Code

rr reverse debugging for Claude Code via MCP - record, replay, and debug program executions with full forward and reverse control.

3 4mo ago A tokens not measured original Apache-2.0

karellen-rr-mcp

09

karellen/karellen-rr-mcp

MCP server Claude CodeCodexCursor +2

MCP server "karellen-rr-mcp" as configured in karellen/karellen-rr-mcp. Launched with karellen-rr-mcp.

3 4mo ago A tokens not measured original Apache-2.0

rr-investigator

11

karellen/karellen-rr-mcp

Agent

Use this agent when a command or test exits with a signal (SIGSEGV, SIGABRT, SIGBUS, SIGFPE), produces a segfault or core dump, or when you have spent more than two rounds of reading source code trying to understand a crash, memory corruption, use-after-free, double-free, data race, or wrong-value bug without finding…

3 4mo ago A 126 tokens original Apache-2.0

SessionStart

12

karellen/karellen-rr-mcp

Hook

Runs when a session starts on startup, executing check-prerequisites.sh. From karellen/karellen-rr-mcp.

3 4mo ago A tokens not measured copy · 100% Apache-2.0

PostToolUse

13

karellen/karellen-rr-mcp

Hook

Runs after a tool call finishes for Bash tool calls, executing detect-crash.sh. From karellen/karellen-rr-mcp.

3 4mo ago A tokens not measured copy · 58% Apache-2.0

PostToolUseFailure

14

karellen/karellen-rr-mcp

Hook

Runs when a tool call fails for Bash tool calls, executing detect-crash.sh. From karellen/karellen-rr-mcp.

3 4mo ago A tokens not measured copy · 58% Apache-2.0

rr-debug-logic

15

karellen/karellen-rr-mcp

Skill Claude CodeCodex

Debug a logic bug (wrong output, wrong value, incorrect behavior) using rr. Sets breakpoints at the point where the bug is observable, then reverse-executes to find where the computation went wrong.

3 4mo ago A 42 tokens original Apache-2.0

rr-debug-race

16

karellen/karellen-rr-mcp

Skill Claude CodeCodex

Debug a data race or concurrency bug using rr. Records the program, then uses deterministic replay with thread inspection and watchpoints to find the exact interleaving that caused the race.

3 4mo ago A 36 tokens original Apache-2.0

rr-debug-test

17

karellen/karellen-rr-mcp

Skill Claude CodeCodex

Debug a failing test using rr. Records the test suite, identifies the failing subprocess, and reverse-debugs just that process to find the root cause.

3 4mo ago A 30 tokens original Apache-2.0

rr-debug

18

karellen/karellen-rr-mcp

Skill Claude CodeCodex

Debug a crash or test failure using rr reverse debugging. Records a command, replays it, and works backwards from the failure to find the root cause.

3 4mo ago A 31 tokens original Apache-2.0

karellen-lsp-mcp

19

karellen/karellen-lsp-mcp

Plugin Claude Code

LSP-backed code intelligence for Claude Code via MCP and native LSP - navigate definitions, references, call hierarchies, type hierarchies, and diagnostics across codebases.

2 4mo ago A tokens not measured original Apache-2.0

karellen-lsp-mcp

20

karellen/karellen-lsp-mcp

MCP server Claude CodeCodexCursor +2

MCP server "karellen-lsp-mcp" as configured in karellen/karellen-lsp-mcp. Launched with karellen-lsp-mcp.

2 4mo ago A tokens not measured original Apache-2.0

karellen/karellen-lsp-mcp

Instructions file

Instructions for karellen/karellen-lsp-mcp, covering project: karellen-lsp-mcp, build & test, project layout, key design details and change checklist.

2 4mo ago A 1,637 tokens original Apache-2.0

lsp-investigator

22

karellen/karellen-lsp-mcp

Agent

Use this agent when you need deep code understanding across a large codebase, when tracing call chains or type hierarchies would require reading many files, when you need to find all references to a symbol, or when compiler diagnostics would help understand build errors. This agent registers the project with the…

2 4mo ago A 125 tokens original Apache-2.0

SessionStart

23

karellen/karellen-lsp-mcp

Hook

Runs when a session starts on startup, executing check-prerequisites.sh. From karellen/karellen-lsp-mcp.

2 4mo ago A tokens not measured copy · 100% Apache-2.0

PostToolUse

24

karellen/karellen-lsp-mcp

Hook

Runs after a tool call finishes for Bash tool calls, executing detect-lsp-opportunity.sh. From karellen/karellen-lsp-mcp.

2 4mo ago A tokens not measured copy · 63% Apache-2.0