claude

karellen-rr-mcp

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

3 on GitHubby Karellen, Inc.v0.2.4Apache-2.0updated 1 month ago

Not in a marketplace yet, so it loads for one session with --plugin-dir.

Plugin karellen-rr-mcp in karellen/karellen-rr-mcp. Commands read from the repo's manifest — 1 month ago.

This plugin runs code on your machine — its hooks fire automatically on events like tool use and it starts local MCP servers. The exact commands are listed below; read them before installing.

What it installs

Skills (4)

  • rr-debug-logic

    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.

  • rr-debug-race

    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.

  • rr-debug-test

    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.

  • rr-debug

    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.

Subagents (1)

  • rr-investigator

    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 b

MCP servers (1)

  • karellen-rr-mcp

    runs: karellen-rr-mcp

Hooks (3)

  • SessionStart

    ${CLAUDE_PLUGIN_ROOT}/scripts/check-prerequisites.sh

  • PostToolUse

    ${CLAUDE_PLUGIN_ROOT}/scripts/detect-crash.sh

  • PostToolUseFailure

    ${CLAUDE_PLUGIN_ROOT}/scripts/detect-crash.sh

View source on GitHub karellen.co

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