Can this skill help with ASAN faults?

Yes, it includes specific workflows for navigating AddressSanitizer (ASAN) crashes to find the exact application instruction causing the memory corruption before the runtime error occurs.

What is rr debugging?

rr is a tool that records program execution so you can replay it deterministically, allowing you to step backward and forward through code to find the exact cause of a bug.

Does it support reverse execution?

Yes, the skill provides specific commands like reverse-next, reverse-step, and reverse-continue to backtrack from a crash point in time.

What are the benefits of deterministic debugging over standard GDB?

Standard GDB only moves forward; this skill enables 'time-travel' debugging, ensuring that every replay is identical and allowing you to see how variables reached their state before a crash.

Deterministic Crash Debugger

Name: Deterministic Crash Debugger
Author: gadievron

bygadievron

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878

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Security & Testing

Automates deterministic debugging and reverse execution to identify root causes of program crashes and memory faults.

This skill integrates the rr record-replay tool into Claude Code, enabling developers and security researchers to perform non-flaky, 'time-travel' debugging of complex crashes. By recording program execution and replaying it deterministically, it allows the agent to step backward from a crash point to see exactly how memory became corrupted or where logic failed. It includes specialized workflows for standard crashes and AddressSanitizer (ASAN) faults, making it an essential tool for high-stakes software debugging and security research.

Key Features

01878 GitHub stars

02Source-level and assembly-level visualization of the execution flow

03Deterministic record and replay of program execution environments

04Full reverse execution commands including reverse-next, reverse-step, and reverse-continue

05Automated crash trace extraction for both standard and ASAN-detected faults

06Deep inspection of variables, pointers, and memory at any point in history

Use Cases

01Precise security research and exploit development through instruction-level execution tracing

02Root cause analysis of memory safety vulnerabilities flagged by AddressSanitizer

03Debugging 'Heisenbugs' or intermittent crashes that are difficult to reproduce consistently

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add gadievron/raptor crash-analysis

For use in Claude.ai and ChatGPT

Download Skill