Rev Unicorn Debug

If you're reverse engineering and need to emulate a specific function without running the whole binary, this gives Claude the framework to use UnicornEngine effectively. It loads code as raw bytes, hooks external dependencies like libc or JNI calls with Python stubs, and iteratively fixes crashes by mapping memory or simulating missing functions. The approach is practical: prefer block tracing over instruction tracing, catch unmapped memory errors with callbacks, and build fake function tables when needed. It's designed for the common case where you want to decrypt something or trace an algorithm without dealing with the full execution environment. The iterative debugging loop is honestly how you'd do this manually anyway.

skills.sh installs: 1.9K
GitHub stars: 2.4K
last updated: Aug 21, 2026

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Install

$ npx -y skills add p4nda0s/reverse-skills --skill rev-unicorn-debug --agent claude-code

Installs into .claude/skills of the current project.

Files

rev-unicorn-debug - Unicorn Emulation Debugger

Debug and emulate specific code fragments or functions using the Unicorn engine. Analyze context dependencies (JNI, syscalls, library functions) and simulate them through hook mechanisms to complete the user's debugging goal.