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rea

82 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By anton-abyzov/vskill (GitHub) · coding · 47 stars · scanned at commit 5b88d6c

Find out exactly how a feature is implemented in a shipped tool or app you don't have the source for (desktop apps, Electron apps like Claude desktop, native CLIs like Codex, websites, APKs, .NET assemblies) using REA - Reverse Engineer Anything (github.com/morluto/rea). Sets REA up when it is missing (CLI, MCP registration, Hopper or Ghidra), routes the target to the right REA tool, keeps evidence out of the context window, and turns findings into a clean-room spec before any rebuild. Use when…

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'rea' ] || [ -L ~/.agents/skills/'rea' ]; then echo 'A skill folder named rea already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/anton-abyzov/vskill' "$d" && git -C "$d" checkout --quiet '5b88d6c775780e8f31c43cbbbb91b6fcf6bbe8dd' -- 'skills/rea' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/rea' ~/.agents/skills/'rea' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'rea' ~/.claude/skills/'rea' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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