MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Recover logic from PyInstaller, cxFreeze, py2exe, Nuitka, and other frozen Python applications, including modified bootloaders, decoy entry scripts, patched frozen standard-library modules, embedded…
No licenceAuto-check passed
Install Python Frozen App Reversing
$ npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install manyuegong33/r0crawl_skills python-frozen-app-reversing --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/manyuegong33/r0crawl_skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/python-frozen-app-reversing .claude/skills/python-frozen-app-reversing && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "python-frozen-app-reversing" agent skill from https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversing into .claude/skills/python-frozen-app-reversing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-frozen-app-reversing", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install manyuegong33/r0crawl_skills python-frozen-app-reversing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/manyuegong33/r0crawl_skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/python-frozen-app-reversing .agents/skills/python-frozen-app-reversing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "python-frozen-app-reversing" agent skill from https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversing into .agents/skills/python-frozen-app-reversing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-frozen-app-reversing", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install manyuegong33/r0crawl_skills python-frozen-app-reversing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/manyuegong33/r0crawl_skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/python-frozen-app-reversing .cursor/skills/python-frozen-app-reversing && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "python-frozen-app-reversing" agent skill from https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversing into .cursor/skills/python-frozen-app-reversing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-frozen-app-reversing", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/manyuegong33/r0crawl_skills.git --path skills/python-frozen-app-reversing--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install manyuegong33/r0crawl_skills python-frozen-app-reversing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/manyuegong33/r0crawl_skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/python-frozen-app-reversing .gemini/skills/python-frozen-app-reversing && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "python-frozen-app-reversing" agent skill from https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversing into .gemini/skills/python-frozen-app-reversing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-frozen-app-reversing", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install manyuegong33/r0crawl_skills python-frozen-app-reversingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/manyuegong33/r0crawl_skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/python-frozen-app-reversing .github/skills/python-frozen-app-reversing && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "python-frozen-app-reversing" agent skill from https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversing into .github/skills/python-frozen-app-reversing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-frozen-app-reversing", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install manyuegong33/r0crawl_skills python-frozen-app-reversing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/manyuegong33/r0crawl_skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/python-frozen-app-reversing .opencode/skills/python-frozen-app-reversing && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "python-frozen-app-reversing" agent skill from https://github.com/manyuegong33/r0crawl_skills/tree/main/skills/python-frozen-app-reversing into .opencode/skills/python-frozen-app-reversing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-frozen-app-reversing", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
python-frozen-app-reversing- GitHub stars
- 312
- Token cost
- ~666 tokens
- SKILL.md length
- 291 words
- Files
- 4 (incl. scripts, references)
- Skills in repo
- 9
- Repo updated
- First seen
- Licence
- None found
At a glance
Recover logic from PyInstaller, cxFreeze, py2exe, Nuitka, and other frozen Python applications, including modified bootloaders, decoy entry scripts, patched frozen standard-library modules, embedded…
- Works in 5 steps: Identify the container using imports,… → List the archive TOC before extraction. → Extract the archive and record every… → …
- Packaged Python executables
- SKILL.md covers Preserve the environment, Inventory every layer, Treat an inert entry script as… and Locate modified frozen modules, plus 2 more sections
- Runs Python scripts from its folder
What it does
Python Frozen App Reversing is an agent skill from manyuegong33/r0crawl_skills. Recover logic from PyInstaller, cxFreeze, py2exe, Nuitka, and other frozen Python applications, including modified bootloaders, decoy entry scripts, patched frozen standard-library modules, embedded marshal code objects, and logic hidden inside pythonXY.dll or libpython. Use for packaged Python executables, MEI overlays, PYZ archives, suspicious .pyc files, or runtime behavior missing from extracted scripts.
Its SKILL.md is about 670 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/modified-runtime.md` and `scripts/scan_frozen_artifacts.py`).
It works with Python. The repository describes itself as: r0crawlskills is a massive reverse-engineering skill arsenal for web, Android, iOS, Frida, native binaries, protocols, malware, firmware, and anti-analysis—built for beginners…
When your agent uses it
- Packaged Python executables
- Suspicious .pyc files
- Runtime behavior missing from extracted scripts
Example prompts
- “/python-frozen-app-reversing”
Requirements
- Python 3
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Identify the container using imports, strings, overlay magic, and process behavior.
- List the archive TOC before extraction.
- Extract the archive and record every script, runtime hook, PYZ entry, native extension, and Python runtime library.
- Disassemble entry scripts with a Python-version-compatible tool.
- Run scripts/scan_frozen_artifacts.py across the entire extraction tree using runtime output and function identifiers as markers.
What it can do on your machine
Read from SKILL.md and the folder at commit b9eb545. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Python Frozen App Reversing loads about 666 tokens when it runs, and up to ~926 if it reads all its reference files. Until then it costs about 110 tokens; SKILL.md has 291 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 291 words (~666 tokens).
“Record hashes, architecture, packer evidence, Python version, and tool versions. Use a dedicated virtual environment for extractors; do not downgrade shared dependencies.”
- name
- python-frozen-app-reversing
Files
SKILL.md and 3 other files (scripts, references) in skills/python-frozen-app-reversing of manyuegong33/r0crawl_skills.
- SKILL.md
- agents/openai.yaml
- references/modified-runtime.md
- scripts/scan_frozen_artifacts.py
Open the folder on GitHubat commit b9eb545
Compare with similar skills
Python Frozen App Reversing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Python Frozen App Reversing this skillmanyuegong33/r0crawl_skills | 312 | — | ~666 | Automated safety check: Pass | None | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| PDF Processinganthropics/skills | 180k | 47 repos | ~2k | Automated safety check: Pass | Proprietary | |
| NotebookLM Research AssistantPleasePrompto/notebooklm-skill | 7.8k | 14 repos | ~2.4k | Automated safety check: Notes | MIT | |
| Manim Video Productionbrowser-use/video-use | 29k | 6 repos | ~3k | Automated safety check: Pass | MIT | |
| PPT Masterhugohe3/ppt-master | 59k | 1 repos | ~2.5k | Automated safety check: Pass | MIT |
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Related
Works with
Questions about Python Frozen App Reversing
What does Python Frozen App Reversing do?
Recover logic from PyInstaller, cxFreeze, py2exe, Nuitka, and other frozen Python applications, including modified bootloaders, decoy entry scripts, patched frozen standard-library modules, embedded…. Python Frozen App Reversing is an agent skill from manyuegong33/r0crawl_skills.dll or libpython.
When should I use Python Frozen App Reversing?
Python Frozen App Reversing fits situations like: packaged Python executables; suspicious .pyc files; runtime behavior missing from extracted scripts.
How do I install Python Frozen App Reversing in Claude Code?
Run `npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a claude-code`. Or copy the skill folder (skills/python-frozen-app-reversing in manyuegong33/r0crawl_skills) into .claude/skills/python-frozen-app-reversing in your project. Claude Code loads it when a task matches its description.
How do I install Python Frozen App Reversing in Codex?
Run `npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a codex`. Or copy the skill folder (skills/python-frozen-app-reversing in manyuegong33/r0crawl_skills) into .agents/skills/python-frozen-app-reversing in your project. Codex loads it when a task matches its description.
Can I use Python Frozen App Reversing in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add manyuegong33/r0crawl_skills --skill python-frozen-app-reversing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/python-frozen-app-reversing, .gemini/skills/python-frozen-app-reversing, .github/skills/python-frozen-app-reversing and .opencode/skills/python-frozen-app-reversing in your project.
What does Python Frozen App Reversing need to run?
Going by SKILL.md and its folder, Python Frozen App Reversing needs Python for the scripts in its folder. Our summary lists: Python 3.
Does Python Frozen App Reversing access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Python Frozen App Reversing safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Python Frozen App Reversing use?
No licence was found for Python Frozen App Reversing or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Python Frozen App Reversing use?
About 666 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 260 tokens, read only when the agent opens those files.
What are the alternatives to Python Frozen App Reversing?
Skills that share tags, products or a category with Python Frozen App Reversing: MCP Server Builder (anthropics/skills, 180k stars), PDF Processing (anthropics/skills, 180k stars), NotebookLM Research Assistant (PleasePrompto/notebooklm-skill, 7.8k stars) and Manim Video Production (browser-use/video-use, 29k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Python Frozen App Reversing?
manyuegong33 (a GitHub user) maintains it in manyuegong33/r0crawl_skills, which has 312 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on September 20, 2026.
Source: manyuegong33/r0crawl_skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.