SKILL.md

ctf-misc

Provides miscellaneous CTF challenge techniques for problems that do not cleanly fit the main categories. Use for encoding puzzles, pyjails, bash jails, RF/SDR, DNS oddities, unicode tricks, esoteric languages, QR or audio puzzles, constraint solving, game theory, unusual sandbox escapes, and hybrid logic puzzles. Prefer a more specific skill first when the challenge is mainly web, pwn, reverse, forensics, malware, OSINT, or crypto. Treat this as the fallback skill for genuine cross-category or edge-case challenges, not the default starting point.

install ctf-misc

# install the ctf-skills pack with the skills CLI

npx skills add ljagiello/ctf-skills

# or add only this skill to Claude Code: copy the folder

ctf-misc/

# into

~/.claude/skills/ctf-misc/ (all projects)

.claude/skills/ctf-misc/ (one project)

ctf-misc/SKILL.md

MITFull file

1# CTF Miscellaneous
2 
3Quick reference for miscellaneous CTF challenges. Each technique has a one-liner here; see supporting files for full details.
4 
5## Prerequisites
6 
7**Python packages (all platforms):**
8```bash
9pip install "pwntools==4.15.0" "segno==1.6.6" z3-solver Pillow numpy requests dnslib
10```
11 
12**Linux (apt):**
13```bash
14apt install libzbar0 qrencode ffmpeg
15```
16 
17**macOS (Homebrew):**
18```bash
19brew install ffmpeg qrencode
20```
21 
22**Manual install:**
23- SageMath — Linux: `apt install sagemath`, macOS: `brew install --cask sage`
24 
25## Additional Resources
26 
27- [pyjails.md](pyjails.md) - Python jail/sandbox escape techniques, quine context detection, restricted character repunit decomposition, func_globals module chain traversal, restricted charset number generation, class attribute persistence, f-string config injection via stored eval
28- [bashjails.md](bashjails.md) - Bash jail/restricted shell escape techniques, HISTFILE file read trick, bash -v verbose mode, ctypes.sh direct C library calls
29- [encodings.md](encodings.md) - Encodings, QR codes, esolangs, UTF-16 tricks, BCD encoding, multi-layer auto-decoding, indexed directory QR reassembly, multi-stage URL encoding chains
30- [encodings-advanced.md](encodings-advanced.md) - Verilog/HDL, Gray code cyclic encoding, RTF custom tag extraction, SMS PDU decoding, multi-encoding sequential solvers, UTF-9, pixel binary encoding, hexadecimal Sudoku + QR assembly, TOPKEK, MaxiCode
31…

Excerpt shown under the repository's MIT license.

How to install ctf-misc

ctf-misc/SKILL.md

More skills in ctf-skills

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