Ctf Skills

Ctf Skills is an open-source security skill for Claude Code, Codex, Gemini CLI, and opencode, published by ljagiello. Its author describes it as: “Agent skills for solving CTF challenges - web exploitation, binary pwn, crypto, reverse engineering, forensics, OSINT, and more”. The project has 2.9k stars on GitHub and is available under the MIT license. Add it to your setup with `git clone https://github.com/ljagiello/ctf-skills ~/.claude/skills/ctf-skills`.

Installation

Add Ctf Skills to your agent with:

git clone https://github.com/ljagiello/ctf-skills ~/.claude/skills/ctf-skills

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

When to use it

Reach for Ctf Skills when you want security help from Claude Code without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

• Clear MIT license — safe to read and adapt
• Established project with 2,881 GitHub stars
• Declares compatibility with Claude Code, Codex, Gemini CLI, opencode
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does Ctf Skills do?

Agent skills for solving CTF challenges - web exploitation, binary pwn, crypto, reverse engineering, forensics, OSINT, and more

How do I install Ctf Skills?

Run git clone https://github.com/ljagiello/ctf-skills ~/.claude/skills/ctf-skills in your agent, then reload your skills. Review the source at https://github.com/ljagiello/ctf-skills before installing.

Is Ctf Skills free to use?

Yes. Ctf Skills is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.

Which agents does Ctf Skills work with?

Ctf Skills declares compatibility with Claude Code, Codex, Gemini CLI, and opencode. Agent Skills use a portable SKILL.md format, so other compatible clients can usually load it too.