CTF Writeup Generator

by ljagiello

CTF Writeup Generator is a Writing skill for Claude Code, published by ljagiello in ctf-skills.

3K stars353 forkson ljagiello/ctf-skillsAdded 2026/08/17+1% in starsRepository updated 2026/07/31

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agent-skillsclaude-codeclaude-code-skillscodexcodex-clictfctf-challengesctf-toolsgeminigemini-cliopencodesecurity

Install in seconds

Install CTF Writeup Generator

Copy CTF Writeup Generator into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/ljagiello/ctf-skills/tree/main/ctf-writeup ~/.claude/skills/ctf-writeup

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

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

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: ctf-writeup/SKILL.md in ljagiello/ctf-skills
Installs to: ~/.claude/skills/ctf-writeup
Collection: One of 11 skills cataloged from this repository
Category: Writing — 1012 skills

What CTF Writeup Generator does

CTF Writeup Generator creates standardized submission-style writeups for solved CTF challenges, documenting solution steps, tools used, and lessons learned in a structured format. Use after solving a CTF challenge to produce a concise, reproducible writeup for teammate or organizer review.

CTF Writeup Generator is cataloged under Writing on DirSkills. CTF Writeup Generator comes from a repository tagged agent-skills, claude-code, claude-code-skills, codex and codex-cli.

Documentation

README

Excerpt

CTF Write-up Generator

Generate a standardized submission-style CTF writeup for a solved challenge.

Default behavior:

During an active competition, optimize for speed, clarity, and reproducibility
Keep writeups short enough that a teammate or organizer can validate the solve quickly
Always produce a submission-style writeup
Prefer one complete solve script from challenge data to final flag

Workflow

Step 1: Gather Information

Collect the following from the current session, challenge files, and user input:

Challenge metadata — name, CTF event, category, difficulty, points, flag format
Solution artifacts — exploit scripts, payloads, screenshots, command output
Timeline — key steps taken, dead ends, pivots

This is the opening of the README. Read the full README on GitHub.

Frequently asked about CTF Writeup Generator

What else does ljagiello publish alongside CTF Writeup Generator?
CTF Writeup Generator is one of 11 skills that DirSkills catalogs from ljagiello/ctf-skills, the repository it ships in. Its siblings there include CTF AI/ML, CTF Binary Exploitation and CTF Challenge Solver. Each one is a separate skill with its own page in this directory, installs the same way CTF Writeup Generator does, and is maintained by ljagiello in that same repository. The rest of the collection is listed on the ljagiello/ctf-skills page.
How does CTF Writeup Generator compare to other Writing skills?
CTF Writeup Generator ranks #219 by stars among the 1012 Writing skills in this catalog. The most-starred ones next to it are Article Writing, Social Media Content Calendar and Knowledge Comic Creator. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of CTF Writeup Generator against them. Open each page to compare what they document and how they install.