ctf-writeup

The `ctf-writeup` skill is designed to streamline the process of creating standardized, submission-ready writeups for Capture The Flag (CTF) competitions. After solving a challenge, users can leverage this skill to document their solution in a concise, reproducible format suitable for both team handoff and organizer review. By focusing on clarity and speed, it reduces the overhead associated with manually preparing writeups, ensuring that essential details are captured without unnecessary verbosity.

This skill supports a structured workflow that includes gathering challenge metadata, solution artifacts, and key steps taken during the solving process. It generates a Markdown writeup in a submission template that includes a summary, detailed solution steps, and the final flag. The skill emphasizes concise steps, minimal yet complete scripts for reproducing the solution, and proper attribution. Users are guided to avoid splitting core solving steps into multiple fragments and are reminded to redact sensitive data only when explicitly requested. The skill also encourages best practices such as ensuring metadata completeness, runnable code, reproducibility, and concise writeup length.

Ideal for CTF competitors, team leads, and educators in cybersecurity, this skill is suitable for anyone needing to document solutions efficiently and clearly. It is compatible with filesystem-based agents capable of running Bash and Python 3, and can utilize common tools such as file reading, writing, editing, globbing, grepping, and web search/fetch. By reducing manual effort and standardizing writeups, it helps teams maintain consistent documentation quality and accelerates verification and review processes.