ctf-osint

Assemble public OSINT data from social media, geolocation, DNS, and metadata into CTF clues.

3.0k|346|Updated Feb 1, 2026
One-click install
npx skills add https://github.com/ljagiello/ctf-skills --skill ctf-osint-ljagiello
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ctf-osint
Source: https://github.com/ljagiello/ctf-skills/tree/main/ctf-osint
Command: npx skills add https://github.com/ljagiello/ctf-skills --skill ctf-osint-ljagiello

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

OSINT for CTF challenges helps gather publicly available information, organize it, and surface clues while respecting privacy boundaries.

Core Features & Use Cases

  • Aggregates and analyzes public data from social media, geolocation sources, DNS records, and metadata to surface potential flag paths.
  • Provides a repeatable workflow for evidence collection, corroboration across sources, and an audit-friendly trail.
  • Use Case: Given a target, compile a timeline of public clues that lead to a final flag location.

Quick Start

Use OSINT techniques to identify public traces for a given target and assemble evidence-backed clues.

Frequently Asked Questions about ctf-osint

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is the best way to gather OSINT clues for a CTF challenge?

To compile a timeline of public clues for a CTF target, you aggregate public OSINT data from social media, geolocation sources, and metadata. This process assembles evidence-backed clues into a reproducible investigation trail that leads to a final flag location.

How do I trace a target across social media using OSINT techniques?

To trace a target across social media, you apply cross-platform tracing to identify public traces and assemble evidence-backed clues. This method aggregates available public data to surface potential flag paths while maintaining a reproducible investigation trail for verification.

Can I use OSINT metadata analysis to find geolocation flags?

Yes, OSINT metadata analysis can find geolocation flags by extracting and correlating public data from digital files and location sources. This surfaces potential CTF clues and produces actionable leads for identifying final flag locations.

Does this OSINT workflow respect privacy boundaries during information gathering?

Yes, this OSINT workflow respects privacy boundaries by providing safety-aware guidance during information gathering. It focuses on publicly available data and includes structured precautions to prevent privacy violations while surfacing potential CTF clues.

Are there limitations when using public data for domain research in CTFs?

Limitations when using public data for domain research in CTFs include the reliance on publicly available DNS records and the need for safety-aware guidance to prevent privacy violations. The workflow requires evidence corroboration across sources to validate potential flag paths.