claude-osint provides two structured SKILL.md files (osint-methodology and offensive-osint) that embed expert-level recon tradecraft into Claude. The skills include 90+ recon modules, secret-regex patterns, dorks, credential validators, and attack-path templates totaling over 5,500 lines. Accompanying Python scripts offer a stdlib-only secret scanner and a HackerOne reference agent. The system is designed for authorized security testing engagements, providing reconnaissance methodology and tactical tool references to augment an AI assistant with domain-specific offensive security capabilities.