anthropics/claude-plugins-official: Official, Anthropic-managed directory of high quality Claude Code Plugins.
hypnguyen1209/offensive-claude: Offensive security toolkit for Claude Code covering red team, exploit dev, AD attacks, EDR bypass, mobile pentest
elementalsouls/Claude-BugHunter: A Claude Code skill bundle for bug hunting and external red-team work - 51 skills, 15 slash commands, 681 disclosed-report patterns curated across 24 vulnerability classes, plus enterprise identity + infrastructure attack matrices.
DrCatHicks/learning-opportunities: A Claude or Codex skill for deliberate skill development during AI-assisted coding
0xSteph/pentest-ai-agents: Turn Claude Code into your offensive security research assistant. Specialized AI subagents for authorized penetration testing plan engagements, analyze recon, research exploits, build detections, audit STIGs, and write reports.
mukul975/Anthropic-Cybersecurity-Skills: 754 structured cybersecurity skills for AI agents · Mapped to 5 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND & NIST AI RMF · agentskills.io standard · Works with Claude Code, GitHub Copilot, Codex CLI, Cursor, Gemini CLI & 20+ platforms · 26 security domains · Apache 2.0
mukul975/Threatswarm: 27 scope-enforced AI agents that run the full pentest kill-chain (recon → exploit → post-ex → DFIR → report) as a one-command Claude Code plugin. Backed by 754 MITRE-mapped skills.