Official Lark/Feishu CLI tool with 200+ commands and 26 AI agent skills, designed for agent-native operation and easy integration with AI runtimes.

A comprehensive toolkit for enhancing GitHub Copilot with specialized agents, instructions, and workflows.

A comprehensive collection of ready-to-use scientific and research skills for AI agents.

Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks.

Papermark is the open-source DocSend alternative with built-in analytics and custom domains.

a list of disposable email domains

Stackryze Domains: Free Domain for Everyone, Claim yours today.

💀 Generate malicious PDF test files for testing phone-home callbacks, SSRF, XSS, NTLM credential theft, and data exfiltration in PDF viewers, converters, and web applications. Can be used with Burp Collaborator or Interact.sh

Take a list of domains, crawl urls and scan for endpoints, secrets, api keys, file extensions, tokens and more

A comprehensive collection of 30+ Claude Code skills for cold email and outbound sales, covering strategy, infrastructure, lead sourcing, and copywriting, with a guided kickoff flow and signal playbooks.

Protect against malicious open source packages 🤖