Installable GitHub library of 1,273+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
$ npx skills add promptfoo/promptfoo
21.5K stars74 qualityClaude Code + OpenAI Agents
High-confidence pick with strong adoption and healthy maintenance signals.
Turn any AI Agents into world-class data analysts through the open context layer that gives AI agents grounded, governed memory, context, SQL across 20+ data sources, that helps you build GenBI, agentic BI, text-to-sql, dashboards, and agentic analytics.
$ npx skills add Canner/WrenAI
15.3K stars72 qualityClaude Code
High-confidence pick with strong adoption and healthy maintenance signals.
[MLsys2026]: RAG on Everything with LEANN. Enjoy 97% storage savings while running a fast, accurate, and 100% private RAG application on your personal device.
$ npx skills add yichuan-w/LEANN
11.7K stars72 qualityClaude Code + OpenAI Agents
High-confidence pick with strong adoption and healthy maintenance signals.
vulnx 🕷️ an intelligent Bot, Shell can achieve automatic injection, and help researchers detect security vulnerabilities CMS system. It can perform a quick CMS security detection, information collection (including sub-domain name, ip address, country information, organizational information and time zone, etc.) and vulnerability scanning.
$ npx skills add anouarbensaad/vulnx
2.1K stars50 qualityClaude Code
Solid option that is likely worth shortlisting for production workflows.Check: Repository looks stale