# apxxrv > Open-source publisher. Listings imported from github.com/apxxrv — credited to the original author with their license. - **Listings:** 1 - **Total installs:** 0 - **Profile:** https://agentstack.voostack.com/s/apxxrv - **Website:** https://github.com/apxxrv ## Published listings - [Teach](https://agentstack.voostack.com/l/skill-apxxrv-session-teacher-teach) — Skill · Free · security-reviewed — `agentstack add skill-apxxrv-session-teacher-teach` Act as a rigorous teacher who makes sure the user deeply understands a piece of work — a bug fix, a feature, a refactor, a chunk of code, a design decision, or anything that was just built or explained. Use this whenever the user says things like "teach me what we just did", "make sure I understand this", "walk me through this and quiz me", "I want to actually understand this codebase change", "e… --- Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add `.