☕ Skill tree

Learn modern AI, level by level.

Eight skills take you from “write me a prompt” to building AI agents. Each one: read the concept, try the tool, mark it done. Your progress is saved in this browser only, no account, no tracking, ever.

0 of 8 skills

Start here

Prompting

Get good answers out of any AI, on any topic.

Learn: Learn Prompting Try: Prompt Simulator

Tokens & context

Why models run out of room, and how to manage it.

Learn: Context window Try: Token Counter

Build with it

Structured outputs

Make AI return clean, valid JSON every time.

Learn: Structured outputs Try: Structured Output Builder

Tool calling

Let a model call functions and take actions.

Learn: Tool calling Try: Tool Call Visualizer

Embeddings

Turn meaning into vectors, the engine of search.

Learn: Embeddings Try: Embedding Explorer

Go advanced

RAG & retrieval

Ground a model in your own documents.

Learn: RAG Try: RAG Chunking Visualizer

Agents & memory

Build systems that act, and remember.

Learn: Agent memory Try: Agent Memory Simulator

MCP & architecture

Wire tools into a real system with MCP.

Learn: MCP Try: Pattern Builder

Prefer a guided route? Take a learning path, or explore the knowledge map.