Show HN: Aiaiai.guide: Plain-English mental model for LLM apps, tools and agents

Aiaiai.guide is a plain-English educational resource explaining how LLM applications work, from stateless models to chatbots, tool use, and agents. Written for non-technical audiences, it provides a progressive mental model across nine chapters that build on each other. The guide prioritizes practical understanding over technical depth, making LLM concepts accessible to stakeholders and non-engineers.

Key Points

• •Stateless LLMs form the foundation—they process input and generate output without inherent memory or state
• •Chatbots emerge when you add conversation history and context management to stateless LLMs
• •Tool use (function calling) allows LLMs to interact with external systems and APIs beyond text generation
• •Agents represent autonomous systems where LLMs decide which tools to use and when, creating feedback loops
• •Context windows are a hard constraint that shapes all LLM application design decisions
• •Progressive learning model: each chapter builds on previous concepts for cumulative understanding
• •Mental models matter more than implementation details for non-technical stakeholders
• •The guide bridges the gap between raw LLM capabilities and practical application patterns
• •Open to community feedback and contributions via GitHub for continuous improvement

Workflow Diagram

Concepts