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Learn/L2 · How the Web Works

Authentication

Authentication answers 'who are you?'.

Difficulty 2/5
Short

Plain English

Authentication answers 'who are you?'. Picture it like this: Showing your ID at the door. In the apps you ship (Agentify, wedding portals, CRM), you will bump into this on almost every screen — name it clearly when you prompt your coding agent.

Analogy

Showing your ID at the door.

Go deeper

Authentication answers 'who are you?'.

Common mistakes

  • Letting the AI rename this concept three different ways in one PR.
  • Building UI before you can say what is stored and who can change it.

AI-agent trap

Agents may invent jargon here. Ask them to explain the concept in plain English first, then map it to your schema and one real screen.

Summary

Authentication answers 'who are you?'. Showing your ID at the door. Ask yourself: where does this live in the database, which function changes it, and which screen shows it?

Confidence: