A framework with enough structure that an agent can't get lost.

Track 01 · 11 lessons

Foundations

The syntax and the mental model. Short, runnable, no fluff.

Runnable exercises

Track 02 · 3 lessons

AI-Native NestJS

Configuring agents, harnesses and feedback loops for this language. Updated as the tooling moves.

New

Track 03 · 4 lessons

Review & Verify

How generated code fails in this language, and the checks that catch it before your users do.

New

AI-Native

Nest conventions make agent-written code reviewable

The framework's opinionated structure turns out to be exactly what makes generated back-end code fast to review. Here is how to lean on it.

AI-Native

Writing an AGENTS.md for NestJS

Nest already decides where things go, so this file has one real job: the security configuration the framework will happily let you get wrong.

AI-Native

Per-tenant token budgets in NestJS

Nest's interceptors and guards are exactly the right shape for cost control: measure in one place, enforce before the handler runs, and no feature can be added without both.

Hello, World!

A running NestJS application in three commands, and what each generated file is actually for.

Modules

The unit of organisation in Nest, and the thing that decides what can see what.

Controllers and routing

Parse the request, call a service, return a value. Everything else in a controller is a mistake.

Providers and dependency injection

How Nest constructs your objects, and the injection patterns worth knowing beyond the constructor.

DTOs and validation

The boundary where untrusted input becomes a typed object. Get this right and most of your input-handling bugs disappear.

Guards, authentication and authorisation

Guards answer one question: may this request proceed? Getting the difference between authentication and authorisation right is where most back-end vulnerabilities live.