# Examples & cookbooks

Start from an independent sample or explore a complete application flow.

## Run without an API key

The independent consumer apps use the real SDK with fixed responses. They are useful for verifying an installation before connecting live inference.

```sh
# From a repository checkout, with Node 22.12+:
npm ci
npm run pack:devtools
cd examples/react-vite
npm install
npm run dev
```

Open the URL printed by Vite. Trigger a sample request and open the inspector. Sample answers are fixed; editing a message does not invoke a model.

| Example                                                                                       | What to explore                                                       |
| --------------------------------------------------------------------------------------------- | --------------------------------------------------------------------- |
| [React + Vite](https://github.com/diegoag64/jev-devtools/tree/main/examples/react-vite)       | Minimal public-export integration, server plugin, and sample request  |
| [Next.js App Router](https://github.com/diegoag64/jev-devtools/tree/main/examples/nextjs-app) | Route Handler, Server Action, and Server Component sharing an adapter |
| [Playground](https://github.com/diegoag64/jev-devtools/tree/main/apps/playground)             | Choice, Score, Noul, Box, retries, failures, and cancellation         |

The playground is a local tool. Its production build is not a hosted interactive demo.

## Explore complete flows

Cookbooks are repository examples, not files shipped in npm. Each includes setup and sample limitations.

| Cookbook                                                                                                                 | Techniques                                            |
| ------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------- |
| [SDE cascade](https://github.com/diegoag64/jev-devtools/tree/main/cookbooks/sde-cascade)                                 | Returning conditionals and explicit escalation policy |
| [Hierarchical classification](https://github.com/diegoag64/jev-devtools/tree/main/cookbooks/hierarchical-classification) | Bounded loops, collections, beam versus greedy search |
| [Structure recovery](https://github.com/diegoag64/jev-devtools/tree/main/cookbooks/structure-recovery)                   | Tasks, runtime requests, and conditional continuation |
| [Simple memory](https://github.com/diegoag64/jev-devtools/tree/main/cookbooks/simple-memory)                             | Customer-scoped, run-local sample memory              |
| [RAG passages](https://github.com/diegoag64/jev-devtools/tree/main/cookbooks/rag-passages)                               | Inspectable passage workflow                          |
| [Skill suggestion](https://github.com/diegoag64/jev-devtools/tree/main/cookbooks/skill-suggestion)                       | Dynamic questions and application-owned ranking       |

## Add your own interaction

For docs contributors: examples can have small, page-specific TypeScript modules. The introduction's fixture switcher is one example. Richer demos can load React or the public package lazily when needed. Keep sample policies labeled and API credentials on a server; the static docs app has no inference backend.

## Learn one method at a time

[Flows from scratch](/guides/flow-basics/) has small checked examples for tasks, Jev requests, conditionals, parallel lanes, maps, and loops. Use the [API glossary](/api/reference/) to look up their interfaces.