Shortest

The core idea is a single readable sentence instead of a script. You write something like "Login to the app using email and password" and pass in your credentials, and Shortest works out the rest. That means a new teammate can read a test and understand what it checks without decoding selectors. It also lowers the bar for writing your first end-to-end test.

Shortest drives a real Chromium browser through Playwright, the same engine behind many professional test suites. You keep Playwright's browser options and can pass custom context settings in your config. Because it inherits that foundation, the tool fits into existing JavaScript and TypeScript projects rather than forcing a new stack on you.

The reasoning layer runs on Anthropic's Claude models through the AI SDK. Shortest reads the page, plans the steps, and decides whether the result matches what you described. You can point it at a different key or provider through the ai.config block, but the default path assumes your own Anthropic account and API key.

You can group related flows into a chain, so a login step feeds a set of actions that follow it. Lifecycle hooks like beforeAll and afterEach let you sign a user in, clear state, or close the page around each test. This makes reusable flows practical, so you write the login sequence once and reuse it across many tests.

Shortest isn't limited to clicking around a browser. You can describe an API call in natural language, or build a request with a method, URL, and query parameters, and let the AI confirm the response looks right. Teams that test both the interface and the backend get one tool instead of two.

Beyond running tests, Shortest ships commands to plan, generate, and analyze your tests from the terminal. You can run a single file, a single test by line number, or the whole suite in headless mode for CI. That range means the tool covers setup, authoring, and execution without leaving the command line.