Shortest

Judgement

What it is

Developer tool

What it does

An end-to-end testing framework where tests are written as plain-English instructions that Claude carries out in a Playwright browser.

Adopt it when

You want to try natural-language E2E tests on a web app and accept paying for model calls on every run.

Watch out

Runs are slower, cost API fees and are less deterministic than scripted tests, and development has slowed with no push since August.

Ready for

Experimental

Runs as

Command line and library

Built with

TypeScript, Playwright and Anthropic API

How established

Established: started 2 years ago, latest release v0.4.9.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Shortest → TypeScript → Go → runs on a microchip

How compilers were built, back to punched paper tape

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