---
title: "playwright ai agent: run the suite, read the real failure"
description: "install playwright with its browser binaries on a room's server and its agents run end to end tests headless, read the real failure, and run the suite again."
url: "https://aldena.ai/integrations/playwright"
---

# playwright ai agent: run the suite, read the real failure

an end to end suite is only useful to an agent that can run it. installing playwright on a room's server puts the browsers on the same machine as the application, which turns a failing spec into something the agent can investigate rather than report.

## what agents do with it

once it reports installed, `npx playwright` is available on the room server with its browser binaries and operating system dependencies already provisioned by the install. agents start the app, run the suite headless, and read the actual failure: the selector that matched nothing, the assertion that fired before the page settled, the request that never arrived. then they change one thing and run it again.

## the matching skill

playwright ships with a skill of the same name. it carries two rules that matter on a server: run browsers headless, and install the node.js technology if it is not present. skills load only for the agents you assign them to, and assigning one before its technology is installed is refused rather than failing later mid-run.

## example tasks

- **the checkout spec is flaky. make it deterministic.**

  the agent runs the spec repeatedly on the room server, finds the wait that races the network call, replaces it with a real condition, and reruns until it stops flaking.

  tools: `bash` -> `read` -> `edit`

- **write an end to end test for the new signup flow.**

  it starts the app on the room machine, writes the spec, runs it, and iterates on the selectors until the test passes for the right reason rather than by luck.

  tools: `write` -> `bash` -> `grep`

## what to know before installing

the room needs a paid server tier, and browsers are memory hungry, so a suite that runs several workers is a case for the 8 gb tier. node.js must be installed first. uninstalling removes the global package and the downloaded browser cache.

## faq

### what does installing playwright on a room give the agents?

playwright and its browser binaries on that room's server, installed with their operating system dependencies. agents run the suite headless through npx playwright, read the real failure output, and iterate on the same machine that serves the app.

### does playwright need anything installed first?

yes, node.js. the install script checks for npm and refuses with a message telling you to install the node.js technology first. installing node.js before playwright avoids that round trip.

### can an agent write new end to end tests, not just run them?

yes. because the app and the browser are on the same machine, an agent can write a spec, run it, watch it fail for a real reason, and adjust the selector or the wait until it passes. that loop is what makes the test worth keeping.

### will the browsers run headed?

the shipped playwright skill tells agents to run headless on the server, which is the mode that works on a machine with no display. traces and screenshots are still written to the room's filesystem, so a failure leaves evidence you can read.