Point poseur at a URL. Describe the visitor, the task, the feeling you want to track. Synthetic users visit the site and narrate what happened — ending with a structured signal you can regress on every deploy.
A roleplaying synthetic visitor with a specific persona, specific stakes, and a specific emotional signal to track — producing a timestamped inner monologue as they use your website, ending with a structured signal line.
[00:05] Page loads. Headline: "AI for your team." Vague.
[00:15] Scrolling. Testimonials from companies I don't recognize. Not a trust signal.
[00:28] Still unclear what this actually does. No screenshot, no demo link.
[00:40] "Book a demo" — the only CTA. I don't book demos for things I don't understand yet.
[00:52] Back button. I'm out.
[SIGNAL] decreased; moderate; the page asked for a demo booking before earning enough trust to justify one
That [SIGNAL] line is structured. Direction, intensity, key moment. Aggregate across
hundreds of runs, plot over time, diff across deploys. A qualitative signal you can regress on.
But the landing page buries pricing. Your visitor bounces. Your tests don't care.
👍A scalar. You don't know what the visitor liked, hated, or silently stopped trusting.
An AI graded your AI against a rubric. Whose taste is that, exactly?
Three weeks ago, in a scheduled session you can't re-run on today's deploy.
The visitor's context. Device, browser, network, session state. Plain text.
What they're trying to do on your site. Who they are, when they'd give up.
The emotional dimension that matters to your visitors.
Teams shipping AI agents whose web-facing surface is the product — landing pages, chat UIs, onboarding flows, playgrounds. Wire poseur into CI. Know whether your new prompt, new model, or new layout actually landed.
Also useful for: product teams scanning their own public sites for friction real users feel but don't report.
Poseur only scans sites you've proven you own. Verification is one file upload away.
Poseur scans public websites you own. Sign in with Google, verify a domain, and watch the experience log stream back.