2026-04-29 · 3 min read
Preview environments for coding agents
Why Prevu gives agents a stable URL, a real shell, and a small surface area for checking their own work.
Coding agents are becoming capable enough to make broad changes, run tests, and explain tradeoffs. The missing piece is often simpler: a place where the agent can see what it changed.
Prevu is a small preview layer for that workflow. It gives each task a real environment, a stable public URL, and a shell that agents can use without asking a human to wire everything together by hand.
Why URLs matter
A preview URL is shared context. Humans can click it. Agents can curl it. CI can probe it. The URL becomes a durable reference point for the task instead of another screenshot or “works on my machine” note.
The shape we like
- One environment per task, disposable by default.
- Human-readable hostnames like
feature-3000.prevu.page. - Direct terminal access for agents and developers.
- Small primitives instead of a large deployment platform.
The goal is not to replace staging. It is to make the loop before staging much tighter: change, run, inspect, share, and throw away.