---
title: "tool si.act.watch_site"
description: "a `WatchSiteInput`: the watch, ready or not ready; for a preview, the pages it would read and the changes it would have raised over the window."
section: reference
address: /reference/tools/si-act-watch_site
contract: 0476e35e6e275db5
---

# tool si.act.watch_site

a `WatchSiteInput`: the watch, ready or not ready; for a preview, the pages it would read and the changes it would have raised over the window.

[figure: Over MCP, si.act.watch_site takes WatchSiteInput and returns a card whose body is SiteWatch.]

the watch, ready or not ready; for a preview, the pages it would read and the changes it would have raised over the window. The call needs the act grant at the brand rung.



| | |
|---|---|
| input | [WatchSiteInput](/concepts/watchsiteinput) |
| result | a card whose body is [SiteWatch](/concepts/sitewatch) |
| read-only | no |
| destructive | yes |
| card address | `ui://scale-intelligence/cards/SiteWatch` |
| HTTP route | [`/v1/act/watch_site`](/reference/act/watch_site) |





| field | type | required | note |
|---|---|---|---|
| `watch` | [SiteWatch](/concepts/sitewatch) | yes |  |
| `flow` | `one of write \| preview \| arm \| disarm` | yes |  |