---
title: "tool si.read.capture_health"
description: "a platform and a window, or nothing: captures by platform in the window against the window before, with a verdict."
section: reference
address: /reference/tools/si-read-capture_health
contract: 0476e35e6e275db5
---

# tool si.read.capture_health

a platform and a window, or nothing: captures by platform in the window against the window before, with a verdict.

[figure: Over MCP, si.read.capture_health takes CaptureHealthInput and returns a card whose body is CaptureHealth.]

captures by platform in the window against the window before, with a verdict. The call needs the read grant at the user rung.



| | |
|---|---|
| input | [CaptureHealthInput](/concepts/capturehealthinput) |
| result | a card whose body is [CaptureHealth](/concepts/capturehealth) |
| read-only | yes |
| destructive | no |
| card address | `ui://scale-intelligence/cards/CaptureHealth` |
| HTTP route | [`/v1/read/capture_health`](/reference/read/capture_health) |





| field | type | required | note |
|---|---|---|---|
| `platform` | `text` | no |  |
| `window` | [Window](/concepts/window) | no |  |