---
title: "tool si.act.browse_step"
description: "a `BrowseStepInput`: the step's result: the accessibility tree, the text, the markdown, a screenshot's hash, or a download set."
section: reference
address: /reference/tools/si-act-browse_step
contract: 0476e35e6e275db5
---

# tool si.act.browse_step

a `BrowseStepInput`: the step's result: the accessibility tree, the text, the markdown, a screenshot's hash, or a download set.

[figure: Over MCP, si.act.browse_step takes BrowseStepInput and returns a card whose body is BrowsingStep.]

the step's result: the accessibility tree, the text, the markdown, a screenshot's hash, or a download set. The call needs the act grant at the strategy rung.



| | |
|---|---|
| input | [BrowseStepInput](/concepts/browsestepinput) |
| result | a card whose body is [BrowsingStep](/concepts/browsingstep) |
| read-only | no |
| destructive | yes |
| card address | `ui://scale-intelligence/cards/BrowsingStep` |
| HTTP route | [`/v1/act/browse_step`](/reference/act/browse_step) |





| field | type | required | note |
|---|---|---|---|
| `session` | `id` | yes |  |
| `step` | [BrowsingStep](/concepts/browsingstep) | yes |  |