ページのアクセシビリティスナップショットを取得します。要素にはref（@e1, @e2など）が付与され、クリックや入力操作で使用できます。
AI agents call browser_snapshot to retrieve information from Agent Browser MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and captures the current state of a webpage (DOM structure, accessibility tree, element references) to enable subsequent interactions. It has no side effects, does not execute code, modify data, or trigger external operations. While it's part of a browser automation system, the snapshot tool itself is purely observational, similar to browser_screenshot and browser_get_text on the same server.
From the tool's definition Tool description states it 'takes an accessibility snapshot of the page' and assigns references to elements for use in click/input operations. The tool retrieves page state and metadata without performing actions or modifications.
Attacks that exploit this kind of access
ページのアクセシビリティスナップショットを取得します。要素にはref（@e1, @e2など）が付与され、クリックや入力操作で使用できます。. It is categorised as a Read tool in the Agent Browser MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Agent Browser MCP Server MCP server in PolicyLayer and add a rule for browser_snapshot: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Agent Browser MCP Server. Nothing to install.
browser_snapshot is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the browser_snapshot rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for browser_snapshot. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
browser_snapshot is provided by the Agent Browser MCP Server MCP server (nocall-corp/agent-browser-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
browser_snapshot is one line of Agent Browser MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →