获取当前浏览器页面的文本内容
AI agents call get_current_page_text to retrieve information from MCP Browser Text Reader without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and extracts text from an already-loaded web page. It performs data retrieval without side effects, qualifying it as a Read operation. Severity is medium rather than low because the extracted content could include sensitive information (credentials, PII, confidential data) depending on what pages the browser navigates to, creating risk if an AI agent misuses it to scrape sensitive data.
From the tool's definition Tool retrieves text content from the current browser page ('获取当前浏览器页面的文本内容' = 'get current browser page text content'). It is a data retrieval operation with no modification capability.
Attacks that exploit this kind of access
获取当前浏览器页面的文本内容. It is categorised as a Read tool in the MCP Browser Text Reader MCP Server, which means it retrieves data without modifying state.
Register the MCP Browser Text Reader MCP server in PolicyLayer and add a rule for get_current_page_text: 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 MCP Browser Text Reader. Nothing to install.
get_current_page_text 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 get_current_page_text 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 get_current_page_text. 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.
get_current_page_text is provided by the MCP Browser Text Reader MCP server (tikous/mymcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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