AI agents call xbrl_get_raw_xml to retrieve information from Arelle without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to fetch or retrieve the underlying XML representation of XBRL financial documents. Retrieval of data without modification, execution of arbitrary operations, or deletion falls under the Read category. The blast radius is low since it only exposes existing filed financial data in its raw form.
From the tool's definition Tool name 'xbrl_get_raw_xml' indicates retrieval of raw XML data from XBRL filings. The verb 'get' is characteristic of read-only operations.
Attacks that exploit this kind of access
xbrl_get_raw_xml. It is categorised as a Read tool in the Arelle MCP Server, which means it retrieves data without modifying state.
Register the Arelle MCP server in PolicyLayer and add a rule for xbrl_get_raw_xml: 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 Arelle. Nothing to install.
xbrl_get_raw_xml 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 xbrl_get_raw_xml 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 xbrl_get_raw_xml. 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.
xbrl_get_raw_xml is provided by the Arelle MCP server (thekinghippopotamus/arelle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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