pex_get_account_details · PEX MCP Server MCP: Risk & Policy

WHAT IT DOES

What pex_get_account_details does on PEX MCP Server

AI agents call pex_get_account_details to retrieve information from PEX MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why pex_get_account_details needs a policy

This tool retrieves account information for a specified account ID. The 'get' verb and lack of any modification, deletion, or action-triggering capability classify it as a Read operation. While account details may contain sensitive financial information, the tool itself performs no destructive, executable, or financial action—it only queries and returns data.

From the tool's definition Tool name 'pex_get_account_details' and description 'Get cardholder account details by account ID' indicate a retrieval operation with no modification or execution of actions.

Attacks that exploit this kind of access

Questions about pex_get_account_details

What does the pex_get_account_details tool do? +

Get cardholder account details by account ID. It is categorised as a Read tool in the PEX MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on pex_get_account_details? +

Register the PEX MCP Server MCP server in PolicyLayer and add a rule for pex_get_account_details: 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 PEX MCP Server. Nothing to install.

What risk level is pex_get_account_details? +

pex_get_account_details is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit pex_get_account_details? +

Yes. Add a rate_limit block to the pex_get_account_details 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.

How do I block pex_get_account_details completely? +

Set action: deny in the PolicyLayer policy for pex_get_account_details. 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.

What MCP server provides pex_get_account_details? +

pex_get_account_details is provided by the PEX MCP Server MCP server (pexcard/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.