Get advanced cardholder account details by account ID
AI agents call pex_get_advanced_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.
This tool retrieves account details by account ID without creating, modifying, deleting, or executing any operations. While it accesses financial account information (which could be sensitive), the action itself is purely informational with no side effects. The blast radius of misuse is limited to information disclosure rather than financial transactions or data destruction.
From the tool's definition Tool name contains 'get' and description states 'Get advanced cardholder account details' — a retrieval operation with no modification or execution.
Attacks that exploit this kind of access
Get advanced 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.
Register the PEX MCP Server MCP server in PolicyLayer and add a rule for pex_get_advanced_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.
pex_get_advanced_account_details 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 pex_get_advanced_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.
Set action: deny in the PolicyLayer policy for pex_get_advanced_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.
pex_get_advanced_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.
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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