AI agents call retrieve_by_zbd_id_gamertags to retrieve information from Zbd without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns user identification information based on a gamertag input. There is no modification, deletion, or execution of code. The operation is a straightforward read-only lookup. Given the context of the sibling tools (many financial operations like charges and withdrawals), this is a low-risk informational retrieval that supports downstream operations but causes no direct harm if misused.
From the tool's definition Tool name contains 'retrieve' and description states 'Retrieve ZBD user ID from a Gamertag' — a pure data lookup operation with no side effects.
Attacks that exploit this kind of access
Retrieve ZBD user ID from a Gamertag. It is categorised as a Read tool in the Zbd MCP Server, which means it retrieves data without modifying state.
Register the Zbd MCP server in PolicyLayer and add a rule for retrieve_by_zbd_id_gamertags: 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 Zbd. Nothing to install.
retrieve_by_zbd_id_gamertags 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 retrieve_by_zbd_id_gamertags 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 retrieve_by_zbd_id_gamertags. 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.
retrieve_by_zbd_id_gamertags is provided by the Zbd MCP server (zebedeeio/zbd-payments-typescript-sdk). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
retrieve_by_zbd_id_gamertags is one line of Zbd's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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