Get AccountId and ExtensionId from RingCentral credentials. Use ExtensionId for individual user, AccountId for entire company.
AI agents call ffs_get_user_info to retrieve information from FFS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a Read operation as it queries and retrieves existing user identity information. However, severity is medium rather than low because AccountId and ExtensionId are sensitive organizational identifiers that could be used in conjunction with other tools (like ffs_update_account) to make unauthorized feature flag changes affecting entire companies or users.
From the tool's definition Tool retrieves user account information (AccountId and ExtensionId) from RingCentral credentials without modifying data. The description states 'Get AccountId and ExtensionId' which indicates data retrieval.
Attacks that exploit this kind of access
Get AccountId and ExtensionId from RingCentral credentials. Use ExtensionId for individual user, AccountId for entire company. It is categorised as a Read tool in the FFS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FFS MCP Server MCP server in PolicyLayer and add a rule for ffs_get_user_info: 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 FFS MCP Server. Nothing to install.
ffs_get_user_info 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 ffs_get_user_info 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 ffs_get_user_info. 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.
ffs_get_user_info is provided by the FFS MCP Server MCP server (zhipingyang/ffs-mcp-server). 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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