Get valid values for a parameter (e.g., available tables, line codes, geo areas)
AI agents call get_parameter_values to retrieve information from Bureau of Economic Analysis (BEA) 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 reference data about valid parameter values, similar to querying an API schema or list of available options. It has no capability to modify, delete, or execute operations—it simply returns informational metadata to help users understand what data queries are possible.
From the tool's definition Tool name 'get_parameter_values' and description 'Get valid values for a parameter' indicates retrieval of metadata/enumeration data. The examples given (available tables, line codes, geo areas) are informational lookups with no side effects.
Attacks that exploit this kind of access
Get valid values for a parameter (e.g., available tables, line codes, geo areas). It is categorised as a Read tool in the Bureau of Economic Analysis (BEA) MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Bureau of Economic Analysis (BEA) MCP Server MCP server in PolicyLayer and add a rule for get_parameter_values: 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 Bureau of Economic Analysis (BEA) MCP Server. Nothing to install.
get_parameter_values 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 get_parameter_values 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 get_parameter_values. 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.
get_parameter_values is provided by the Bureau of Economic Analysis (BEA) MCP Server MCP server (shawndrake2/mcp-bea). 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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