get_dataset_variable_data
AI agents call get_dataset_variable_data to retrieve information from Erddap Mcp Demo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves data from ERDDAP datasets—a core Read operation with no modification, deletion, or execution of arbitrary code. The empty description and Read-only context of sibling tools support low severity and high confidence. No financial impact or destructive capacity.
From the tool's definition Tool name 'get_dataset_variable_data' indicates data retrieval. Sibling tools (get_variable_standard_names, list_dataset_variables, list_datasets, search_datasets) are all Read operations querying oceanographic metadata and catalogs.
Attacks that exploit this kind of access
get_dataset_variable_data. It is categorised as a Read tool in the Erddap Mcp Demo MCP Server, which means it retrieves data without modifying state.
Register the Erddap Mcp Demo MCP server in PolicyLayer and add a rule for get_dataset_variable_data: 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 Erddap Mcp Demo. Nothing to install.
get_dataset_variable_data 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_dataset_variable_data 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_dataset_variable_data. 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_dataset_variable_data is provided by the Erddap Mcp Demo MCP server (srstsavage/erddap-mcp-demo). 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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