List all datasets in an ERDDAP server
AI agents call list_datasets 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.
This tool retrieves metadata about available datasets without modifying, deleting, or executing operations. It has minimal blast radius—the only risk would be information disclosure of dataset names/metadata, which is typically public in ERDDAP servers. Classified as Read with low severity.
From the tool's definition Tool name 'list_datasets' and description 'List all datasets in an ERDDAP server' indicate a retrieval operation with no side effects. This is a query operation that enumerates available datasets.
Attacks that exploit this kind of access
List all datasets in an ERDDAP server. 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 list_datasets: 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.
list_datasets 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 list_datasets 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 list_datasets. 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.
list_datasets 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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