List all datasets in an ERDDAP server
AI agents call search_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.
The tool performs a read-only operation to discover and list available datasets. It retrieves metadata without modifying, executing, deleting, or committing any financial actions. The sibling tools (get_dataset_variable_data, get_variable_standard_names, list_dataset_variables, list_datasets) further confirm this is part of a data discovery and retrieval interface.
From the tool's definition Tool name is 'search_datasets' and description states 'List all datasets in an ERDDAP server' — this is a retrieval/query operation with no side effects.
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 search_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.
search_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 search_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 search_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.
search_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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