Lists all locally saved CSV datasets in the downloads directory.
AI agents call cbs_list_local_datasets to retrieve information from Nl Opendata without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates existing local datasets without creating, modifying, deleting, or executing any operations. It is a pure read operation with minimal security risk—the worst outcome is information disclosure of dataset names already stored locally.
From the tool's definition Tool name 'cbs_list_local_datasets' and description 'Lists all locally saved CSV datasets in the downloads directory' indicate a query/retrieval operation with no modification or deletion.
Attacks that exploit this kind of access
Lists all locally saved CSV datasets in the downloads directory. It is categorised as a Read tool in the Nl Opendata MCP Server, which means it retrieves data without modifying state.
Register the Nl Opendata MCP server in PolicyLayer and add a rule for cbs_list_local_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 Nl Opendata. Nothing to install.
cbs_list_local_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 cbs_list_local_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 cbs_list_local_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.
cbs_list_local_datasets is provided by the Nl Opendata MCP server (soulnai/nl-opendata-mcp). 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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