opendata_regions_list
List the controlled region vocabulary used by the provider registry (e.g.
This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/opendata-regions-list.md
What opendata_regions_list does on Meta Data Mcp
AI agents call opendata_regions_list to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why opendata_regions_list is rated Low
This tool queries and retrieves metadata about region vocabulary from a provider registry. It is a simple data retrieval operation with no ability to modify, delete, or execute external actions. The low severity reflects that exposing region vocabulary lists poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'opendata_regions_list' and description 'List the controlled region vocabulary' indicate a read-only retrieval operation. The verb 'list' is explicitly listed in the Read category guidelines.
Attacks that exploit this kind of access
The rule that runs opendata_regions_list safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Meta Data Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For opendata_regions_list, this is the rule to start with:
opendata_regions_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every opendata_regions_list call is checked against it from then on.
Questions about opendata_regions_list
List the controlled region vocabulary used by the provider registry (e.g. It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.
Register the Meta Data MCP server in PolicyLayer and add a rule for opendata_regions_list: 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 Meta Data Mcp. Nothing to install.
opendata_regions_list 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 opendata_regions_list 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 opendata_regions_list. 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.
opendata_regions_list is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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