AI agents call get_wmts_tile_url to retrieve information from French Open Data & IGN without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pre-generated map tile URLs from IGN cartographic services, a read-only operation with no side effects. It does not modify, delete, or execute code—it simply queries and returns tile references. No confidentiality, integrity, or availability risks exist beyond normal API rate-limiting concerns. Severity is low due to the benign nature of publicly available cartographic data access.
From the tool's definition Tool name 'get_wmts_tile_url' and context indicate it retrieves Web Map Tile Service (WMTS) URLs for cartographic tiles. Description appears incomplete ('Générer l'), but the naming pattern and sibling tools (calculate_route, geocode_address, get_dataset, etc.
Documented attack patterns abuse exactly the kind of access get_wmts_tile_url gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and French Open Data & IGN, and nothing reaches the server without passing your rules. This is the rule we recommend for get_wmts_tile_url:
{
"version": "1",
"default": "deny",
"tools": {
"get_wmts_tile_url": {}
}
}get_wmts_tile_url is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Générer l. It is categorised as a Read tool in the French Open Data & IGN MCP Server, which means it retrieves data without modifying state.
Register the French Open Data & IGN MCP server in PolicyLayer and add a rule for get_wmts_tile_url: 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 French Open Data & IGN. Nothing to install.
get_wmts_tile_url 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_wmts_tile_url 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_wmts_tile_url. 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_wmts_tile_url is provided by the French Open Data & IGN MCP server (nikoko107/mcp-datagouv-ign). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from French Open Data & IGN, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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26 French Open Data & IGN tools catalogued and risk-classified — across an index of 43,000+ MCP servers.