Récupérer des données vectorielles WFS (GeoJSON)
AI agents call get_wfs_features 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 vector geographic data in GeoJSON format from WFS services. It queries public French geographic/administrative data sources but does not create, modify, delete, or execute operations. The blast radius of misuse is minimal—an AI agent could retrieve public data it shouldn't access, but no side effects occur. Classified as Read with low severity.
From the tool's definition Tool name 'get_wfs_features' and description 'Récupérer des données vectorielles WFS (GeoJSON)' [Retrieve WFS vector data (GeoJSON)] indicate data retrieval only.
Documented attack patterns abuse exactly the kind of access get_wfs_features 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_wfs_features:
{
"version": "1",
"default": "deny",
"tools": {
"get_wfs_features": {}
}
}get_wfs_features is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Récupérer des données vectorielles WFS (GeoJSON). 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_wfs_features: 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_wfs_features 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_wfs_features 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_wfs_features. 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_wfs_features 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.
Free to start. No card required.
26 French Open Data & IGN tools catalogued and risk-classified — across an index of 43,000+ MCP servers.