Retrieve French communes (municipalities) associated with a postal code. This tool queries the IGN API Carto codes-postaux module to find all communes that share a given postal code. In France, a postal code can cover multiple communes, and this tool returns all of them. Args: - code_postal (stri...
AI agents call ign_get_communes_by_postal_code to retrieve information from IGN API Carto MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward data retrieval operation that queries public geographic/administrative data and returns results. No data is created, modified, deleted, or executed. The postal code to commune mapping is publicly available information.
From the tool's definition Tool retrieves communes associated with a postal code via IGN API query; no modification, deletion, or execution capability. Description explicitly states 'Retrieve' and 'queries the IGN API' with no side effects.
Attacks that exploit this kind of access
Retrieve French communes (municipalities) associated with a postal code. This tool queries the IGN API Carto codes-postaux module to find all communes that share a given postal code. In France, a postal code can cover multiple communes, and this tool returns all of them. Args: - code_postal (string): French postal code (5 digits, e.g. It is categorised as a Read tool in the IGN API Carto MCP Server MCP Server, which means it retrieves data without modifying state.
Register the IGN API Carto MCP Server MCP server in PolicyLayer and add a rule for ign_get_communes_by_postal_code: 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 IGN API Carto MCP Server. Nothing to install.
ign_get_communes_by_postal_code 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 ign_get_communes_by_postal_code 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 ign_get_communes_by_postal_code. 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.
ign_get_communes_by_postal_code is provided by the IGN API Carto MCP Server MCP server (julienkalamon/ign-apicarto-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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