Calcule les droits de donation selon le lien de parenté.
AI agents call simuler_droits_donation to retrieve information from Impots without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs tax calculations and simulations—it analyzes and retrieves information about donation tax rates and obligations based on provided parameters (family relationship). It does not create, modify, delete, or execute external operations; it simply computes and returns informational results. This is characteristic of a Read operation.
From the tool's definition Tool name 'simuler_droits_donation' and description 'Calcule les droits de donation selon le lien de parenté' indicate calculation and simulation of tax obligations based on inputs (kinship relationship), with no modification of actual tax records, financial…
Documented attack patterns abuse exactly the kind of access simuler_droits_donation gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Impots, and nothing reaches the server without passing your rules. This is the rule we recommend for simuler_droits_donation:
{
"version": "1",
"default": "deny",
"tools": {
"simuler_droits_donation": {}
}
}simuler_droits_donation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Calcule les droits de donation selon le lien de parenté. It is categorised as a Read tool in the Impots MCP Server, which means it retrieves data without modifying state.
Register the Impots MCP server in PolicyLayer and add a rule for simuler_droits_donation: 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 Impots. Nothing to install.
simuler_droits_donation 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 simuler_droits_donation 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 simuler_droits_donation. 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.
simuler_droits_donation is provided by the Impots MCP server (w4zu/impots-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Impots, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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62 Impots tools catalogued and risk-classified — across an index of 43,000+ MCP servers.