AI agents call simuler_pacte_dutreil 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 simulates or models tax scenarios related to the Dutreil Pact (a French tax framework for business succession). Simulation and calculation of tax scenarios are informational reads that retrieve or compute data without modifying any actual tax filings, financial accounts, or official records. It presents what-if scenarios to users. No side effects, no data modification, no execution of external operations.
From the tool's definition Tool name 'simuler_pacte_dutreil' and description 'Simule l' (incomplete but clearly indicates simulation/modeling). The tool is part of a French tax assistant server and performs calculation/simulation of the Dutreil Pact tax framework.
Documented attack patterns abuse exactly the kind of access simuler_pacte_dutreil 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_pacte_dutreil:
{
"version": "1",
"default": "deny",
"tools": {
"simuler_pacte_dutreil": {}
}
}simuler_pacte_dutreil is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Simule l. 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_pacte_dutreil: 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_pacte_dutreil 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_pacte_dutreil 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_pacte_dutreil. 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_pacte_dutreil 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.
Free to start. No card required.
62 Impots tools catalogued and risk-classified — across an index of 43,000+ MCP servers.