Liste toutes les déductions possibles du revenu imposable :
AI agents call lister_deductions_revenu 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 retrieves and presents information about tax deductions available under French law. It performs a read-only query operation that returns data without creating, modifying, deleting, or executing any changes to user data or external systems. No financial transactions, code execution, or irreversible actions are involved.
From the tool's definition Tool name 'lister_deductions_revenu' (list deductions) and description 'Liste toutes les déductions possibles' (lists all possible deductions) indicate a retrieval/query operation with no side effects.
Documented attack patterns abuse exactly the kind of access lister_deductions_revenu 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 lister_deductions_revenu:
{
"version": "1",
"default": "deny",
"tools": {
"lister_deductions_revenu": {}
}
}lister_deductions_revenu is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Liste toutes les déductions possibles du revenu imposable :. 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 lister_deductions_revenu: 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.
lister_deductions_revenu 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 lister_deductions_revenu 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 lister_deductions_revenu. 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.
lister_deductions_revenu 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.