Liste tous les crédits d
AI agents call lister_credits_impot 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.
The tool queries and retrieves information about available tax credits. It is purely informational—it does not modify data, execute code, delete records, or perform financial transactions. While the description is truncated, the verb 'lister' (list) and context as a tax assistant tool clearly indicate read-only data retrieval.
From the tool's definition Tool name 'lister_credits_impot' (list tax credits) and description prefix 'Liste tous les crédits d' (Lists all tax credits...) indicate a listing/retrieval operation with no modification, deletion, or execution capabilities.
Documented attack patterns abuse exactly the kind of access lister_credits_impot 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_credits_impot:
{
"version": "1",
"default": "deny",
"tools": {
"lister_credits_impot": {}
}
}lister_credits_impot is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Liste tous les crédits d. 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_credits_impot: 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_credits_impot 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_credits_impot 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_credits_impot. 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_credits_impot 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.