Guide des dispositifs de défiscalisation solidaire et éthique : dons associations (75%/66%),
AI agents call guide_defiscalisation_solidaire 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 provides guidance and reference information about French tax incentive programs for charitable giving. It reads/queries tax knowledge to inform users, with no side effects, no code execution, no data modification, and no financial transactions. It is purely educational/advisory in nature, making it a Read category tool with low severity.
From the tool's definition Tool name includes 'guide' and description begins with 'Guide des dispositifs' — this is informational/educational content about tax deduction mechanisms for charitable donations.
Documented attack patterns abuse exactly the kind of access guide_defiscalisation_solidaire 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 guide_defiscalisation_solidaire:
{
"version": "1",
"default": "deny",
"tools": {
"guide_defiscalisation_solidaire": {}
}
}guide_defiscalisation_solidaire is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Guide des dispositifs de défiscalisation solidaire et éthique : dons associations (75%/66%),. 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 guide_defiscalisation_solidaire: 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.
guide_defiscalisation_solidaire 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 guide_defiscalisation_solidaire 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 guide_defiscalisation_solidaire. 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.
guide_defiscalisation_solidaire 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.