Guide pour corriger une déclaration fiscale : déclaration rectificative (avant 15 déc.),
AI agents call guide_revision_declaration 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 instructional information about tax correction procedures. It does not modify, delete, execute code, or transfer funds. It is purely informational/educational in nature—guiding users through the process of understanding how to file an amended declaration. No data is created, modified, or destroyed.
From the tool's definition The tool is described as 'Guide pour corriger une déclaration fiscale' (Guide for correcting a tax declaration) with mention of 'déclaration rectificative' (amended declaration).
Documented attack patterns abuse exactly the kind of access guide_revision_declaration 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_revision_declaration:
{
"version": "1",
"default": "deny",
"tools": {
"guide_revision_declaration": {}
}
}guide_revision_declaration is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Guide pour corriger une déclaration fiscale : déclaration rectificative (avant 15 déc.),. 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_revision_declaration: 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_revision_declaration 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_revision_declaration 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_revision_declaration. 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_revision_declaration 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.