Estime l'impot sur le revenu (IR) selon le bareme progressif 2025 (revenus 2024). Calcule le quotient familial, applique le plafonnement, la decote et la contribution exceptionnelle hauts revenus (CEHR). Parametres : revenu net imposable (obligatoire), nombre de parts OU situation familiale + nom...
Risk signalsHigh parameter count (10 properties)
Part of the Service Public France server.
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AI agents call simuler_impot_revenu to retrieve information from Service Public France without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though simuler_impot_revenu only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"simuler_impot_revenu": {}
}
}See the full Service Public France policy for all 38 tools.
These attack patterns abuse exactly the kind of access simuler_impot_revenu gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Estime l'impot sur le revenu (IR) selon le bareme progressif 2025 (revenus 2024). Calcule le quotient familial, applique le plafonnement, la decote et la contribution exceptionnelle hauts revenus (CEHR). Parametres : revenu net imposable (obligatoire), nombre de parts OU situation familiale + nombre d'enfants. Options : revenus fonciers (micro-foncier 30% abattement ou reel), revenus de capitaux (PFU 30% ou bareme), micro-BIC (abattement 50%), micro-BNC (abattement 34%).. It is categorised as a Read tool in the Service Public France MCP Server, which means it retrieves data without modifying state.
Register the Service Public France MCP server in PolicyLayer and add a rule for simuler_impot_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 Service Public France. Nothing to install.
simuler_impot_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 simuler_impot_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 simuler_impot_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.
simuler_impot_revenu is provided by the Service Public France MCP server (https://mcp-service-public.nhaultcoeur.workers.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 38 Service Public France tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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