Analyze usage coverage of a specific class or property, or get global stats. Args: - targetUri: (optional) URI of class or property to check Returns: - If targetUri provided: instance count and properties used - If no targetUri: top 50 types by instance count Examples: - No args: Global coverage ...
AI agents call check_coverage to retrieve information from Schema Gov It MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only tool that retrieves and analyzes existing data from the Italian government data catalog. It performs queries to gather usage statistics and coverage metrics, with no side effects. No data is created, modified, deleted, or executed. The tool fits the 'Read' category as it retrieves or queries data with no side effects.
From the tool's definition Tool description states 'Analyze usage coverage' and returns 'instance count and properties used' or 'top 50 types by instance count'. The examples show no parameters that modify data ('No args: Global coverage statistics').
Documented attack patterns abuse exactly the kind of access check_coverage gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Schema Gov It MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for check_coverage:
{
"version": "1",
"default": "deny",
"tools": {
"check_coverage": {}
}
}check_coverage is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Analyze usage coverage of a specific class or property, or get global stats. Args: - targetUri: (optional) URI of class or property to check Returns: - If targetUri provided: instance count and properties used - If no targetUri: top 50 types by instance count Examples: - No args: Global coverage statistics - targetUri=. It is categorised as a Read tool in the Schema Gov It MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Schema Gov It MCP Server MCP server in PolicyLayer and add a rule for check_coverage: 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 Schema Gov It MCP Server. Nothing to install.
check_coverage 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 check_coverage 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 check_coverage. 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.
check_coverage is provided by the Schema Gov It MCP Server MCP server (italia/dati-semantic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Schema Gov It MCP Server, 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.
47 Schema Gov It MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.