AI agents call query_ontology_type to retrieve information from Foundry MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
No side effects or modifications are implied by the name. Querying an ontology type is a retrieval operation that reads metadata or structure without creating, modifying, or deleting data. The empty description slightly reduces confidence, but the naming convention and context from sibling tools strongly suggest this is a Read operation.
From the tool's definition Tool name 'query_ontology_type' indicates a retrieval/query operation. Sibling tools include 'query_dataset' (clearly Read) and 'list_ontology_types' (clearly Read), suggesting this is part of a query/read-only interface.
Documented attack patterns abuse exactly the kind of access query_ontology_type gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Foundry MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for query_ontology_type:
{
"version": "1",
"default": "deny",
"tools": {
"query_ontology_type": {}
}
}query_ontology_type is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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query_ontology_type. It is categorised as a Read tool in the Foundry MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Foundry MCP Server MCP server in PolicyLayer and add a rule for query_ontology_type: 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 Foundry MCP Server. Nothing to install.
query_ontology_type 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 query_ontology_type 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 query_ontology_type. 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.
query_ontology_type is provided by the Foundry MCP Server MCP server (qwert666/mcp-server-foundry). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Foundry MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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5 Foundry MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.