get_ontology_ancestors
A read tool on the Origene MCP server.
This record as markdown: /tools/gentel-lab-origenemcp/get-ontology-ancestors.md
What get_ontology_ancestors does on OrigeneMCP
AI agents call get_ontology_ancestors to retrieve information from OrigeneMCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_ontology_ancestors is rated Low
The tool appears to query and return ontology hierarchy data without modifying, deleting, or executing external operations. While the empty description reduces confidence slightly, the semantic context of 'get_' prefix and placement among read-only biomedical query tools suggests this retrieves (rather than modifies) ontological relationships. No evidence of side effects, code execution, or data mutation.
From the tool's definition Tool name 'get_ontology_ancestors' indicates a retrieval operation (fetch ancestors from an ontology structure).
Attacks that exploit this kind of access
The rule that runs get_ontology_ancestors safely
PolicyLayer is an MCP gateway: it sits between your AI agents and OrigeneMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_ontology_ancestors, this is the rule to start with:
get_ontology_ancestors is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect OrigeneMCP, apply this rule, and every get_ontology_ancestors call is checked against it from then on.
Questions about get_ontology_ancestors
get_ontology_ancestors is a read tool on the Origene MCP server. It is categorised as a Read tool in the OrigeneMCP MCP Server, which means it retrieves data without modifying state.
Register the Origene MCP server in PolicyLayer and add a rule for get_ontology_ancestors: 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 OrigeneMCP. Nothing to install.
get_ontology_ancestors 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 get_ontology_ancestors 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 get_ontology_ancestors. 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.
get_ontology_ancestors is provided by the Origene MCP server (gentel-lab/origenemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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