get_ontology_ancestors_chart

Reconstruct the entire ancestry of a term from is_a and part_of relationships.

SERVEROrigeneMCP SOURCEgentel-lab/origenemcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/gentel-lab-origenemcp/get-ontology-ancestors-chart.md

WHAT IT DOES

What get_ontology_ancestors_chart does on OrigeneMCP

AI agents call get_ontology_ancestors_chart 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.

RISK

Why get_ontology_ancestors_chart is rated Low

This tool performs data retrieval by reconstructing hierarchical relationships within an ontology—a read-only operation with no side effects, no code execution, and no data modification. It queries existing relationships (is_a and part_of) to build a chart of ancestors. This is a classic Read category operation used for information gathering in biomedical research contexts.

From the tool's definition Tool name 'get_ontology_ancestors_chart' and description 'Reconstruct the entire ancestry of a term from is_a and part_of relationships' indicate a query operation that retrieves and traverses ontological data structures without modifying them.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_ontology_ancestors_chart 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_chart, this is the rule to start with:

get_ontology_ancestors_chart Allowed

get_ontology_ancestors_chart is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_ontology_ancestors_chart": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect OrigeneMCP, apply this rule, and every get_ontology_ancestors_chart call is checked against it from then on.

FAQ

Questions about get_ontology_ancestors_chart

What does the get_ontology_ancestors_chart tool do? +

Reconstruct the entire ancestry of a term from is_a and part_of relationships. It is categorised as a Read tool in the OrigeneMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_ontology_ancestors_chart? +

Register the Origene MCP server in PolicyLayer and add a rule for get_ontology_ancestors_chart: 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.

What risk level is get_ontology_ancestors_chart? +

get_ontology_ancestors_chart is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_ontology_ancestors_chart? +

Yes. Add a rate_limit block to the get_ontology_ancestors_chart 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.

How do I block get_ontology_ancestors_chart completely? +

Set action: deny in the PolicyLayer policy for get_ontology_ancestors_chart. 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.

What MCP server provides get_ontology_ancestors_chart? +

get_ontology_ancestors_chart 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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