AI agents call get_synonyms to retrieve information from OrigeneMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries a biomedical database to retrieve synonym information for chemical compounds. It performs a read-only lookup operation with no side effects, state changes, or irreversible actions. The data retrieved is informational and does not alter any system state or trigger external operations.
From the tool's definition Tool name 'get_synonyms' and description 'Get the synonyms of a compound' indicate a simple data retrieval operation with no modification, deletion, or execution of external commands.
Documented attack patterns abuse exactly the kind of access get_synonyms gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OrigeneMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_synonyms:
{
"version": "1",
"default": "deny",
"tools": {
"get_synonyms": {}
}
}get_synonyms is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the synonyms of a compound. 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_synonyms: 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_synonyms 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_synonyms 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_synonyms. 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_synonyms 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.
Start from OrigeneMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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