AI agents call get_substances_source_id 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.
Given the tool name implies fetching or retrieving substance identifiers (a read operation) and operates within a biomedical research platform focused on information retrieval, the primary risk is unauthorized access to potentially sensitive biomedical data. No destructive, execute, write, or financial operations are indicated.
From the tool's definition Tool name 'get_substances_source_id' suggests retrieval of substance identifiers from a source database. The description is empty, limiting direct confirmation, but the 'get_' prefix and naming pattern align with retrieval operations.
Documented attack patterns abuse exactly the kind of access get_substances_source_id 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_substances_source_id:
{
"version": "1",
"default": "deny",
"tools": {
"get_substances_source_id": {}
}
}get_substances_source_id is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_substances_source_id. 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_substances_source_id: 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_substances_source_id 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_substances_source_id 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_substances_source_id. 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_substances_source_id 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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