AI agents call get_substance_by_sid 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 retrieves substance chemical data from a public biomedical database (PubChem) without modifying, executing code, deleting data, or creating financial obligations. The operation is informational only. Misuse would result in information exposure rather than system damage or unauthorized actions, making it a low-severity read operation.
From the tool's definition Tool name 'get_substance_by_sid' and description 'Get substance information by PubChem SID' indicate a retrieval operation that queries the PubChem database for substance metadata.
Documented attack patterns abuse exactly the kind of access get_substance_by_sid 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_substance_by_sid:
{
"version": "1",
"default": "deny",
"tools": {
"get_substance_by_sid": {}
}
}get_substance_by_sid is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get substance information by PubChem SID. 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_substance_by_sid: 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_substance_by_sid 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_substance_by_sid 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_substance_by_sid. 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_substance_by_sid 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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439 OrigeneMCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.