Get detailed information about a gene including constraint scores
AI agents call get_gene to retrieve information from gnomAD MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pre-existing gene information and constraint scores from the gnomAD database. It has no side effects—no data is created, modified, deleted, or executed. The operation is read-only and returns informational data about genetic constraints, which is a standard query pattern. Even if misused by an AI agent, the worst outcome is access to public genetic reference data, presenting minimal risk.
From the tool's definition Tool name 'get_gene' and description 'Get detailed information about a gene including constraint scores' indicate a query operation that retrieves genetic data without modifying it.
Documented attack patterns abuse exactly the kind of access get_gene gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and gnomAD MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_gene:
{
"version": "1",
"default": "deny",
"tools": {
"get_gene": {}
}
}get_gene is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get detailed information about a gene including constraint scores. It is categorised as a Read tool in the gnomAD MCP Server MCP Server, which means it retrieves data without modifying state.
Register the gnomAD MCP Server MCP server in PolicyLayer and add a rule for get_gene: 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 gnomAD MCP Server. Nothing to install.
get_gene 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_gene 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_gene. 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_gene is provided by the gnomAD MCP Server MCP server (shukwong/gnomad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from gnomAD MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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9 gnomAD MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.