AI agents call get_eqtl_data to retrieve information from Gwas without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pre-computed eQTL data from the GTEx database based on SNP and tissue parameters. The verb 'Get' and the lack of any modification, deletion, or execution language confirm this is a read-only query operation. The tool simply fetches existing biological data without altering, creating, or executing anything.
From the tool's definition Tool name 'get_eqtl_data' and description 'Get expression quantitative trait loci (eQTL) data from GTEx for a SNP and tissue' indicate data retrieval with no side effects.
Attacks that exploit this kind of access
Get expression quantitative trait loci (eQTL) data from GTEx for a SNP and tissue. It is categorised as a Read tool in the Gwas MCP Server, which means it retrieves data without modifying state.
Register the Gwas MCP server in PolicyLayer and add a rule for get_eqtl_data: 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 Gwas. Nothing to install.
get_eqtl_data 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_eqtl_data 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_eqtl_data. 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_eqtl_data is provided by the Gwas MCP server (muslus/gwas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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