AI agents call annotate_snps 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 annotation data (gene names, functional consequences, allele frequencies) from external databases (Ensembl VEP and gnomAD). It is a read/query operation with no side effects, data modification, or destructive actions. Misuse potential is low as it only fetches reference biological data.
From the tool's definition Annotate SNPs with gene names, functional consequences, and allele frequencies from Ensembl VEP and gnomAD
Attacks that exploit this kind of access
Annotate SNPs with gene names, functional consequences, and allele frequencies from Ensembl VEP and gnomAD. 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 annotate_snps: 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.
annotate_snps 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 annotate_snps 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 annotate_snps. 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.
annotate_snps 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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