AI agents call gene_summary to retrieve information from Sniff Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves genomic variant data from the Sniff Atlas indexed by gene symbol, presenting results in ranked and paginated format. It has no side effects—it only fetches and displays existing data. The pagination control (limit parameter) is a read-only operation. No write, execute, destructive, or financial impact is possible.
From the tool's definition Tool description states it retrieves 'Variants in a gene... ranked by impact then ESM2 damage' with pagination parameters. Keywords 'ranked', 'paginated' indicate data retrieval only. No mutation, deletion, execution, or financial operations mentioned.
Attacks that exploit this kind of access
Variants in a gene (by gene symbol), ranked by impact then ESM2 damage. Paginated (limit, default 25);. It is categorised as a Read tool in the Sniff Mcp MCP Server, which means it retrieves data without modifying state.
Register the Sniff MCP server in PolicyLayer and add a rule for gene_summary: 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 Sniff Mcp. Nothing to install.
gene_summary 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 gene_summary 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 gene_summary. 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.
gene_summary is provided by the Sniff MCP server (https://mcp.sniff.world/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
gene_summary is one line of Sniff's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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