Get phenotype annotations associated with a gene
AI agents call get_phenotype_by_gene to retrieve information from Ensembl MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple data lookup/query operation on the Ensembl genomics database. It retrieves existing phenotype information associated with a specified gene. There are no side effects, no data modification, no code execution, no irreversible operations, and no financial implications.
From the tool's definition Tool name 'get_phenotype_by_gene' and description 'Get phenotype annotations associated with a gene' indicate a read-only retrieval operation that queries phenotype data without modifying or deleting anything.
Attacks that exploit this kind of access
Get phenotype annotations associated with a gene. It is categorised as a Read tool in the Ensembl MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Ensembl MCP Server MCP server in PolicyLayer and add a rule for get_phenotype_by_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 Ensembl MCP Server. Nothing to install.
get_phenotype_by_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_phenotype_by_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_phenotype_by_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_phenotype_by_gene is provided by the Ensembl MCP Server MCP server (munch-group/ensembl-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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