Map cDNA coordinates to genomic coordinates
AI agents call map_cdna_to_region 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 genomic coordinate mapping lookup, analogous to a search or get operation. It transforms one coordinate system to another but does not create, modify, delete, or execute any code. The operation is purely informational retrieval from the Ensembl API, consistent with other sibling tools like 'get_sequence' and 'get_variants_for_region' that also retrieve genomic data.
From the tool's definition Tool name 'map_cdna_to_region' and description 'Map cDNA coordinates to genomic coordinates' indicate a coordinate transformation/lookup operation.
Attacks that exploit this kind of access
Map cDNA coordinates to genomic coordinates. 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 map_cdna_to_region: 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.
map_cdna_to_region 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 map_cdna_to_region 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 map_cdna_to_region. 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.
map_cdna_to_region 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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