Suggest transformation paths between two CRS. Covers Tokyo Datum to JGD2011, WGS84 to Plane Rectangular CS, etc. Searches multi-step paths, provides accuracy info, and warns about cumulative errors.
AI agents call suggest_transformation to retrieve information from Epsg without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns transformation metadata and recommendations between coordinate reference systems. It performs no write, execute, destructive, or financial operations. It is purely analytical and advisory—searching coordinate transformation databases and presenting results to help users understand conversion paths.
From the tool's definition The tool description emphasizes search and suggestion functionality: 'Suggest transformation paths', 'Searches multi-step paths', 'provides accuracy info'.
Attacks that exploit this kind of access
Suggest transformation paths between two CRS. Covers Tokyo Datum to JGD2011, WGS84 to Plane Rectangular CS, etc. Searches multi-step paths, provides accuracy info, and warns about cumulative errors. It is categorised as a Read tool in the Epsg MCP Server, which means it retrieves data without modifying state.
Register the Epsg MCP server in PolicyLayer and add a rule for suggest_transformation: 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 Epsg. Nothing to install.
suggest_transformation 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 suggest_transformation 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 suggest_transformation. 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.
suggest_transformation is provided by the Epsg MCP server (shuji-bonji/epsg-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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