convert_3414_to_3857
AI agents call convert_3414_to_3857 to retrieve information from OneMap MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Coordinate conversions are pure mathematical transformations that read/transform input data without any side effects. The description is empty, but the naming pattern strongly matches the sibling conversion tools on this server, all of which are read-only operations. Confidence is slightly reduced due to the empty description.
From the tool's definition Tool name 'convert_3414_to_3857' suggests a coordinate system conversion (SVY21/EPSG:3414 to Web Mercator/EPSG:3857), consistent with sibling tools like convert_3857_to_3414, convert_4326_to_3857, etc.
Attacks that exploit this kind of access
convert_3414_to_3857. It is categorised as a Read tool in the OneMap MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OneMap MCP Server MCP server in PolicyLayer and add a rule for convert_3414_to_3857: 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 OneMap MCP Server. Nothing to install.
convert_3414_to_3857 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 convert_3414_to_3857 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 convert_3414_to_3857. 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.
convert_3414_to_3857 is provided by the OneMap MCP Server MCP server (linzele/mcp-onemap). 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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