Everything around a coordinate in one call: nearby airports, public K-12 schools, NOAA climate stations, and past-week earthquakes, each with distance and an independent found/error block. radiusKm default 25 (max 200), limit per category. Site assessment, relocation research, risk screening.
AI agents call geo.nearby to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward geospatial query tool that aggregates publicly available information around a coordinate. It has no side effects on data, does not execute arbitrary code, does not move money, and does not delete or modify anything. The only potential concern is information disclosure from coordinate queries, but this poses minimal risk and is inherent to any location lookup service.
From the tool's definition Tool retrieves and queries data about geographic locations: 'nearby airports, public K-12 schools, NOAA climate stations, and past-week earthquakes, each with distance'. Returns informational results with no modification or deletion of underlying data.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Everything around a coordinate in one call: nearby airports, public K-12 schools, NOAA climate stations, and past-week earthquakes, each with distance and an independent found/error block. radiusKm default 25 (max 200), limit per category. Site assessment, relocation research, risk screening. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for geo.nearby: 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 Mcp. Nothing to install.
geo.nearby 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 geo.nearby 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 geo.nearby. 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.
geo.nearby is provided by the MCP server (@2sio/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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