Get the bounding box (envelope) of a geometry.
AI agents call envelope to retrieve information from LocuSync Server 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 geometric metadata (the bounding box/minimum enclosing rectangle) of an input geometry. It is purely computational and read-only, with no capability to create, modify, delete, or execute external operations. The operation is deterministic and has no side effects, placing it firmly in the Read category with low severity.
From the tool's definition The tool 'envelope' performs a geometric operation that 'Get[s] the bounding box (envelope) of a geometry' — a retrieval operation with no modification or side effects on the input geometry or any persistent data.
Attacks that exploit this kind of access
Get the bounding box (envelope) of a geometry. It is categorised as a Read tool in the LocuSync Server MCP Server, which means it retrieves data without modifying state.
Register the LocuSync Server MCP server in PolicyLayer and add a rule for envelope: 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 LocuSync Server. Nothing to install.
envelope 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 envelope 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 envelope. 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.
envelope is provided by the LocuSync Server MCP server (matbel91765/gis-mcp-server). 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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