Calculate the length/perimeter of a geometry.
AI agents call length 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 is a read-only operation that retrieves geometric measurements from input data. There are no write, destructive, financial, or code execution capabilities. The tool performs a deterministic calculation on geometry objects without modifying state or triggering external effects. Severity is low because misuse cannot corrupt data or cause harm.
From the tool's definition Tool 'length' calculates properties of a geometry (length/perimeter) without modifying, deleting, or executing external operations. The description explicitly states it 'Calculate[s] the length/perimeter' — a pure measurement operation with no side effects.
Attacks that exploit this kind of access
Calculate the length/perimeter 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 length: 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.
length 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 length 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 length. 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.
length 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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