Actively scan the local network for Formlabs printers.
AI agents call discover_devices to retrieve information from Formlabs Local without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs network scanning and device discovery, which is a read-only operation. It queries the local network to identify available Formlabs printers but does not create, modify, delete, or execute operations on any device or data.
From the tool's definition Tool description states 'Actively scan the local network for Formlabs printers' — a discovery/enumeration operation that retrieves information about devices without modifying them.
Attacks that exploit this kind of access
Actively scan the local network for Formlabs printers. It is categorised as a Read tool in the Formlabs Local MCP Server, which means it retrieves data without modifying state.
Register the Formlabs Local MCP server in PolicyLayer and add a rule for discover_devices: 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 Formlabs Local. Nothing to install.
discover_devices 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 discover_devices 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 discover_devices. 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.
discover_devices is provided by the Formlabs Local MCP server (mkebiclioglu/formlabs-local-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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