List devices PreFormServer has discovered so far. Run discover_devices first to refresh.
AI agents call list_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 retrieves and lists information about discovered devices without creating, modifying, executing, or deleting anything. It is purely informational read access. The note to run `discover_devices` first indicates this is a passive listing of already-discovered state. Severity is low as listing devices poses minimal risk even if misused by an AI agent.
From the tool's definition Tool description states 'List devices PreFormServer has discovered so far' — a straightforward query/retrieval operation with no modification or execution of external operations.
Attacks that exploit this kind of access
List devices PreFormServer has discovered so far. Run discover_devices first to refresh. 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 list_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.
list_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 list_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 list_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.
list_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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