List all saved CNC macros.
AI agents call list_macros to retrieve information from Cnc Fluidnc without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about saved macros on the CNC device. It has no side effects, does not execute code, does not modify data, and does not delete anything. It is a straightforward read/query operation with minimal blast radius if misused by an AI agent—the worst outcome would be information disclosure about available macros.
From the tool's definition Tool name 'list_macros' and description 'List all saved CNC macros' indicate a query operation that retrieves and enumerates existing macro data without modification or execution.
Attacks that exploit this kind of access
List all saved CNC macros. It is categorised as a Read tool in the Cnc Fluidnc MCP Server, which means it retrieves data without modifying state.
Register the Cnc Fluidnc MCP server in PolicyLayer and add a rule for list_macros: 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 Cnc Fluidnc. Nothing to install.
list_macros 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_macros 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_macros. 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_macros is provided by the Cnc Fluidnc MCP server (whitneydesignlabs/cnc-fluidnc-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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