AI agents call get_selection to retrieve information from SketchupMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the current state of selected components in Sketchup without modifying, deleting, or executing any operations. It is a straightforward data retrieval operation. The low severity reflects minimal risk even if misused by an AI agent, as reading selection state cannot cause damage or unwanted modifications to the model.
From the tool's definition Tool name 'get_selection' and description 'Get currently selected components' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get_selection gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SketchupMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_selection:
{
"version": "1",
"default": "deny",
"tools": {
"get_selection": {}
}
}get_selection is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get currently selected components. It is categorised as a Read tool in the SketchupMCP MCP Server, which means it retrieves data without modifying state.
Register the Sketchup MCP server in PolicyLayer and add a rule for get_selection: 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 SketchupMCP. Nothing to install.
get_selection 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 get_selection 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 get_selection. 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.
get_selection is provided by the Sketchup MCP server (mhyrr/sketchup-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from SketchupMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 SketchupMCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.