AI agents use create_dovetail to create or update resources in SketchupMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your SketchupMCP environment.
This tool creates new 3D geometry (a dovetail joint) within SketchUp, modifying the scene by adding or altering component geometry. It is a creative/constructive operation that can be reversed (components can be deleted or modified), placing it in the Write category. Severity is medium because misuse could corrupt or unintentionally alter 3D models, but no irreversible data loss or financial impact occurs.
From the tool's definition 'Create a dovetail joint between two components' — creates new geometry/joint between existing components
Documented attack patterns abuse exactly the kind of access create_dovetail 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 create_dovetail:
{
"version": "1",
"default": "deny",
"tools": {
"create_dovetail": {
"limits": [
{
"counter": "create_dovetail_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_dovetail stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Create a dovetail joint between two components. It is categorised as a Write tool in the SketchupMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sketchup MCP server in PolicyLayer and add a rule for create_dovetail: 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.
create_dovetail is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_dovetail 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 create_dovetail. 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.
create_dovetail 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.