AI agents use create_shape to create or update resources in Metashape MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Metashape MCP Server environment.
The tool name 'create_shape' suggests creating geometric/spatial data within a 3D model project. In Metashape, shapes are vector data objects that can be created, modified, and saved. This is a Write operation (creates new data reversibly). Severity is medium because shapes can be edited or deleted, and the impact is contained within the project file.
From the tool's definition Tool name 'create_shape' combined with server context of Metashape (3D modeling software) indicates data creation. Description is empty, limiting specificity.
Documented attack patterns abuse exactly the kind of access create_shape gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Metashape MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_shape:
{
"version": "1",
"default": "deny",
"tools": {
"create_shape": {
"limits": [
{
"counter": "create_shape_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_shape 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_shape. It is categorised as a Write tool in the Metashape MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Metashape MCP Server MCP server in PolicyLayer and add a rule for create_shape: 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 Metashape MCP Server. Nothing to install.
create_shape 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_shape 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_shape. 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_shape is provided by the Metashape MCP Server MCP server (jenkinsm13/metashape-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Metashape MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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112 Metashape MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.