create_mesh_primitive
Create 3D mesh resource: Box, Capsule, Cylinder, Plane, Sphere, Torus, etc. (11 types).
This record as markdown: /tools/yanhuifair-godot-mcp/create-mesh-primitive.md
What create_mesh_primitive does on Godot
AI agents use create_mesh_primitive to create or update resources in Godot, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
path | string | Yes | Output path for mesh .tres |
params | object | — | Override default size params |
mesh_type | string | Yes |
Parameters from the server's own tool schema.
Why create_mesh_primitive is rated Medium
This tool creates (writes) new mesh resources to the Godot engine. While creation operations are reversible (the mesh can be deleted), they do modify project state and are more intrusive than simple read operations. It does not execute arbitrary code, delete data irreversibly, or handle financial transactions.
From the tool's definition The tool 'create_mesh_primitive' creates a 3D mesh resource (Box, Capsule, Cylinder, Plane, Sphere, Torus, etc.), which is a persistent creation operation that modifies the Godot project state by adding new mesh assets.
Risk signalsAccepts file system path (path)
Attacks that exploit this kind of access
The rule that runs create_mesh_primitive safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Godot, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_mesh_primitive, this is the rule to start with:
create_mesh_primitive 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Godot, apply this rule, and every create_mesh_primitive call is checked against it from then on.
Questions about create_mesh_primitive
Create 3D mesh resource: Box, Capsule, Cylinder, Plane, Sphere, Torus, etc. (11 types). It is categorised as a Write tool in the Godot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
create_mesh_primitive accepts 3 parameters: path, params, mesh_type. Required: path, mesh_type. The full parameter table on this page comes from the server's own tool schema.
Register the Godot MCP server in PolicyLayer and add a rule for create_mesh_primitive: 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 Godot. Nothing to install.
create_mesh_primitive 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_mesh_primitive 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_mesh_primitive. 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_mesh_primitive is provided by the Godot MCP server (@yanhuifair/godot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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