AI agents use create_physics_material 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 (e.g. "physics/ice.tres") |
rough | object | — | Rough surface |
absorb | object | — | Absorbent mode |
bounce | object | — | Bounciness (0=none, 1=perfect) |
friction | object | — | Friction coefficient (0=ice, 1=rubber) |
Parameters from the server's own tool schema.
This tool creates a new reversible asset within the Godot Engine project. While creation is a modification, it is not destructive—the material can be deleted or replaced. The severity is medium because misconfiguration of physics materials could cause game behavior issues, but the action itself is straightforward and reversible.
From the tool's definition Tool name is 'create_physics_material' and description states 'Create PhysicsMaterial.' The verb 'create' indicates the tool adds new data (a physics material asset) to the Godot project.
Risk signalsAccepts file system path (path)
Attacks that exploit this kind of access
Create PhysicsMaterial. 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_physics_material accepts 5 parameters: path, rough, absorb, bounce, friction. Required: path. 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_physics_material: 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_physics_material 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_physics_material 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_physics_material. 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_physics_material 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.
create_physics_material is one line of Godot's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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