shadermaterial_create

Create a ShaderMaterial and assign it to a node

SERVERGodot Breakpoint SOURCEjlivingston-Cipher/godot-breakpoint-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/godot-breakpoint-mcp/shadermaterial-create.md

WHAT IT DOES

What shadermaterial_create does on Godot Breakpoint

AI agents use shadermaterial_create to create or update resources in Godot Breakpoint, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Godot Breakpoint environment.

RISK

Why shadermaterial_create is rated Medium

This tool creates a new shader material object and modifies node properties by assigning it, which are reversible write operations. It does not execute arbitrary code, delete data, or move resources. The medium severity reflects that misuse could alter scene appearance or introduce unintended visual effects, but changes remain reversible through reassignment or deletion.

From the tool's definition Tool description states 'Create a ShaderMaterial and assign it to a node' — the verb 'create' and 'assign' indicate data creation and modification within the Godot scene tree.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs shadermaterial_create safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Godot Breakpoint, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For shadermaterial_create, this is the rule to start with:

shadermaterial_create Rate-limited

shadermaterial_create 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "shadermaterial_create": {
      "limits": [
        {
          "counter": "shadermaterial_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Godot Breakpoint, apply this rule, and every shadermaterial_create call is checked against it from then on.

FAQ

Questions about shadermaterial_create

What does the shadermaterial_create tool do? +

Create a ShaderMaterial and assign it to a node. It is categorised as a Write tool in the Godot Breakpoint MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on shadermaterial_create? +

Register the Godot Breakpoint MCP server in PolicyLayer and add a rule for shadermaterial_create: 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 Breakpoint. Nothing to install.

What risk level is shadermaterial_create? +

shadermaterial_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit shadermaterial_create? +

Yes. Add a rate_limit block to the shadermaterial_create 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.

How do I block shadermaterial_create completely? +

Set action: deny in the PolicyLayer policy for shadermaterial_create. 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.

What MCP server provides shadermaterial_create? +

shadermaterial_create is provided by the Godot Breakpoint MCP server (jlivingston-Cipher/godot-breakpoint-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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