shadermaterial_set_param

Set a shader uniform parameter on the ShaderMaterial of 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-set-param.md

WHAT IT DOES

What shadermaterial_set_param does on Godot Breakpoint

AI agents use shadermaterial_set_param 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_set_param is rated Medium

This tool modifies shader uniform parameters on a node's material, which is a reversible change to visual/rendering properties. It is not destructive (parameters can be reset), does not execute arbitrary code, and does not access sensitive data or finances.

From the tool's definition Tool name 'shadermaterial_set_param' and description 'Set a shader uniform parameter on the ShaderMaterial of a node' indicate modification of shader material properties through parameter assignment.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs shadermaterial_set_param 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_set_param, this is the rule to start with:

shadermaterial_set_param Rate-limited

shadermaterial_set_param 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_set_param": {
      "limits": [
        {
          "counter": "shadermaterial_set_param_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_set_param call is checked against it from then on.

FAQ

Questions about shadermaterial_set_param

What does the shadermaterial_set_param tool do? +

Set a shader uniform parameter on the ShaderMaterial of 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_set_param? +

Register the Godot Breakpoint MCP server in PolicyLayer and add a rule for shadermaterial_set_param: 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_set_param? +

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

Can I rate-limit shadermaterial_set_param? +

Yes. Add a rate_limit block to the shadermaterial_set_param 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_set_param completely? +

Set action: deny in the PolicyLayer policy for shadermaterial_set_param. 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_set_param? +

shadermaterial_set_param 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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