control_set_theme

Assign a Theme resource (res:// path) to a Control

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/control-set-theme.md

WHAT IT DOES

What control_set_theme does on Godot Breakpoint

AI agents use control_set_theme 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 control_set_theme is rated Medium

This tool modifies a Control node's theme property, which is a reversible change to the UI presentation layer. It does not delete data (not Destructive), execute arbitrary code (not Execute), involve financial operations (not Financial), or have side effects beyond the theme assignment itself. While it alters game state, the change is easily undoable by reassigning a different theme or the default.

From the tool's definition Tool assigns/modifies a Theme resource to a Control node. 'Assign' indicates modification of an existing node's property. The description shows theme_path parameter accepting res:// paths, indicating it writes/modifies UI styling configuration.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

control_set_theme Rate-limited

control_set_theme 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": {
    "control_set_theme": {
      "limits": [
        {
          "counter": "control_set_theme_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 control_set_theme call is checked against it from then on.

FAQ

Questions about control_set_theme

What does the control_set_theme tool do? +

Assign a Theme resource (res:// path) to a Control. 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 control_set_theme? +

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

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

Can I rate-limit control_set_theme? +

Yes. Add a rate_limit block to the control_set_theme 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 control_set_theme completely? +

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

control_set_theme 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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