This record as markdown: /tools/yanhuifair-godot-mcp/set-stylebox.md
What set_stylebox does on Godot
AI agents use set_stylebox 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 |
|---|---|---|---|
type | string | Yes | Control type (e.g. "Button") |
state | object | — | Style state (normal, hover, pressed, focus, disabled) |
bg_color | object | — | Background color (e.g. "Color(0.2, 0.2, 0.2, 1)") |
theme_path | string | Yes | Path to .tres Theme file |
border_color | object | — | Border color |
border_width | object | — | Border widths [left, right, top, bottom] |
corner_radius | object | — | Corner radii [top_left, top_right, bottom_right, bottom_left] |
content_margin | object | — | Content margins [left, right, top, bottom] |
Parameters from the server's own tool schema.
Why set_stylebox is rated Medium
Modifies theme styling configuration in Godot without destructive effects or execution context.
From the tool's definition Attach a StyleBoxFlat to a Theme type/state.
Attacks that exploit this kind of access
The rule that runs set_stylebox 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 set_stylebox, this is the rule to start with:
set_stylebox 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 set_stylebox call is checked against it from then on.
Questions about set_stylebox
Attach a StyleBoxFlat to a Theme type/state. 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.
set_stylebox accepts 8 parameters: type, state, bg_color, theme_path, border_color, border_width, corner_radius, content_margin. Required: type, theme_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 set_stylebox: 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.
set_stylebox 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 set_stylebox 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 set_stylebox. 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.
set_stylebox 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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