asset_gen_model
Generate a 3D mesh from a prompt and import it at a res:// path (a BoxMesh/primitive for the placeholder backend).
This record as markdown: /tools/godot-breakpoint-mcp/asset-gen-model.md
What asset_gen_model does on Godot Breakpoint
AI agents use asset_gen_model 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.
Why asset_gen_model is rated Medium
This tool creates new data (3D mesh assets) and writes them to the project filesystem at a specified path. This is a Write operation because it creates or modifies assets reversibly—meshes can be deleted or replaced. It is not Execute because it does not run arbitrary code or trigger user-specified external operations; the mesh generation itself is deterministic from the prompt.
From the tool's definition Tool description states it will 'Generate a 3D mesh from a prompt and import it at a res:// path', indicating creation and modification of project assets within the Godot resource directory.
Attacks that exploit this kind of access
The rule that runs asset_gen_model 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 asset_gen_model, this is the rule to start with:
asset_gen_model 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 Breakpoint, apply this rule, and every asset_gen_model call is checked against it from then on.
Questions about asset_gen_model
Generate a 3D mesh from a prompt and import it at a res:// path (a BoxMesh/primitive for the placeholder backend). 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.
Register the Godot Breakpoint MCP server in PolicyLayer and add a rule for asset_gen_model: 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.
asset_gen_model 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 asset_gen_model 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 asset_gen_model. 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.
asset_gen_model 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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