assets_polyhaven_categories

THE RISK

Low Risk

Why assets_polyhaven_categories needs a policy

This tool retrieves and enumerates available asset categories from PolyHaven (a public 3D asset library) without modifying, executing operations, or deleting data. It is purely informational and safe to expose to an AI agent; misuse would only result in unnecessary API calls to list categories, causing no harm or data loss.

From the tool's definition Tool name 'assets_polyhaven_categories' and description 'List PolyHaven categories for an asset type' indicate a data retrieval operation. The verb 'List' and the function of returning available categories demonstrate a read-only query with no side effects.

Documented attack patterns abuse exactly the kind of access assets_polyhaven_categories gives an agent:

POLICY

How to control assets_polyhaven_categories

PolicyLayer is an MCP gateway — it sits between your AI agents and 8th Wall MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for assets_polyhaven_categories:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "assets_polyhaven_categories": {}
  }
}

assets_polyhaven_categories is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register 8th Wall MCP Server — nothing to install.
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EXPLORE

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FAQ

Questions about assets_polyhaven_categories

What does the assets_polyhaven_categories tool do? +

List PolyHaven categories for an asset type (hdris/textures/models/all). It is categorised as a Read tool in the 8th Wall MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on assets_polyhaven_categories? +

Register the 8th Wall MCP Server MCP server in PolicyLayer and add a rule for assets_polyhaven_categories: 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 8th Wall MCP Server. Nothing to install.

What risk level is assets_polyhaven_categories? +

assets_polyhaven_categories is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit assets_polyhaven_categories? +

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

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

assets_polyhaven_categories is provided by the 8th Wall MCP Server MCP server (superdwayne/8thwallmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every 8th Wall MCP Server tool call.

Start from 8th Wall MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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