custom-provider-marketplace-app-update-capabilities

THE RISK

Medium Risk

Why custom-provider-marketplace-app-update-capabilities needs a policy

This tool modifies (toggles) capabilities/permissions for a marketplace app. 'Toggle' indicates switching settings on/off, which is reversible. While the action affects OAuth client configuration and could have downstream consequences if capabilities are disabled (potentially breaking integrations), it is not irreversible deletion (Destructive) nor does it directly move money (Financial).

From the tool's definition Tool name includes 'update' and description states 'Toggle capabilities for the marketplace app' — this modifies configuration/permissions for an OAuth client application, a reversible change that affects system behavior.

Documented attack patterns abuse exactly the kind of access custom-provider-marketplace-app-update-capabilities gives an agent:

POLICY

How to control custom-provider-marketplace-app-update-capabilities

PolicyLayer is an MCP gateway — it sits between your AI agents and GoHighLevel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for custom-provider-marketplace-app-update-capabilities:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "custom-provider-marketplace-app-update-capabilities": {
      "limits": [
        {
          "counter": "custom-provider-marketplace-app-update-capabilities_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

custom-provider-marketplace-app-update-capabilities 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.

Create a free account and register GoHighLevel MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about custom-provider-marketplace-app-update-capabilities

What does the custom-provider-marketplace-app-update-capabilities tool do? +

Toggle capabilities for the marketplace app tied to the OAuth client. It is categorised as a Write tool in the GoHighLevel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on custom-provider-marketplace-app-update-capabilities? +

Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for custom-provider-marketplace-app-update-capabilities: 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 GoHighLevel MCP Server. Nothing to install.

What risk level is custom-provider-marketplace-app-update-capabilities? +

custom-provider-marketplace-app-update-capabilities is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit custom-provider-marketplace-app-update-capabilities? +

Yes. Add a rate_limit block to the custom-provider-marketplace-app-update-capabilities 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 custom-provider-marketplace-app-update-capabilities completely? +

Set action: deny in the PolicyLayer policy for custom-provider-marketplace-app-update-capabilities. 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 custom-provider-marketplace-app-update-capabilities? +

custom-provider-marketplace-app-update-capabilities is provided by the GoHighLevel MCP Server MCP server (drausal/gohighlevel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GoHighLevel MCP Server tool call.

Start from GoHighLevel 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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