create-partial-view · Mcp Dev MCP: Risk & Policy

WHAT IT DOES

What create-partial-view does on Mcp Dev

AI agents use create-partial-view to create or update resources in Mcp Dev — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Dev environment.

WHY IT NEEDS A POLICY

Why create-partial-view needs a policy

This tool creates a new partial view (a reusable template component in Umbraco CMS). While it modifies the system by adding new content, it is reversible—partial views can be edited, renamed, or deleted. The impact is write-level: it adds a new artifact without irreversibly destroying data or executing arbitrary code.

From the tool's definition Tool name 'create-partial-view' and description 'Creates a new partial view' indicate creation of new content/artifacts in the CMS system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create-partial-view Rate-limited

create-partial-view 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": {
    "create-partial-view": {
      "limits": [
        {
          "counter": "create-partial-view_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Dev, so you can run agents against it safely.

FAQ

Questions about create-partial-view

What does the create-partial-view tool do? +

Creates a new partial view. It is categorised as a Write tool in the Mcp Dev MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create-partial-view? +

Register the Mcp Dev MCP server in PolicyLayer and add a rule for create-partial-view: 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 Mcp Dev. Nothing to install.

What risk level is create-partial-view? +

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

Can I rate-limit create-partial-view? +

Yes. Add a rate_limit block to the create-partial-view 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 create-partial-view completely? +

Set action: deny in the PolicyLayer policy for create-partial-view. 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 create-partial-view? +

create-partial-view is provided by the Mcp Dev MCP server (@umbraco-cms/mcp-dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.