content_partial_update · Voog MCP: Risk & Policy

WHAT IT DOES

What content_partial_update does on Voog

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

WHY IT NEEDS A POLICY

Why content_partial_update needs a policy

This tool creates or modifies data reversibly without deleting it. The PUT operation updates a content partial, which is a standard write operation. Severity is medium because modifying template partials in a CMS could affect site appearance/functionality across multiple pages, but the change is reversible (can be updated again or reverted). Not Destructive since updates are not irreversible deletions.

From the tool's definition Tool description explicitly states 'Update a content partial (PUT /content_partials/{id})', which is a modification operation using the HTTP PUT method. The context (Voog CMS managing templates and content) confirms this modifies existing content reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

content_partial_update Rate-limited

content_partial_update 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": {
    "content_partial_update": {
      "limits": [
        {
          "counter": "content_partial_update_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 Voog, so you can run agents against it safely.

FAQ

Questions about content_partial_update

What does the content_partial_update tool do? +

Update a content partial (PUT /content_partials/{id}). It is categorised as a Write tool in the Voog MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on content_partial_update? +

Register the Voog MCP server in PolicyLayer and add a rule for content_partial_update: 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 Voog. Nothing to install.

What risk level is content_partial_update? +

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

Can I rate-limit content_partial_update? +

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

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

content_partial_update is provided by the Voog MCP server (runnel/voog-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.