actualizar_documento · Modular MCP Server MCP: Risk & Policy

WHAT IT DOES

What actualizar_documento does on Modular MCP Server

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

WHY IT NEEDS A POLICY

Why actualizar_documento needs a policy

The tool modifies existing MongoDB documents based on a filter. This is a reversible write operation — data can be overwritten but not permanently destroyed (unlike delete). Severity is medium because an AI agent could unintentionally overwrite many documents if the filter is too broad, but the operation is not irreversible by nature.

From the tool's definition "Modifica un documento existente" (Modifies an existing document using a filter)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

actualizar_documento Rate-limited

actualizar_documento 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": {
    "actualizar_documento": {
      "limits": [
        {
          "counter": "actualizar_documento_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 Modular MCP Server, so you can run agents against it safely.

FAQ

Questions about actualizar_documento

What does the actualizar_documento tool do? +

Modifica un documento existente usando un filtro. It is categorised as a Write tool in the Modular 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 actualizar_documento? +

Register the Modular MCP Server MCP server in PolicyLayer and add a rule for actualizar_documento: 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 Modular MCP Server. Nothing to install.

What risk level is actualizar_documento? +

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

Can I rate-limit actualizar_documento? +

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

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

actualizar_documento is provided by the Modular MCP Server MCP server (satanas66/tfm-mcp-062026). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.