agregarRestriccionUnica · MyPos MCP: Risk & Policy

WHAT IT DOES

What agregarRestriccionUnica does on MyPos MCP

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

WHY IT NEEDS A POLICY

Why agregarRestriccionUnica needs a policy

Adding a UNIQUE constraint modifies the database schema reversibly (it can be dropped later, as evidenced by the sibling tool 'eliminarRestriccionUnica'). This is a schema Write operation. The description is largely uninformative (just rule-following instructions with no detail), but the name clearly indicates a DDL ALTER TABLE ADD UNIQUE CONSTRAINT operation.

From the tool's definition Tool name 'agregarRestriccionUnica' translates to 'addUniqueConstraint' — adds a UNIQUE constraint to a database table.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

agregarRestriccionUnica Rate-limited

agregarRestriccionUnica 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": {
    "agregarRestriccionUnica": {
      "limits": [
        {
          "counter": "agregarrestriccionunica_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 MyPos MCP, so you can run agents against it safely.

FAQ

Questions about agregarRestriccionUnica

What does the agregarRestriccionUnica tool do? +

Sigue estas reglas para agregar una restricción UNIQUE:\n. It is categorised as a Write tool in the MyPos MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on agregarRestriccionUnica? +

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

What risk level is agregarRestriccionUnica? +

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

Can I rate-limit agregarRestriccionUnica? +

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

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

agregarRestriccionUnica is provided by the MyPos MCP server (yonsn76/mypos-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.