crudTabla · MyPos MCP: Risk & Policy

WHAT IT DOES

What crudTabla does on MyPos MCP

AI agents invoke crudTabla to trigger actions in MyPos MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why crudTabla needs a policy

CRUD encompasses all four database operations including destructive ones (Delete). Since the tool spans multiple categories, the most severe applicable category is chosen. The description is largely uninformative ('Sigue estas reglas OBLIGATORIAS para operaciones CRUD'), but the name and context strongly suggest it can perform irreversible deletions.

From the tool's definition Tool name 'crudTabla' implies Create, Read, Update, Delete operations on a table; server description mentions MySQL/PostgreSQL database access; sibling tools include destructive operations like 'eliminarColumna', 'eliminarClaveForanea'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

crudTabla Rate-limited

crudTabla stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "crudTabla": {
      "limits": [
        {
          "counter": "crudtabla_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 crudTabla

What does the crudTabla tool do? +

Sigue estas reglas OBLIGATORIAS para operaciones CRUD:\n. It is categorised as a Execute tool in the MyPos MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on crudTabla? +

Register the MyPos MCP server in PolicyLayer and add a rule for crudTabla: 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 crudTabla? +

crudTabla is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit crudTabla? +

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

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

crudTabla 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.