signature_electronic_create

THE RISK

Medium Risk

Why signature_electronic_create needs a policy

This tool creates a new electronic signature envelope, which is a reversible write operation (the envelope can be voided or cancelled). It does not execute code, delete data, or directly move money. Severity is medium because misuse could create fraudulent or unauthorized signature requests with legal implications, but the action itself is a data creation operation.

From the tool's definition Create a GoCertta electronic signature envelope — POST /v1/signature/electronic/envelopes

Documented attack patterns abuse exactly the kind of access signature_electronic_create gives an agent:

POLICY

How to control signature_electronic_create

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Afip, and nothing reaches the server without passing your rules. This is the rule we recommend for signature_electronic_create:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "signature_electronic_create": {
      "limits": [
        {
          "counter": "signature_electronic_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

signature_electronic_create 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.

Create a free account and register Mcp Afip — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about signature_electronic_create

What does the signature_electronic_create tool do? +

Create a GoCertta electronic signature envelope (e-signature without ICP-Brasil cert — lower legal weight, faster UX). POST /v1/signature/electronic/envelopes. It is categorised as a Write tool in the Mcp Afip MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on signature_electronic_create? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for signature_electronic_create: 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 Afip. Nothing to install.

What risk level is signature_electronic_create? +

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

Can I rate-limit signature_electronic_create? +

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

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

signature_electronic_create is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Afip tool call.

Start from Mcp Afip, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →