picnic_generate_2fa_code

THE RISK

Low Risk

Why picnic_generate_2fa_code needs a policy

Generating a 2FA code is an authentication helper action — it produces a one-time code for identity verification. It does not read user data, write/modify records, execute commands, destroy data, or move money. It is a transient credential-generation step in an authentication flow, placing it in 'Other'.

From the tool's definition Generate a 2FA code for verification

Documented attack patterns abuse exactly the kind of access picnic_generate_2fa_code gives an agent:

POLICY

How to control picnic_generate_2fa_code

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Picnic, and nothing reaches the server without passing your rules. This is the rule we recommend for picnic_generate_2fa_code:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "picnic_generate_2fa_code": {
      "limits": [
        {
          "counter": "picnic_generate_2fa_code_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

picnic_generate_2fa_code gets a rate cap, and everything else on the server is denied unless you say otherwise.

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

SET A RULE FOR THIS TOOL →

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EXPLORE

Related tools and policies

More MCP Picnic tools

Destructive picnic_cancel_delivery Cancel a delivery order Destructive picnic_clear_cart Clear all items from the shopping cart Execute picnic_verify_2fa_code Verify a 2FA code Write picnic_remove_from_cart Remove a product from the shopping cart Write picnic_rate_delivery Rate a completed delivery Write picnic_add_to_cart Add a product to the shopping cart Write picnic_send_delivery_invoice_email Send or resend the invoice email for a completed delivery Write picnic_set_delivery_slot Select a delivery time slot

All 25 MCP Picnic tools →

Other tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about picnic_generate_2fa_code

What does the picnic_generate_2fa_code tool do? +

Generate a 2FA code for verification. It is categorised as a Other tool in the MCP Picnic MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on picnic_generate_2fa_code? +

Register the MCP Picnic MCP server in PolicyLayer and add a rule for picnic_generate_2fa_code: 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 Picnic. Nothing to install.

What risk level is picnic_generate_2fa_code? +

picnic_generate_2fa_code is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit picnic_generate_2fa_code? +

Yes. Add a rate_limit block to the picnic_generate_2fa_code 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 picnic_generate_2fa_code completely? +

Set action: deny in the PolicyLayer policy for picnic_generate_2fa_code. 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 picnic_generate_2fa_code? +

picnic_generate_2fa_code is provided by the MCP Picnic MCP server (ivo-toby/mcp-picnic). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Picnic tool call.

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

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