totp_disable · Yaver MCP: Risk & Policy

WHAT IT DOES

What totp_disable does on Yaver

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

PARAMETERS

Parameter	Type	Required	Description
`code`	string	Yes	Current 6-digit TOTP code from the authenticator

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why totp_disable needs a policy

An AI agent can call totp_disable faster than any human can review — one bad instruction and it creates or modifies resources in Yaver by the hundred, each call as confident as the last.

Risk signalsAccepts freeform code/query input (code)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

totp_disable Rate-limited

totp_disable 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": {
    "totp_disable": {
      "limits": [
        {
          "counter": "totp_disable_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 Yaver, so you can run agents against it safely.

FAQ

Questions about totp_disable

What does the totp_disable tool do? +

Disable two-factor authentication. Requires a current 6-digit code from the authenticator (recovery codes are intentionally NOT accepted for disable, to stop an attacker with only leaked recovery codes from turning 2FA off). It is categorised as a Write tool in the Yaver MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does totp_disable accept? +

totp_disable accepts 1 parameter: code. Required: code. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on totp_disable? +

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

What risk level is totp_disable? +

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

Can I rate-limit totp_disable? +

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

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

totp_disable is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.