passkey_login_options · Run402 MCP: Risk & Policy

WHAT IT DOES

What passkey_login_options does on Run402

AI agents use passkey_login_options to create or update resources in Run402 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Run402 environment.

WHY IT NEEDS A POLICY

Why passkey_login_options needs a policy

This tool creates authentication credentials (WebAuthn passkey login options) for a project, which is a reversible data modification. It does not delete, execute arbitrary code, move money, or cause irreversible harm.

From the tool's definition Tool name is 'passkey_login_options' and description states it 'Create[s] WebAuthn passkey login options for a project app origin.' The verb 'create' directly indicates a Write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

passkey_login_options Rate-limited

passkey_login_options 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": {
    "passkey_login_options": {
      "limits": [
        {
          "counter": "passkey_login_options_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 Run402, so you can run agents against it safely.

FAQ

Questions about passkey_login_options

What does the passkey_login_options tool do? +

Create WebAuthn passkey login options for a project app origin. It is categorised as a Write tool in the Run402 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on passkey_login_options? +

Register the Run402 MCP server in PolicyLayer and add a rule for passkey_login_options: 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 Run402. Nothing to install.

What risk level is passkey_login_options? +

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

Can I rate-limit passkey_login_options? +

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

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

passkey_login_options is provided by the Run402 MCP server (kychee-com/run402). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.