AI agents use start_operator_passkey_enrollment 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.
This tool sends an enrollment email and initiates a passkey enrollment flow — a Write action that creates a new authentication credential linkage. It does not delete or execute code, but misuse could allow an attacker to enroll an unauthorized passkey, granting persistent operator-level access. Severity is medium-to-high due to the security implications of operator credential enrollment.
From the tool's definition Email a short-lived Run402 operator passkey enrollment link to the verified contact email
Attacks that exploit this kind of access
Email a short-lived Run402 operator passkey enrollment link to the verified contact email. Requires email_verified. 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.
Register the Run402 MCP server in PolicyLayer and add a rule for start_operator_passkey_enrollment: 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.
start_operator_passkey_enrollment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the start_operator_passkey_enrollment 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.
Set action: deny in the PolicyLayer policy for start_operator_passkey_enrollment. 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.
start_operator_passkey_enrollment 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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