Fetch the preview document for a project transfer of any pending kind (v1.93+). Returns the safe review payload: project name, custom domains, subdomains, function names, secret NAMES (values are never returned), CI bindings that will be revoked at completion, mailbox summary, billing implication...
AI agents call preview_project_transfer to retrieve information from Run402 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves a read-only preview/summary of a pending transfer. It explicitly states values are never returned and it uses a GET endpoint with no side effects. It does not initiate, approve, or complete the transfer.
From the tool's definition Fetch the preview document...Returns the safe review payload...secret NAMES (values are never returned)...Calls GET /agent/v1/transfers/:transfer_id
Attacks that exploit this kind of access
Fetch the preview document for a project transfer of any pending kind (v1.93+). Returns the safe review payload: project name, custom domains, subdomains, function names, secret NAMES (values are never returned), CI bindings that will be revoked at completion, mailbox summary, billing implications, and — on email transfers — the retain_collaborator offer. Caller must be a party to the transfer. Calls GET /agent/v1/transfers/:transfer_id. It is categorised as a Read tool in the Run402 MCP Server, which means it retrieves data without modifying state.
Register the Run402 MCP server in PolicyLayer and add a rule for preview_project_transfer: 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.
preview_project_transfer is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the preview_project_transfer 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 preview_project_transfer. 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.
preview_project_transfer 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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