AI agents call list_sellerhub_domains to retrieve information from Spaceship without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries a list of domains available for sale on a marketplace. It performs a read-only operation with no side effects, no data modification, no code execution, and no financial transactions. The blast radius of misuse is minimal — an agent could only retrieve information already publicly available on the marketplace.
From the tool's definition Tool name is 'list_sellerhub_domains' and description states 'List domains listed for sale on SellerHub' — the verb 'list' and action of retrieving/querying marketplace data with no modification capability.
Attacks that exploit this kind of access
List domains listed for sale on SellerHub, Spaceship. It is categorised as a Read tool in the Spaceship MCP Server, which means it retrieves data without modifying state.
Register the Spaceship MCP server in PolicyLayer and add a rule for list_sellerhub_domains: 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 Spaceship. Nothing to install.
list_sellerhub_domains 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 list_sellerhub_domains 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 list_sellerhub_domains. 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.
list_sellerhub_domains is provided by the Spaceship MCP server (naveenkm007/spaceship-mcp). 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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