AI agents use import_marketplace_resource to create or update resources in Vercel MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Vercel MCP Server environment.
Importing a marketplace resource creates or integrates new external resources into the Vercel project, which constitutes data modification (Write category). The severity is medium because while it modifies project state, the operation is reversible and the blast radius is limited to project configuration—it doesn't execute arbitrary code, delete data, or move money.
From the tool's definition Tool name 'import_marketplace_resource' and description 'Import a marketplace resource' indicate creation or addition of a resource to the Vercel project. This is a modification operation that adds external marketplace resources to the project configuration.
Documented attack patterns abuse exactly the kind of access import_marketplace_resource gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Vercel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for import_marketplace_resource:
{
"version": "1",
"default": "deny",
"tools": {
"import_marketplace_resource": {
"limits": [
{
"counter": "import_marketplace_resource_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}import_marketplace_resource 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.
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Import a marketplace resource. It is categorised as a Write tool in the Vercel MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Vercel MCP Server MCP server in PolicyLayer and add a rule for import_marketplace_resource: 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 Vercel MCP Server. Nothing to install.
import_marketplace_resource 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 import_marketplace_resource 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 import_marketplace_resource. 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.
import_marketplace_resource is provided by the Vercel MCP Server MCP server (quegenx/vercel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 154 Vercel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
154 Vercel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.