get_marketplace_app_variables
AI agents call get_marketplace_app_variables to retrieve information from Vultr MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix strongly suggests this tool retrieves marketplace application variables without modifying or executing anything. Even though the description is empty, the naming convention and context from sibling tools (primarily Read operations like 'analyze_' queries) support classification as a Read operation.
From the tool's definition Tool name 'get_marketplace_app_variables' uses the verb 'get', which indicates data retrieval. The sibling tools on this server include 'analyze_*' and 'get_*' patterns, all of which are Read operations. No description provided, but the pattern is consistent.
Documented attack patterns abuse exactly the kind of access get_marketplace_app_variables gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Vultr MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_marketplace_app_variables:
{
"version": "1",
"default": "deny",
"tools": {
"get_marketplace_app_variables": {}
}
}get_marketplace_app_variables is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_marketplace_app_variables. It is categorised as a Read tool in the Vultr MCP MCP Server, which means it retrieves data without modifying state.
Register the Vultr MCP server in PolicyLayer and add a rule for get_marketplace_app_variables: 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 Vultr MCP. Nothing to install.
get_marketplace_app_variables 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 get_marketplace_app_variables 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 get_marketplace_app_variables. 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.
get_marketplace_app_variables is provided by the Vultr MCP server (rsp2k/mcp-vultr). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Vultr MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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284 Vultr MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.