AI agents call logdrain_list to retrieve information from Vercel MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a simple data retrieval operation that queries existing log drain configurations. It does not modify, delete, execute, or create any resources. The blast radius of misuse is minimal—an attacker could only view log drain information, which may have some informational value but poses no direct harm to systems or data integrity.
From the tool's definition Tool name is 'logdrain_list' and description states it 'Retrieves a list of all log drains' - the verb 'Retrieves' combined with 'list' indicates a read-only query operation with no side effects.
Documented attack patterns abuse exactly the kind of access logdrain_list 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 logdrain_list:
{
"version": "1",
"default": "deny",
"tools": {
"logdrain_list": {}
}
}logdrain_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieves a list of all log drains. It is categorised as a Read tool in the Vercel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Vercel MCP Server MCP server in PolicyLayer and add a rule for logdrain_list: 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.
logdrain_list 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 logdrain_list 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 logdrain_list. 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.
logdrain_list 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.