vercel_list_deployments
AI agents call vercel_list_deployments to retrieve information from Integrations MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool lists deployments, which is a read-only query operation that retrieves information about existing Vercel deployments. No modification, deletion, or execution occurs. The empty description reduces confidence slightly, but the naming convention strongly indicates a safe read operation. Blast radius is low as listing deployments reveals only metadata without triggering deployments or infrastructure changes.
From the tool's definition Tool name 'vercel_list_deployments' contains 'list', which is a retrieval operation. The verb 'list' indicates querying/enumerating existing deployments without modifying them.
Attacks that exploit this kind of access
vercel_list_deployments. It is categorised as a Read tool in the Integrations MCP MCP Server, which means it retrieves data without modifying state.
Register the Integrations MCP server in PolicyLayer and add a rule for vercel_list_deployments: 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 Integrations MCP. Nothing to install.
vercel_list_deployments 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 vercel_list_deployments 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 vercel_list_deployments. 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.
vercel_list_deployments is provided by the Integrations MCP server (shriram-vasudevan/integrations-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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