Fetch the uptime percentage and outage breakdown for a monitor over a window (default last 30 days).
AI agents call vs_monitors_uptime to retrieve information from Visual Sentinel MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical uptime statistics and outage information for a monitor over a specified time window. It has no side effects—it queries and returns data without creating, modifying, deleting, or triggering external actions. The blast radius of misuse is minimal; an attacker could only enumerate uptime metrics or access monitoring visibility, not compromise systems or data.
From the tool's definition Tool fetches uptime percentage and outage breakdown data without modifying, deleting, or executing operations. 'Fetch' and retrieval of historical monitoring metrics are read-only operations.
Attacks that exploit this kind of access
Fetch the uptime percentage and outage breakdown for a monitor over a window (default last 30 days). It is categorised as a Read tool in the Visual Sentinel MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Visual Sentinel MCP Server MCP server in PolicyLayer and add a rule for vs_monitors_uptime: 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 Visual Sentinel MCP Server. Nothing to install.
vs_monitors_uptime 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 vs_monitors_uptime 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 vs_monitors_uptime. 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.
vs_monitors_uptime is provided by the Visual Sentinel MCP Server MCP server (visualsentinel/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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