List viewers
AI agents call unifi_list_viewers to retrieve information from Garza Home MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries information (list) without creating, modifying, deleting, or executing any actions. It falls squarely within the Read category. Severity is low because listing viewers is informational only—misuse would expose visibility information but cannot directly harm devices or systems. High confidence due to the explicit 'list' verb and passive data retrieval nature.
From the tool's definition Tool name 'unifi_list_viewers' and description 'List viewers' indicate a query operation that retrieves data about who is viewing or has access to UniFi resources, with no modification or side effects.
Attacks that exploit this kind of access
List viewers. It is categorised as a Read tool in the Garza Home MCP MCP Server, which means it retrieves data without modifying state.
Register the Garza Home MCP server in PolicyLayer and add a rule for unifi_list_viewers: 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 Garza Home MCP. Nothing to install.
unifi_list_viewers 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 unifi_list_viewers 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 unifi_list_viewers. 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.
unifi_list_viewers is provided by the Garza Home MCP server (itsablabla/garza-home-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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