protect_list_viewers
A read tool on the UniFi Access MCP server.
This record as markdown: /tools/io-github-sirkirby-unifi-access-mcp/protect-list-viewers.md
What protect_list_viewers does on UniFi Access MCP
AI agents call protect_list_viewers to retrieve information from UniFi Access MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why protect_list_viewers is rated Low
Despite the empty description reducing confidence, the tool name strongly suggests a read operation that retrieves a list of viewers without side effects. The lack of verbs like 'delete', 'update', 'create', or 'execute' indicates no destructive, write, or execute capabilities. In the context of access control systems, listing viewers is a benign data retrieval operation.
From the tool's definition Tool name 'protect_list_viewers' indicates a listing/query operation that retrieves viewer information. The 'list' verb is characteristic of read operations that query data without modification.
Attacks that exploit this kind of access
The rule that runs protect_list_viewers safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UniFi Access MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For protect_list_viewers, this is the rule to start with:
protect_list_viewers is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UniFi Access MCP, apply this rule, and every protect_list_viewers call is checked against it from then on.
Questions about protect_list_viewers
protect_list_viewers is a read tool on the UniFi Access MCP server. It is categorised as a Read tool in the UniFi Access MCP MCP Server, which means it retrieves data without modifying state.
Register the UniFi Access MCP server in PolicyLayer and add a rule for protect_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 UniFi Access MCP. Nothing to install.
protect_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 protect_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 protect_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.
protect_list_viewers is provided by the UniFi Access MCP server (pypi:unifi-protect-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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