protect_update_light
A write tool on the UniFi Access MCP server.
This record as markdown: /tools/io-github-sirkirby-unifi-access-mcp/protect-update-light.md
What protect_update_light does on UniFi Access MCP
AI agents use protect_update_light to create or update resources in UniFi Access MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your UniFi Access MCP environment.
Why protect_update_light is rated Medium
The tool name implies modifying the state or settings of a light (likely UniFi Protect smart lighting), which is a Write operation. However, the empty description significantly reduces confidence. It appears to be a misplaced UniFi Protect tool on a UniFi Access server, which further complicates classification.
From the tool's definition Tool name 'protect_update_light' suggests updating a light device (Write operation), but the description is empty and uninformative.
Attacks that exploit this kind of access
The rule that runs protect_update_light 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_update_light, this is the rule to start with:
protect_update_light stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. 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_update_light call is checked against it from then on.
Questions about protect_update_light
protect_update_light is a write tool on the UniFi Access MCP server. It is categorised as a Write tool in the UniFi Access MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the UniFi Access MCP server in PolicyLayer and add a rule for protect_update_light: 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_update_light is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the protect_update_light 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_update_light. 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_update_light 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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