AI agents call bridge_info to retrieve information from HueMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves static configuration and identity information about the Philips Hue bridge with no side effects. It is a pure read operation. Severity is low because exposure of bridge metadata poses minimal security risk in isolation — an attacker gains only basic device information without the ability to control lights, modify configuration, or access sensitive credentials.
From the tool's definition Tool description states it 'Return[s] basic bridge identity' — name, id, software version, time-zone are all informational metadata. No modifications, deletions, or execution of commands occur.
Attacks that exploit this kind of access
Return basic bridge identity (name, id, software version, time-zone). It is categorised as a Read tool in the HueMCP MCP Server, which means it retrieves data without modifying state.
Register the Hue MCP server in PolicyLayer and add a rule for bridge_info: 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 HueMCP. Nothing to install.
bridge_info 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 bridge_info 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 bridge_info. 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.
bridge_info is provided by the Hue MCP server (mbruton/huemcp). 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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