AI agents call list_live_streams to retrieve information from Mux without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about live stream status without creating, modifying, deleting, or executing any operations. It is a passive monitoring capability that queries state information, placing it squarely in the Read category with low severity since it poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'list_live_streams' and description stating 'List live streams and their current state' indicates a query/retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List live streams and their current state. Useful to monitor if a broadcast is active, idle, or disconnected. It is categorised as a Read tool in the Mux MCP Server, which means it retrieves data without modifying state.
Register the Mux MCP server in PolicyLayer and add a rule for list_live_streams: 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 Mux. Nothing to install.
list_live_streams 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 list_live_streams 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 list_live_streams. 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.
list_live_streams is provided by the Mux MCP server (nobanks/mux-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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