AI agents call get_listening_stats to retrieve information from Rewind without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns statistical summaries of listening history (scrobbles, artists, albums, tracks, daily averages). It performs read-only operations with no side effects—no data is created, modified, deleted, or financial transactions occur. The blast radius is minimal as misuse would only expose personal listening data, not alter or delete it. Classified as Read with low severity.
From the tool's definition Tool name 'get_listening_stats' and description 'Get overall listening statistics' clearly indicate data retrieval. The verb 'Get' and the explicit statement it 'retrieves' aggregate metrics from Last.fm with no modification capability mentioned.
Attacks that exploit this kind of access
Get overall listening statistics from Last.fm including total scrobbles, unique artists, albums, tracks, and daily average. Supports date filtering. It is categorised as a Read tool in the Rewind MCP Server, which means it retrieves data without modifying state.
Register the Rewind MCP server in PolicyLayer and add a rule for get_listening_stats: 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 Rewind. Nothing to install.
get_listening_stats 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 get_listening_stats 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 get_listening_stats. 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.
get_listening_stats is provided by the Rewind MCP server (rewind-mcp-server). 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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