AI agents call sonarr.series_search to retrieve information from Arr Stack without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'search' verb in the tool name indicates a Read operation—querying or retrieving data about TV series in Sonarr. Search operations typically have no side effects. Without a description, confidence is slightly reduced, but the naming pattern is clear and consistent with sibling tools like 'jellyfin.library_search' which are similarly informational.
From the tool's definition Tool name is 'sonarr.series_search' which indicates a search operation; description is empty but naming convention and server context (Sonarr TV series management) suggest data retrieval without modification.
Attacks that exploit this kind of access
sonarr.series_search. It is categorised as a Read tool in the Arr Stack MCP Server, which means it retrieves data without modifying state.
Register the Arr Stack MCP server in PolicyLayer and add a rule for sonarr.series_search: 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 Arr Stack. Nothing to install.
sonarr.series_search 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 sonarr.series_search 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 sonarr.series_search. 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.
sonarr.series_search is provided by the Arr Stack MCP server (new-usemame/arr-stack-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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