Search across all Prowlarr indexers
AI agents call search-indexers to retrieve information from Yarr Media Stack without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only search operation across Prowlarr indexers. It retrieves information about available media but does not create, modify, delete, or execute external operations. The action is passive data retrieval with no side effects, fitting the 'Read' category. Severity is low because search queries pose minimal risk even if misused by an AI agent—they cannot harm systems or data.
From the tool's definition Tool name 'search-indexers' and description 'Search across all Prowlarr indexers' indicate a query operation that retrieves search results from media indexers without modifying any data.
Attacks that exploit this kind of access
Search across all Prowlarr indexers. It is categorised as a Read tool in the Yarr Media Stack MCP Server, which means it retrieves data without modifying state.
Register the Yarr Media Stack MCP server in PolicyLayer and add a rule for search-indexers: 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 Yarr Media Stack. Nothing to install.
search-indexers 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 search-indexers 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 search-indexers. 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.
search-indexers is provided by the Yarr Media Stack MCP server (mcpnexus-registry/yarr). 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.
Teams ship this data inside their own products. See what a licence covers →