AI agents call bazarr_get_series to retrieve information from Nas 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 information about TV series and their subtitle metadata from Bazarr (a subtitle management system). It performs no modifications, deletions, or external operations—purely a read/retrieval action against the media server's database. The low severity reflects minimal blast radius if misused; an agent could only retrieve information about available series.
From the tool's definition Tool name 'bazarr_get_series' and description 'Liste les séries avec leurs informations de sous-titres' (Lists series with their subtitle information) indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Liste les séries avec leurs informations de sous-titres. It is categorised as a Read tool in the Nas MCP Server, which means it retrieves data without modifying state.
Register the Nas MCP server in PolicyLayer and add a rule for bazarr_get_series: 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 Nas. Nothing to install.
bazarr_get_series 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 bazarr_get_series 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 bazarr_get_series. 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.
bazarr_get_series is provided by the Nas MCP server (matthieurosset/nas-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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