AI agents call overseerr_search 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 is a search/query function that retrieves information from Overseerr and TMDB databases. It has no side effects on data (no creation, modification, or deletion) and does not execute code or trigger external operations. It is a straightforward read operation with minimal risk if misused by an AI agent.
From the tool's definition Tool name 'overseerr_search' and description 'Search for movies, series or people in Overseerr/TMDB' indicate a query operation that retrieves data without modifying, deleting, or executing external operations.
Attacks that exploit this kind of access
Recherche des films, séries ou personnes dans Overseerr/TMDB. 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 overseerr_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 Nas. Nothing to install.
overseerr_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 overseerr_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 overseerr_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.
overseerr_search 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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