AI agents call get_recently_added to retrieve information from Mcp Plex without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves recently added media items from a Plex library. It performs a read-only operation that retrieves existing data without creating, modifying, deleting, or executing any external actions. The blast radius of misuse is minimal — an agent could only retrieve information about media in the library.
From the tool's definition Tool name is 'get_recently_added' and description states 'Get recently added media from Plex' — a pure retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Get recently added media from Plex. It is categorised as a Read tool in the Mcp Plex MCP Server, which means it retrieves data without modifying state.
Register the Mcp Plex MCP server in PolicyLayer and add a rule for get_recently_added: 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 Mcp Plex. Nothing to install.
get_recently_added 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_recently_added 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_recently_added. 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_recently_added is provided by the Mcp Plex MCP server (obrien-matthew/mcp-plex). 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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