AI agents call tdarr_is_server_alive to retrieve information from Tdarr without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that queries the server's status. It has no side effects, does not execute code or commands, does not modify data, and does not delete or move resources. The low severity reflects that misuse (e.g., an agent repeatedly polling the endpoint) would have minimal impact.
From the tool's definition Tool name 'tdarr_is_server_alive' and description 'Check if the server is alive' indicate a simple health check that retrieves status information without modifying, executing, or affecting any systems.
Attacks that exploit this kind of access
Check if the server is alive (legacy, prefer tdarr_status). It is categorised as a Read tool in the Tdarr MCP Server, which means it retrieves data without modifying state.
Register the Tdarr MCP server in PolicyLayer and add a rule for tdarr_is_server_alive: 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 Tdarr. Nothing to install.
tdarr_is_server_alive 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 tdarr_is_server_alive 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 tdarr_is_server_alive. 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.
tdarr_is_server_alive is provided by the Tdarr MCP server (maximeallanic/tdarr-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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