AI agents use sonarr_add_series to create or update resources in Arr Suite MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Arr Suite MCP Server environment.
Adding a series is a reversible write operation that modifies the system state by creating a new entry. It does not execute arbitrary code, delete data, or move money. However, the medium severity reflects that unauthorized series additions could trigger unintended media downloads or storage consumption, with moderate blast radius if an AI misuses this in an uncontrolled context.
From the tool's definition Tool is named 'sonarr_add_series' and described as 'Add a new TV series to Sonarr' — this creates a new record in the Sonarr media management system.
Documented attack patterns abuse exactly the kind of access sonarr_add_series gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Arr Suite MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for sonarr_add_series:
{
"version": "1",
"default": "deny",
"tools": {
"sonarr_add_series": {
"limits": [
{
"counter": "sonarr_add_series_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}sonarr_add_series stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Add a new TV series to Sonarr. It is categorised as a Write tool in the Arr Suite MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Arr Suite MCP Server MCP server in PolicyLayer and add a rule for sonarr_add_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 Arr Suite MCP Server. Nothing to install.
sonarr_add_series is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the sonarr_add_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 sonarr_add_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.
sonarr_add_series is provided by the Arr Suite MCP Server MCP server (shaktech786/arr-suite-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Arr Suite MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
25 Arr Suite MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.