// SCAN REPORT

Arr Assistant

6 tools. 3 can modify or destroy data without limits.

3 write tools that can modify data. Rate limits recommended.

Last updated: 12 Jun 2026

3 can modify or destroy data

3 read-only

6 tools total

Community server · catalogue entry verified 12/06/2026

How to control Arr Assistant ↓

TOOL MAP

What Arr Assistant exposes to your agents

Read (3) Write / Execute (3) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Arr Assistant tools

Write · Medium add_movie_by_id This tool creates new entries in a media management system (Radarr) by adding movies. Write · Medium add_show_by_tvdb_id This tool adds TV shows to a media management system (Sonarr), modifying the library state. Write · High search_and_add_show Based on the tool name and server context, this tool likely searches for a TV show and adds it to Sonarr.

3 of Arr Assistant's 6 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Arr Assistant

PolicyLayer is an MCP gateway — it sits between your AI agents and Arr Assistant, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "search_and_add_show": {
    "limits": [
      {
        "counter": "search_and_add_show_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "get_server_status": {
    "limits": [
      {
        "counter": "get_server_status_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Arr Assistant — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON ARR ASSISTANT →

Free to start. No card required.

FULL CATALOGUE

All 6 Arr Assistant tools

WRITE 3 tools

Write search_and_add_show search_and_add_show Write add_movie_by_id Add a specific movie to Radarr using its TMDb ID. Write add_show_by_tvdb_id Add a specific TV show to Sonarr using its TVDB ID.

READ 3 tools

Read get_server_status Check the status and connectivity of Radarr and Sonarr servers. Read search_movies Search for movies by title using Radarr's built-in lookup. Read test_config Test the current configuration and API connectivity.

FAQ

Questions about Arr Assistant

How do I prevent bulk modifications through Arr Assistant? +

The Arr Assistant server has 3 write tools including search_and_add_show, add_movie_by_id, add_show_by_tvdb_id. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Arr Assistant.

How many tools does the Arr Assistant MCP server expose? +

6 tools across 2 categories: Read, Write. 3 are read-only. 3 can modify, create, or delete data.

How do I enforce a policy on Arr Assistant? +

Register the Arr Assistant MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Arr Assistant tool call.

Deterministic rules across all 6 Arr Assistant tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON ARR ASSISTANT →

Free to start. No card required.

6 Arr Assistant tools catalogued and risk-classified — across an index of 43,000+ MCP servers.