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rollecode

Radarr MCP server

by rollecode

list_release

Read-onlyIdempotent

Find available release options for a specific movie by its Radarr movie ID, helping you compare and select the right version to download.

Instructions

Read Release.

GET /api/v3/release

Args: movie_id: Query parameter.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
movie_idNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.7/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds only 'Read' and the GET endpoint, which is consistent but adds no behavioral nuance beyond the annotations, such as what data is returned or whether movie_id is required for meaningful results.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The text is compact and front-loads the core operation ('Read Release') before the endpoint and argument. No filler is present, though the brevity comes at the cost of explanatory content.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with one optional parameter and an output schema, the description could be minimal, but it does not explain what a Release is or how movie_id filters the results. An agent is left to infer the purpose from the endpoint path and sibling names.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must explain the parameter, but it only repeats that movie_id is a query parameter. It does not clarify that movie_id identifies the movie whose releases are listed, nor note that it is optional/nullable beyond the schema default.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description states a clear verb and resource: 'Read Release' and the endpoint GET /api/v3/release. It does not explicitly distinguish list_release from related siblings like list_releaseprofile or create_release, so it falls short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is given about when to call this tool versus alternatives such as create_release, create_release_push, or list_releaseprofile. The optional movie_id parameter is mentioned but there is no context for how an agent should decide to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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