get_playlists

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

The description adds no behavioral details beyond the annotations. Annotations already indicate a safe read operation (readOnlyHint=true, destructiveHint=false), but the description does not disclose return format, whether it includes playlist contents, or any additional context such as authentication requirements. It essentially restates the tool's name.

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

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

The description is a single concise sentence that directly communicates the tool's function. It contains no filler and is front-loaded with the action ('Get') and target ('all Plex playlists').

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

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

For a simple read-only tool with no parameters and no output schema, the description is sufficiently complete. It tells the agent exactly what the tool returns (all playlists), and annotations cover the safety aspects. The lack of details about return structure is acceptable given the tool's simplicity.

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

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

The input schema has zero parameters, and schema description coverage is vacuously 100%. With no parameters to explain, the baseline of 4 is appropriate; the description does not need to elaborate on parameter behavior.

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

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

The description 'Get all Plex playlists' uses a specific verb ('Get'), identifies the resource ('Plex playlists'), and specifies the scope ('all'). This clearly distinguishes it from sibling tools like get_playlist_items, which focuses on items within a playlist, and create_playlist, which is for creation.

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

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

The description implies the use case—anytime you need a complete list of Plex playlists—but it does not explicitly state when to use this tool over alternatives. No exclusions or alternative references are provided, so guidance is implied rather than stated.

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