play_playlist

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

No annotations are present, so the description must carry the behavioral burden. It discloses only the core action (start playback) and the shuffle option; it does not mention side effects, device requirements, error behavior, or whether current playback is replaced.

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?

A single sentence contains the full instruction: start playback, resource type, identifier, and optional shuffle. It is front-loaded and omits redundant detail, making it appropriately sized.

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 two-parameter tool with an output schema, the core call sequence is covered: playlist_id and shuffle. Yet with no annotations and no guidance about playback device or interaction with the sibling 'play' tool, the description leaves contextual gaps.

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?

With 0% schema description coverage, the description compensates by identifying playlist_id as the Spotify id and clarifying that shuffle is optional. Both parameters are addressed, though no further format details are given.

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 uses a specific verb ('Start playback') and names the exact resource ('a playlist by its Spotify id'), also mentioning the optional shuffle behavior. It is clearly distinct from the sibling 'play' tool, though it does not explicitly name or contrast alternatives.

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 use case is implied: call this when you want to begin playing a playlist, identified by its Spotify id. There is no explicit when-to-use/when-not-to-use guidance or comparison with sibling tools such as 'play' or 'control'.

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