apple_spotify

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

There are no annotations, and the description gives no behavioral details such as side effects (e.g., opening Spotify search UI), limitations (e.g., AppleScript cannot list playlists directly), or permission requirements. The schema's action descriptions carry the transparency burden, not the main description.

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, front-loaded sentence: 'Control Spotify.' followed by a compact list of actions. It is concise, free of filler, and every word serves a purpose.

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?

The rich schema covers the action semantics, but the description itself omits important contextual details like the confirm parameter for protected actions and how to choose among similar actions (play vs playpause vs play_track). It is adequate but not fully complete for a tool with 17 actions.

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?

Schema description coverage is 100%, with detailed explanations for the action enum and all parameters. The description adds little beyond listing action names, so it does not improve upon the structured schema.

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 states 'Control Spotify' which is a clear verb+resource statement, and the explicit list of actions (play, pause, next, etc.) makes the tool's purpose obvious. It distinguishes from siblings by naming Spotify, though it doesn't explicitly contrast with apple_music or apple_podcasts.

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?

No guidance is provided about when to use this tool versus alternatives like apple_music or apple_podcasts. It simply lists actions without any context on prerequisites, exclusions, or preferred use cases.

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