music_get_tracks

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

Annotations already provide readOnlyHint, idempotentHint, and destructiveHint, so safety is covered. The description adds useful behavioral context: the 500 ID limit and that results are returned in request order. This goes beyond annotations, though it doesn't discuss error handling or behavior for invalid/duplicate IDs, but that's not critical given the annotations and output schema.

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, well-structured sentence that leads with the verb 'Resolve'. It includes key constraints (500, order) without any filler. Every word earns its place.

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?

Given the presence of an output schema and strong annotations, the description is mostly complete. It covers the essential behavior and constraints. However, it doesn't clarify what 'persistent' means or how the 'fields' option affects results, leaving minor gaps. Still, it's well above minimal for a simple get-by-ID tool.

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 description adds meaning for the track_ids parameter (up to 500, persistent IDs) which is not in the schema. However, it provides no explanation for the 'fields' parameter, and with 0% schema description coverage, the agent is left guessing what fields controls. This is a clear gap.

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 clearly states the tool resolves persistent track IDs up to 500, preserving request order. This is a specific verb+resource+scope that distinguishes it from siblings like music_list_playlist_tracks or music_search_tracks.

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?

Usage is implied: you use this when you have specific track IDs to look up. However, there is no explicit mention of when not to use it or alternatives for finding tracks (e.g., search). The description doesn't mention that for playlists, music_list_playlist_tracks should be used instead.

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