spotify_split_playlist_by_artist

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

With no annotations, the description adds behavioral context by noting the 'Various' playlist rule. However, it does not disclose side effects (e.g., whether original playlist is modified, creation of new playlists, permissions required). Some transparency, but incomplete.

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?

Two sentences, no wasted words. The key behavior and special case are front-loaded. Perfectly concise for the scope.

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 an output schema exists, return values may be handled there. But the description omits whether the original playlist is changed, how many playlists are created, or any prerequisites (e.g., user must own playlist). Misses some important contextual details for a mutating 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?

Schema description coverage is 0%, so the description must compensate. It adds no meaning to the playlist_id parameter beyond the schema's title. While the parameter's purpose is inferable from context, the description should clarify it's the Spotify ID/URI of the source playlist.

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 action: splitting a playlist into per-artist sub-playlists, with a specific rule for artists with fewer than 3 tracks going into a 'Various' playlist. This distinguishes it from siblings like spotify_merge_playlists or spotify_deduplicate_playlist.

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 usage for organizing playlists by artist, but does not explicitly state when to use vs alternatives or provide exclusions. The context is clear enough, but no explicit guidance is given.

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