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spotify_playlist_compare

Compare up to 5 Spotify playlists to find shared tracks, unique songs, and overlapping artists. Analyze playlist sizes and durations side by side.

Instructions

Compare 2-5 playlists side by side: shared tracks, shared artists, unique tracks, and size/duration.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
playlist_idsYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, so the description carries the full disclosure burden. While it lists what gets analyzed (shared tracks, etc.), it does not indicate whether this is a read-only operation, any rate limits, or authentication requirements. The existence of an output schema reduces the need to document return values.

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

Conciseness5/5

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

The description is a single, information-dense sentence with no filler. It front-loads the operation ('Compare'), specifies constraints ('2-5'), and enumerates outputs efficiently. Every clause earns its place.

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

Completeness3/5

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

Given the tool has only one parameter and an output schema exists, the description covers the basic invocation pattern adequately. However, given the crowded namespace of 70+ sibling tools with many playlist-related operations, the omission of sibling differentiation guidance leaves a significant gap in contextual completeness.

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

Parameters4/5

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

With 0% schema description coverage, the description must compensate entirely. It successfully adds the critical constraint that 2-5 playlists are required, which is not evident from the schema (which only shows 'array of strings'). This cardinality constraint is essential for correct invocation.

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

Purpose4/5

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

The description clearly states the tool compares playlists (2-5 specifically) and lists the specific analysis dimensions (shared tracks, artists, unique tracks, size/duration). However, it does not explicitly differentiate from similar sibling tools like 'spotify_find_playlist_overlaps' or 'spotify_playlist_diff'.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus the numerous alternative playlist comparison tools available (e.g., spotify_playlist_diff, spotify_find_playlist_overlaps, spotify_merge_playlists). No prerequisites or exclusion criteria are mentioned.

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

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