spotify-mcp

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

With no annotations provided, the description carries full burden but fails to disclose critical behaviors: whether the playlist is saved to the user's library, whether tracks are automatically populated, rate limits, or what the output schema contains (despite its existence).

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?

Single sentence structure is efficient and front-loaded with the verb. Every word earns its place. However, given the complete lack of schema descriptions and behavioral annotations, the brevity contributes to under-specification.

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?

Inadequate for a 3-parameter tool with 0% schema coverage and complex sibling relationships. Missing: parameter details for 2/3 fields, output schema description (despite existence), differentiation from similar tools, and behavioral side effects.

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 coverage is 0%, requiring description compensation. It provides enumerated values for the 'mood' parameter (happy, sad, etc.), which adds crucial semantic constraints. However, it completely omits explanation of 'name' (presumably the playlist title) and 'limit' (presumably track count).

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 (Create), resource (playlist), and specific scope (matching a mood with enumerated examples). However, it does not distinguish from siblings like 'spotify_create_playlist' or 'spotify_discover_by_mood', which also handle playlist/mood creation.

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 provided on when to use this versus 'spotify_create_playlist' (manual creation) or 'spotify_discover_by_mood' (discovery). No prerequisites mentioned, such as requiring Spotify authentication or existing library access.

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