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walter-kai

Spotify MCP Server

by walter-kai

spotify_get_playlist

Retrieve details for a specific Spotify playlist by ID, including metadata for playback, playlist management, or music search workflows.

Instructions

Get details of a specific playlist

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
playlist_idYesSpotify playlist ID

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.2.4

TDQS

C2.9/5.0
Behavior2/5

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

No annotations and no output schema are provided, so the description carries the full behavioral burden. 'Get details' implies a read, but the description says nothing about what details are returned, pagination, auth requirements, or error behavior (e.g., invalid ID). This is a significant gap for a tool with zero structured behavioral coverage.

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

Conciseness4/5

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

A single front-loaded sentence with no wasted words. It is appropriately sized, though its brevity reflects under-specification rather than optimal economy.

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?

For a simple single-parameter read tool with no output schema, the description is minimally adequate. But with no annotations to cover safety and no return-value context, an agent lacks enough to call it confidently in edge cases.

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

Parameters3/5

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

There is one parameter (playlist_id) with 100% schema description coverage, so the schema already documents it fully. The description adds no format, ID syntax, or example beyond the schema, making the baseline 3 appropriate.

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?

States a specific verb (get) and resource (details of a specific playlist), which is clear enough for an agent to understand the operation. However, it does not differentiate itself from the sibling spotify_get_playlists (plural) beyond the singular wording, leaving the read-one vs read-all distinction implicit.

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?

No guidance on when to use this tool versus spotify_get_playlists or spotify_get_playback_state, and no mention of prerequisites (e.g., needing a valid playlist ID or auth scope). The agent must infer usage entirely.

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