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walterreiner

mcp-spotify-cli

by walterreiner

get_my_playlists

Fetch the authenticated user's Spotify playlists with URIs, enabling playback of 'my playlist' or 'my playlists'.

Instructions

Devuelve las playlists del usuario autenticado con sus URIs. Usá siempre esta herramienta primero si el usuario pide reproducir 'mi playlist' o 'mis playlists'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.9/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It implies a read-only operation via 'Devuelve' and mentions authenticated-user scope, but it does not discuss permissions, rate limits, or side effects. With an output schema present, return values are covered elsewhere.

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?

Two sentences, front-loaded with the core purpose, and the usage trigger follows immediately. Every sentence earns its place with no wasted wording.

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

Completeness4/5

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

For a simple read-only list tool with an empty input schema and an output schema, the description supplies the needed scope and usage trigger. It could more explicitly distinguish when to use this versus search_playlist, but nothing essential to invoking it correctly is missing.

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?

The tool has zero parameters, so there is no parameter syntax to explain. The baseline for a no-parameter tool is 4.

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 states a specific verb and resource: returns the authenticated user's playlists with their URIs. The scope 'usuario autenticado' implicitly distinguishes it from search_playlist, but no sibling is named explicitly, so it stops short of 5.

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

Usage Guidelines4/5

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

It gives a clear trigger: always use this tool first when the user asks to play 'my playlist' or 'my playlists'. It does not name alternative tools or conditions for not using it, but the usage context is explicit and actionable.

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