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create_user_playlist

Create a new playlist in your Spotify account with a name and optional description. Note: the public setting is ignored by Spotify's API.

Instructions

Create a new playlist in the logged-in user's Spotify account.

⚠️ public=False is currently ignored by Spotify's API — playlists are created public regardless (confirmed bug on Spotify's side, not this server; see journal entry 30).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes
publicNo
descriptionNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.2/5.0
Behavior4/5

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

With no annotations provided, the description carries the full behavioral burden. It explicitly discloses that the `public` parameter is ignored by Spotify's API, a valuable behavioral quirk that affects usage. It does not cover other potential behaviors like authentication or side effects, but for a creation operation, the disclosed bug is significant and helpful.

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 two sentences, with the purpose front-loaded and the warning presented clearly. Every word earns its place, and the use of a warning symbol draws attention to the critical behavioral note without unnecessary verbosity.

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?

Given the tool's simplicity and the presence of an output schema, the description adequately covers the core purpose and a known caveat. It does not mention prerequisites like authentication, but that is implicitly expected for a Spotify API tool. Overall, it provides sufficient context for correct usage.

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?

Schema description coverage is 0%, so the description must add meaning to parameters. It directly addresses the `public` parameter, clarifying its effective behavior despite the default. The `name` and `description` parameters are self-explanatory from their names and types, so no further explanation is critical, but the description could have added more details about them.

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

Purpose5/5

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

The description states a clear verb ('Create') and resource ('new playlist in the logged-in user's Spotify account'), which precisely distinguishes it from sibling tools like list_user_playlists and find_playlists. It leaves no ambiguity about the tool's primary function.

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?

The purpose is evident from the name and description, making the appropriate usage context clear (creating a playlist). However, it does not explicitly mention when to avoid this tool or list alternatives, but given the sibling set, the distinction is straightforward.

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