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rollecode

lastfm-mcp

by rollecode

remove_album_tag

DestructiveIdempotent

Remove a single tag you applied to an album on Last.fm. Provide artist, album, and tag to update your album tags.

Instructions

Remove one of your tags from an album. Needs authentication.

Args: artist: Artist name. album: Album name. tag: The single tag to remove.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tagYes
albumYes
artistYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4/5.0
Behavior4/5

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

The description adds the important behavioral requirement of authentication and clarifies that only the caller's own tags are affected, beyond what the annotations already indicate about destructiveness. It does not detail side effects like what happens if the tag does not exist, but the destructive and idempotent hints cover much of the behavioral profile.

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 compact and front-loaded, stating the core action in the first sentence and following with a concise parameter list. No words are wasted.

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 three-parameter mutation tool with annotations covering destructive, idempotent, and non-read-only behavior, the description is largely complete. It adds authentication and user-scope context. It does not describe response details or error conditions, but an output schema is present and complexity is low.

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 compensate. It provides a brief semantic for each parameter: artist name, album name, and the single tag to remove. This clarifies the basics but does not add format details, constraints, or edge-case behavior.

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 the specific action 'Remove', the object 'one of your tags', and the target resource 'from an album', making the tool's purpose immediately clear. It is easily distinguished from sibling tools like remove_artist_tag and remove_track_tag.

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

Usage Guidelines3/5

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

The purpose itself implies when to use the tool: whenever a user wants to remove their own tag from an album. However, it does not explicitly mention alternatives, such as remove_artist_tag or remove_track_tag, nor does it state when not to use this tool.

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