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rollecode

lastfm-mcp

by rollecode

search_albums

Read-onlyIdempotent

Search albums by name and return the best matches first, with options to limit results per page and specify the page.

Instructions

Search albums by name, best match first.

Args: album: The album name to search for. limit: Results per page (default 30, maximum 1000). page: Which page of results to fetch.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pageNo
albumYes
limitNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4.3/5.0
Behavior3/5

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

Annotations already establish read-only, open-world, idempotent, non-destructive behavior. The description adds 'best match first' ordering and pagination limits, which are not in the schema or annotations, but does not discuss authentication or response behavior.

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 short, purposeful sentences plus an Args list. The core behavior is front-loaded and every line adds information.

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

Completeness5/5

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

For a simple read-only search with an output schema, the description covers the required album parameter and optional pagination details. The annotations handle safety and idempotency, so no critical behavioral information 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?

Schema description coverage is 0%, and the description compensates by explaining all three parameters: album name, results per page with default/maximum, and page selection. It adds practical meaning beyond the bare property names and types, though page remains minimally described.

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?

States 'Search albums by name' with a clear verb and resource, and 'best match first' clarifies ordering. This distinguishes it from sibling search_tracks/search_artists and from direct get_album lookups.

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 phrase 'by name' gives a clear context for when to invoke it, but the description does not explicitly contrast it with alternatives such as get_album for known album IDs or search_artists/search_tracks. No when-not-to-use guidance is provided.

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