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hlights33
by hlights33

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Read-only

Query the Discogs database by free text plus filters like artist, label, year, barcode, or catalog number. Returns a compact list; use release, master, artist, or label lookups for details.

Instructions

Search the Discogs database. Combine free-text query with field filters.

    Use barcode or catno to pin down a specific pressing. `year` accepts a year or
    range like "1990-1995". Returns a compact list; fetch details with get_release /
    get_master / get_artist / get_label.
    

Input Schema

NameRequiredDescriptionDefault
pageNo
typeNo
yearNo
catnoNo
genreNo
labelNo
queryNo
styleNo
trackNo
artistNo
formatNo
barcodeNo
countryNo
per_pageNo
release_titleNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.5/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description usefully adds that the return is a compact list and that detail requires a second call, but says nothing about pagination behavior despite page/per_page, nor about rate limits or result caps.

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?

Front-loads the purpose in one sentence, then adds two short sentences of practical detail with no filler. Slightly awkward wrapping/indentation but every sentence contributes information.

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

Completeness2/5

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

For a 15-parameter tool with zero schema coverage and no output schema, the description documents only about four parameters and omits pagination, result limits, and the meaning of the `type` selector. An agent could invoke it, but not confidently or completely.

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% across 15 parameters, so the description carries the burden and only partially meets it. It clarifies query semantics, the `year` range format ("1990-1995"), and the barcode/catno pinning use case, but leaves type, genre, style, track, format, country, release_title, page, and per_page entirely unexplained.

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 and resource ('Search the Discogs database') and signals the mix of free-text query plus field filters. It partially differentiates from siblings by routing detail lookups to get_release/get_master/get_artist/get_label, but never says how it relates to collection-scoped siblings like find_in_collection or query_collection.

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?

Gives concrete strategy: combine `query` with field filters, use barcode or catno to pin down a specific pressing, and fetch details via the get_* tools. It stops short of exclusions (e.g. that this does not search the user's own collection), so it is clear context without full when-not guidance.

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