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discogs_master_versions

Retrieve all pressings of a Discogs master release, filtered by format, to compare editions and identify specific versions.

Instructions

All pressings of a master release (filter by format).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
formatNoVinyl
master_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral-disclosure burden. It does not state that this is a read-only operation, whether authentication or rate limits apply, or how results are paginated or ordered.

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 a single front-loaded sentence with no filler. It immediately states what is returned and the optional filter, and nothing needs trimming.

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

Completeness3/5

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

For a simple two-parameter lookup with an output schema, the description covers the core purpose adequately. However, with no annotations and 0% schema description coverage, it remains thin on parameter semantics and behavioral details such as pagination or read-only status.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

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 gestures at a master release and a format filter, but does not name the parameters, explain acceptable format values, or mention the default of 'Vinyl'. It adds only marginal meaning beyond the schema titles.

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 clearly states the resource and scope: all pressings of a master release, with a format filter. It is specific enough to distinguish from siblings like discogs_release or discogs_search, though it does not explicitly name alternatives.

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

Usage Guidelines2/5

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

It implies the tool is used to retrieve pressings and optionally filter by format, but offers no guidance on when to choose it over sibling tools such as discogs_release or discogs_search. There are no when-to-use or when-not-to-use statements.

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