label_explorer

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

With no annotations provided, the description carries full disclosure burden. It adds useful behavioral context: label data comes from 'chunked full-album fan-in' and there is a quota of '1 walk + 1 /albums?ids= call per 20 albums'. It does not, however, disclose what the census output actually contains or how missing/empty label results behave.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two dense sentences deliver purpose, provenance, optional filtering behavior, and quota with no filler. The only minor issue is that 'chunked full-album fan-in' is jargon-heavy and may obscure rather than clarify.

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

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

For a read-only census tool with no required params, this is mostly usable: it says what it does, how to filter, and what resource cost to expect. Still, it lacks alignment with overlapping siblings (especially saved_albums_by_label), leaves max_results undocumented, and does not describe census output shape without an output schema.

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

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 75%, so the schema already documents most parameters. The description adds meaningful semantics for the 'label' parameter by explaining it filters to just that label's albums in the library. It provides no additional meaning for 'max_results', and only indirectly implies the scan cap via quota language.

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

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

The description clearly names the resource ('record labels'), the scope ('across your saved albums'), and the optional filtering behavior ('pass a label name to list just that label's albums'). It reads as a distinct census/list operation, though it does not explicitly differentiate itself from the similarly named sibling saved_albums_by_label.

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

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

The description implies the main use case: summarizing labels from saved albums, with label filtering as an alternative invocation. However, it offers no guidance on when to choose this tool over near-synims like saved_albums_by_label or label_discography_explorer, and no exclusions or prerequisite conditions are provided.

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