youtube_classify_playlist

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

With no annotations, the description must fully disclose behavior. 'Preview' and 'deterministic' hint that the operation is read-only and reproducible, but the description does not confirm non-mutation, explain how the rules object affects behavior, or describe the return structure. For a categorization tool with a nested rules param, this is insufficient.

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?

The description is a single efficient sentence and is front-loaded with the most important information. It is not bloated, but the brevity contributes to the semantic gaps noted in parameters and behavioral transparency.

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?

Given 0% schema description coverage, no annotations, no output, and a nested object, the description leaves out critical details: the rules object is allowed but its purpose and structure are unsaid, and the output format isn't hinted. This is inadequate for reliable self-contained tool invocation.

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?

The input schema provides zero descriptions for the `playlist` and `rules` parameters. The description mentions only 'title and channel keywords', which indirectly points to the rules content but fails to explain what `playlist` should be (YouTube URL/ID) or how `rules` maps categories to keyword lists. An agent cannot construct valid arguments from the description alone.

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 gives a concrete verb ('Preview'), resource ('categories for a YouTube playlist'), and mechanism ('using title and channel keywords'). It is distinct from sibling tools like youtube_list_playlists or youtube_check_playlist_duplicates, though 'deterministic categories' could be more explicit.

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 purpose implies when this tool is appropriate: you want a preview of category/mapping before performing other playlist actions. However, no alternatives are named, and there is no explicit when-not-to-use guidance, leaving some room for misrouting between Spotify and YouTube classifier siblings.

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