overlap_playlists

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

No annotations are present, so the description carries the burden of behavioral disclosure. It clearly describes the computation: count per track, filter by min_overlap, and sort most-shared first, plus the default threshold. It does not explicitly state read-only or side-effect behavior, but the verbs 'find', 'reports', and 'lists' strongly imply a non-mutating analysis tool.

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 sentence that front-loads the core purpose, then packs the key behavioral details — count behavior, threshold, default, and ordering — with no filler or redundancy.

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?

With no output schema, the description still explains the return semantics: per-track playlist counts, a filtered list based on min_overlap, and ordering. It is complete enough for core invocation, though the exact shape of returned track items and explicit use-case exclusions are left to inference.

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 description coverage is 100%, so the baseline is 3. The description restates the min_overlap default already present in the schema and adds 'most-shared first', which is an output-ordering detail rather than new parameter-level meaning.

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?

States a specific verb and resource (find tracks shared across playlists) and adds unique behavior: per-track playlist counts, min_overlap filtering, and most-shared-first ordering. However, it does not explicitly differentiate itself from sibling tools like playlist_intersection or playlist_overlap_matrix, so it stops short of full sibling differentiation.

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 intended use is implied by 'Find tracks shared across playlists' and the min_overlap parameter, which suggests when to tighten or loosen the overlap requirement. But the description gives no explicit guidance on when to choose this tool over alternatives or when not to use it.

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