unfollowPlaylist

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

With no annotations, the description carries the full burden, and it discloses an important behavioral trait: the operation is a library removal, not a destructive deletion, so the playlist persists for other users. It omits auth/permission requirements and whether re-following restores it, but the key consequence is surfaced.

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 tight sentences with the core operation front-loaded and the clarifying caveat second. No redundant restatement of the name or title.

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 single-parameter mutation with no annotations and no output schema, the essentials are present: what changes, and that deletion is out of scope. Minor gaps remain around auth requirements and idempotency, which keep it short of a 5.

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 playlistId is already fully documented in the schema. The description adds no format, syntax, or constraint detail beyond what the schema provides, so baseline 3 applies.

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 (remove/unfollow) and resource (playlist from the current user's library) and disambiguates from permanent deletion. An agent can tell this apart from updatePlaylist or removeTracksFromPlaylist without opening a schema. The parenthetical '(unfollow)' ties the jargon to the operation plainly.

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 makes the use condition clear: remove a playlist from the user's own library, with the explicit note that permanent deletion is not possible via the API. It gives a clear context but does not name a specific alternative tool for related operations (e.g. updatePlaylist for playlist details).

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