youtube_set_playlist_description

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

No annotations are provided, so the description must carry the full behavioral burden. It discloses only that this is a mutation tool and that the playlist must be editable, but says nothing about permissions, whether the description is replaced entirely, API limits, or error behavior.

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 short sentence with no filler and is front-loaded with the verb and resource. It is concise, though arguably too terse for a mutation tool whose behavior is otherwise undocumented.

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 zero annotations, no output schema, and 0% schema description coverage, the description is incomplete for a mutation tool. It does not cover permissions, return behavior, validation constraints, or how it relates to sibling playlist-editing tools.

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 0%, and the description does not explain the required 'playlist_id' parameter or the 'description' parameter's 5000-character limit. It only loosely identifies that a playlist description is being set, leaving parameter semantics largely undocumented.

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 states a specific verb ('Set') and resource ('playlist description'), and adds the qualifier 'editable'. It is clear what the tool does, but it does not explicitly distinguish itself from sibling playlist-mutation tools such as youtube_rename_playlist.

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?

There is no guidance on when to use this tool versus alternatives like youtube_rename_playlist or when not to use it. It only implies that the operation applies to an editable playlist, with no prerequisites or exclusions stated.

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