Edit Playlist Details

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

Annotations already indicate idempotentHint=true and destructiveHint=false. The description adds 'Modify playlist details' which aligns with these hints but does not provide additional behavioral context such as permission requirements, side effects, or partial update behavior. With annotations present, the description adds minimal value.

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 short and front-loaded with the purpose. However, the Args section redundantly lists parameter names and types that are already in the schema. It could be more concise by omitting the Args list or summarizing the parameters.

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 simple 4-parameter tool with an output schema, the description is minimal but adequate. It lacks context on idempotency (though annotations provide it) and does not mention that only provided fields are updated. With output schema present, return values are acceptable, but the description could still be more thorough.

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%, so the description must compensate. However, it only lists parameter names and basic types without any added meaning (e.g., constraints on name length, behavior of null values, or that changes are optional). This barely adds value beyond the schema itself.

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 states 'Modify playlist details' with the verb 'modify' and resource 'playlist details'. It implies updating an existing playlist, which distinguishes it from sibling tools like create_playlist or remove_tracks_from_playlist, though it could be more explicit about the specific fields affected.

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?

No guidance on when to use this tool versus alternatives. It does not mention when not to use it or provide context for choosing between related tools like reorder_playlist_tracks or add_tracks_to_playlist.

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