update_playlist

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

No annotations are provided, so the description bears full responsibility for behavioral disclosure. It states 'update' which implies mutation, but does not disclose any side effects, prerequisites (e.g., authentication, ownership), error behavior, or irreversibility. This is insufficient for a mutation 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 extremely concise: two sentences with no wasted words. It front-loads the core action and then provides an essential usage hint, making it efficient for quick parsing.

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 the tool has an output schema (covering return values) and the parameter schema is fully documented, the description captures the core functionality and the partial update nuance. However, it lacks behavioral transparency (e.g., requirements, errors), which lowers completeness for a mutation tool.

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 covers 100% of parameters, but the description adds valuable usage semantics beyond the schema: emphasizing that all fields except 'playlist_id' are optional and only those to be changed should be provided. This helps the agent understand the partial update pattern.

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 the verb 'update' and the resource 'playlist details' with specific fields (name, description, public status). It distinguishes from sibling tools like 'create_playlist' and 'add_tracks_to_playlist' by focusing on metadata changes, but could be more explicit about not adding or removing tracks.

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 gives a partial update hint ('Only provide the fields you want to change'), but provides no guidance on when to use this tool versus alternatives like 'create_playlist' or 'get_playlist_info'. It lacks context for appropriate usage scenarios and excludes when-not-to-use information.

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