saveOrRemoveAlbumForUser

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

With no annotations, the description carries the full burden of behavioral disclosure. It states the core operation but omits important traits: it is a mutating operation, likely requires user authentication, and may be irreversible. No side effects, permission requirements, or error behavior are disclosed.

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 concise sentence that directly states the tool's purpose. Every word adds value, with no redundancy or filler.

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 two-parameter tool with complete schema documentation, the description is adequate but not rich. It lacks usage guidelines, behavioral context, and any note on return values. However, the schema covers parameters, and the purpose is clear, making it a minimally complete description for basic selection and invocation.

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% for both parameters. The description adds no extra semantic detail beyond what the schema already provides for 'action' and 'albumIds'. Baseline 3 is appropriate because the schema handles parameter meaning adequately.

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 action (save or remove) and the resource (albums in the user's Your Music library). It is specific and distinguishes this tool from siblings like checkUsersSavedAlbums (read-only) or removeUsersSavedTracks (tracks, not albums).

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 implies usage for adding/removing albums but provides no explicit guidance on when to use this tool versus alternatives. It does not mention that checkUsersSavedAlbums exists for reading, or clarify prerequisites such as authentication. Usage context is implied rather than explicit.

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