Set

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the description carries a lower burden. But the description adds no behavioral context beyond the annotations—no mention of pagination, ordering, auth requirements, or what 'all tracks' means in practice. It repeats the resource rather than adding transparency.

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 front-loaded fragment with no filler. It is appropriately sized for a simple tool, though its brevity contributes to gaps handled in other dimensions.

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 one-parameter read tool with full schema coverage and readOnly annotations, the description is minimally adequate. It does not describe the return shape or whether the track list is paginated, which would be useful since no output schema exists.

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%, and the single 'permalink' parameter is well documented with an example. The description adds no parameter semantics, but the baseline of 3 applies when the schema already carries parameter documentation.

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 says it returns 'all tracks of a set,' which conveys the resource and that it is a read of a set's contents. However, it omits the verb and does not distinguish this from siblings like list_my_sets, get_track, or add_to_set. It is a vague but not misleading statement of purpose.

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 is given on when to use this tool versus alternatives such as list_my_sets (to find a set) or get_track (to inspect a track). There are no prerequisites or exclusions mentioned, leaving the agent to infer usage entirely.

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