get_users_by_id_smart_lists

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, and the description does not contradict them. Apart from restating the GET endpoint, it discloses no additional behavior such as pagination, authentication requirements, or what is returned beyond the resource name.

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?

Three short sections with no filler, and the key meaning is front-loaded. The endpoint line is slightly redundant with the tool name but adds exact URL context at negligible cost.

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 single-parameter read-only GET whose output schema exists and whose safety profile is covered by annotations, the description is sufficient for a competent agent to call it. It lacks sibling guidance and pagination details, but those are not required to invoke correctly.

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 schema provides only a bare string named id with no description (0% coverage). The description compensates by explaining that id is a user slug and that 'me' refers to the authenticated user, which is essential invocation information.

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 opening sentence names a concrete verb and resource ('Get a user's smart lists'), and the plural resource distinguishes it from single-list siblings such as get_users_by_id_smart_lists_by_list_id. It does not explicitly state that it returns all smart lists for the user, but the intent is clear.

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 no conditions for when this tool should be called or how it relates to get_smart_lists_by_list_id or create/update/delete smart-list tools. The only usage-like info is the id fallback to 'me', which is about parameter selection rather than tool selection.

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