get_sleep_time

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

With no annotations, the description carries the full behavioral burden, yet it says nothing about pagination (despite a next_token parameter), default date ranges, auth requirements, or what the returned 'windows and recommendations' actually contain. It only restates the surface purpose.

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 purpose is front-loaded, which is good, but the second sentence is pure redundancy that adds no new information, so the description is not efficient for its size.

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?

No annotations, no output schema, and three undocumented parameters leave significant gaps. For a retrieval tool, the description should at least clarify the date-range and pagination mechanics, which it entirely omits.

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% for three parameters (start_date, end_date, next_token), and the description adds no meaning for any of them. next_token clearly implies pagination, but the description never explains date formats, ranges, or paging behavior, so it fails to compensate for the coverage gap.

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?

It names a concrete verb+resource ('Get optimal bedtime recommendations and sleep timing data'), which is more specific than the generic get_sleep sibling. However, the second sentence merely restates the first in different words, and there is no differentiation from the sibling get_sleep_time_by_id, so an agent cannot tell the two apart from the description alone.

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?

There is no guidance on when to use this versus alternatives. The presence of the sibling get_sleep_time_by_id suggests this is the range/list variant, but the description never states that, nor does it mention any prerequisites or when-not conditions.

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