get_movies_played_by_period

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

Annotations already mark the operation as read-only, idempotent, and non-destructive. The description adds useful behavioral context by explaining pagination defaults, limit clamping, and the ignore filters, which goes beyond what the annotations and bare schema provide.

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 opens with a clear one-line summary and then uses compact bullet-style parameter details. The pagination paragraph is slightly verbose but conveys important clamping/default behavior, so the structure is efficient overall.

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?

The required period parameter is not given any concrete value domain, and extended information is undefined, so an agent cannot confidently construct a request. The output schema covers return structure, but the missing period semantics and lack of guidance about similar endpoints leave important gaps.

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?

All seven parameters are named with one-line explanations, which is valuable since the schema provides no parameter descriptions. However, 'period' is only described as a path parameter and 'extended' as 'extended information,' leaving the agent without concrete allowed values or meaning.

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 begins with a specific verb and resource: 'Get the most played movies.' The endpoint path narrows this to a period, which helps differentiate it from related sibling endpoints such as get_movies_collected_by_period and get_movies_watched_by_period, though it does not explicitly state those differences.

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 about when to use this endpoint versus the many similar sibling tools like get_movies_watched_by_period or get_movies_played_by_period's show counterpart. The intended use is only implied by the summary, and the meaning of 'played' versus 'watched' is not clarified.

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