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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety profile is fully covered by structured data. The description adds nothing beyond that: no ranking semantics, no mention of the default page_size of 1000, and no note that results are date-range bounded.

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?

A single sentence with no filler or redundancy, and the core action is front-loaded. It is efficient but too thin to earn a 5, since brevity here borders on under-specification.

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?

An output schema exists, so return values need not be described, but for a 5-parameter analytics tool with two required date parameters the description omits the date-range requirement, ranking basis, and pagination behavior. It is not complete enough for an agent to call it confidently without opening the schema.

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%, so every parameter is already documented with format, defaults, and examples. The description adds no parameter-level meaning (e.g., what collection_id scopes or how page interacts with page_size), so the baseline 3 for high-coverage schemas applies.

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?

States a specific verb and resource ('lists top streamed assets'), so the basic purpose is recoverable. However, it does not explain what 'top' ranks by (views, watch time, etc.) and doesn't distinguish it from the many analytics siblings such as asset_analytics, analytics_breakdown_data, or retrieve_analytics that also surface asset performance. 'Video collection' is also vague against a param described as a Gumlet workspace ID.

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 indication of when to use this over siblings like list_assets or asset_analytics, and no mention that a start_at/end_at range is required. The agent is left to infer all routing decisions from the name alone.

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