list_sync_progress_up_next_nitro

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds the endpoint path and documents pagination clamping behavior ('higher values are clamped rather than rejected'), which is useful behavioral context beyond the schema. However, it doesn't disclose what the response contains or whether the endpoint requires authentication, though the annotations carry most of the safety burden.

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 mostly a parameter list with the endpoint path at the top. The watchnow section is verbose but informative. The 'Query parameter' boilerplate for eight parameters is repetitive and wastes space without adding value. The structure is functional but not front-loaded with a clear one-sentence purpose; it starts with the vague 'Get up next nitro.'

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?

Given the tool has 15 optional parameters, an output schema, and read-only annotations, the description covers pagination and watchnow semantics but leaves the core meaning of 'up next nitro' unexplained. An agent would struggle to know what this endpoint returns or when to choose it over list_sync_progress_up_next. The output schema exists, so return values are partially covered, but the missing purpose and usage context are significant 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?

Schema description coverage is 0%, so the description must compensate. It does add meaning for several parameters: page and limit get pagination semantics, watchnow gets a detailed list of allowed values, and intent gets a brief explanation. However, many parameters (genres, subgenres, years, ratings, start_date, end_date, runtimes, countries, certifications, sort_by, sort_how) are only labeled 'Query parameter' or 'The field to sort by', which adds little beyond the schema's property names. The watchnow documentation is genuinely helpful, but the rest is thin.

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 'Get up next nitro' and includes the endpoint path, which identifies the resource. However, it doesn't explain what 'up next nitro' means, what the returned items represent, or how it differs from the sibling list_sync_progress_up_next. The verb 'Get' is clear, but the resource is opaque and the sibling differentiation is absent.

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 provides no guidance on when to use this tool versus alternatives. It does not mention list_sync_progress_up_next or any other sibling, nor does it state the intended use case (e.g., retrieving a user's up-next queue with filtering). The parameter list implies filtering and sorting, but no explicit when-to-use guidance is given.

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