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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds meaningful behavioral details beyond that: the upstream page size is fixed, page is the only paging control, and only public catalog metadata is returned, never playable video. It could still mention the valid page range (1–1000) or pagination limits, but the core behavior is well disclosed.

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 two tightly written sentences with no wasted words. It front-loads the main purpose and then adds the key constraints (fixed page size, metadata only, no playable video) in a logical order. Every sentence earns its place.

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 tool is simple: one optional parameter and a rich output schema, so the description need not explain return values. It covers feed composition, paging behavior, and the metadata-only constraint, which is sufficient for an agent to call it correctly. The only gap is the absence of explicit when-to-use guidance, which is addressed separately under usage guidelines.

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 the baseline is 3 and the schema already documents the single 'page' parameter with its range and default. The description adds semantic value by explaining that the upstream page size is fixed and therefore 'page' is the only paging control, which clarifies why there are no other paging parameters and how the parameter behaves.

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 uses a specific verb and resource: 'Get one page of DramaBox's own "You Might Like" recommendation feed from the app API.' It also enumerates the feed contents, making the purpose unambiguous. However, it does not explicitly contrast itself with sibling feeds such as dramabox_home, dramabox_trending, or dramabox_browse, so it falls short of the sibling differentiation expected at 5.

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 explicit guidance on when to use this tool versus alternatives. The description states what the tool returns but never says 'use this when you want recommendations rather than search results, trending, or home feed' or names any sibling as an alternative. The agent must infer the use case from the name and the phrase 'You Might Like.'

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