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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so safety is covered by structured data. The description adds nothing beyond that: no note on upstream data latency, quota/credits, required auth or region coverage, and no indication of what the response looks like despite there being no output schema.

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?

One fragment with no waste, but it is under-specified rather than concise — the single 'sentence' carries no information beyond the tool name and title. There is no front-loaded statement of purpose, scope, or return content.

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?

A seven-parameter read tool with no output schema needs the description to say what a creator detail payload covers (metrics, audience, GMV, etc.), yet nothing is provided. Given several near-duplicate creator tools in the catalog, an agent has no basis to select this one over its siblings.

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%, with all seven parameters (creatorId, region, shop_id, currency, language, dateRange, category_ids) documented inline including examples. The description adds no parameter meaning at all, but with full schema coverage the baseline of 3 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?

The description restates the title verbatim ('creator/detail API') without saying in plain language what the tool returns or what a 'creator detail' contains. It conveys a resource (TikTok creator) but no verb beyond the generic 'detail', and it does not distinguish itself from the many adjacent siblings (nexscope_data_kd_creator_rank, nexscope_chuhaijiang_tiktok_creator_detail, nexscope_tiktok_creator_analytics).

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 tool versus nexscope_data_kd_creator_rank, nexscope_chuhaijiang_tiktok_creator_detail, or nexscope_tiktok_creator_analytics, all of which appear adjacent in the catalog. No preconditions, no lookup path (e.g. get creatorId from a search or rank tool), no exclusions.

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