Get popular creators

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

Annotations declare readOnlyHint=false, openWorldHint=true, idempotentHint=false, destructiveHint=false, so the safety profile is partly covered. The description adds genuinely non-redundant behavior: it consumes paid API credits, needs confirm=true, and clarifies that a read-like POST does not publish to social platforms. That is useful cost/side-effect context beyond the annotations.

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?

Front-loads what the tool does, then adds cost/confirmation caveats. Two short paragraphs with little waste; the return-field enumeration is slightly listy but justified since there is no output schema.

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?

With no output schema, the description helpfully enumerates the returned creator fields, and it discloses the credit cost and confirm requirement. Pagination behavior via the 'page' parameter is left unexplained, which is the main small gap for a 7-parameter tool.

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% and all four enums are documented in the schema, so the baseline is 3. The description restates the filter dimensions (follower range, creator/audience country) and sort keys without adding syntax or semantics the schema lacks.

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+resource ('Discovers trending and popular TikTok creators') plus its filters and sort options. It does not explicitly differentiate itself from nearby siblings like tiktok_search_users or tiktok_profile, but the 'popular/trending discovery' framing is distinctive enough to route an agent reasonably.

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?

Gives a concrete prerequisite (paid credits, requires confirm=true) which is genuine usage guidance, but never says when to prefer this over alternatives such as tiktok_search_users or tiktok_top_search. Usage is implied by the TTL of the tool rather than contrasted with siblings.

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