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

Annotations already cover readOnlyHint, idempotentHint, and destructiveHint, so the description doesn't need to restate safety. It adds valuable behavioral context by defining the isStub field's semantics (crawler placeholder vs. claimed real person) and listing the exact fields returned in each creator card. A small gap is that it doesn't mention ordering by popularity, despite 'hot' in the title.

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 compact and well-structured, with clear sections for 'when to use' and 'follow-up drill-down'. Every sentence adds value: trigger condition, return card fields, the important isStub clarification, and the downstream get_creator suggestion. No filler or redundant restatement of the name/title.

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?

For a simple read-only list tool with one optional parameter and no output schema, the description covers the essential context: when to invoke it, what the response contains, and what to do next (get_creator). It is slightly incomplete in not specifying result ordering or pagination behavior beyond the schema's limit default, but these are minor given the tool's simplicity.

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?

The input schema fully documents the only parameter 'limit' with type, range, and default value, so schema coverage is 100%. The description adds no extra meaning for the limit parameter, which is acceptable; baseline 3 is appropriate when the schema handles parameter semantics completely.

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 clearly states the tool's action: returning a list of hot creators ('returns creator cards') with a specific trigger condition ('when users want to see who runs one-person companies'). The scope is differentiated from general people search by the 'hot creator' and 'one-person company' framing, but it does not explicitly contrast with siblings like list_talent, so it misses full distinction.

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 an explicit 'when to use' condition: when users want to discover well-known solo-company creators. It also suggests a follow-up action (get_creator) for drill-down, which helps agent routing. However, it does not mention when NOT to use this tool or name alternative listing/search tools such as search_people or list_talent, so a fully explicit comparison is absent.

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