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

With no annotations, the description must disclose behavioral traits but only mentions 'public' and 'max 20'. It doesn't explain pagination mechanics, result ordering, rate limits, or return structure. This leaves significant behavioral unknowns.

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 a single, front-loaded sentence with no wasted words. However, its brevity comes at the cost of critical information, making it efficient but not necessarily appropriate.

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?

No output schema or annotations are present, and the description doesn't specify the return format, pagination details, or ordering. For a list tool with 3 parameters and sibling tools, this is insufficient context.

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 schema covers page and cursor descriptions, but per_page has no description. The description's 'max 20' simply repeats the schema's per_page maximum, adding no new meaning. No additional detail on parameter usage is provided.

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 it browses the public creator directory, using a specific verb and resource. It distinguishes from sibling tools like get_user and search_content by focusing on the directory list. However, 'by follower count' is somewhat ambiguous as to whether it sorts or filters.

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?

No guidance is provided on when to use this tool versus alternatives like search_content or get_user. The description gives context but no exclusions or explicit alternatives.

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