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

No annotations are provided, so the description carries full burden. It discloses the community benefit but omits behavioral traits like idempotency (can a skill be re-rated?), authentication needs, or effects on existing ratings.

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 sentence that communicates core purpose without waste. It is front-loaded and 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?

For a simple 3-parameter tool with 100% schema coverage and no output schema, the description is minimally adequate. However, it could be more helpful by noting that the rating is aggregated or that the star value is restricted to 1-5 (already in schema), or by clarifying if the review is optional.

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 coverage is 100%, so baseline is 3. The description adds no additional meaning beyond the schema fields; 'slug', 'stars', and 'review' are adequately described in the schema, and the description merely restates the concept of rating.

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 'Rate a skill after using it. Helps the community discover the best skills.' clearly identifies the action (rate) and purpose (community discovery). It distinguishes from sibling tools like 'pin' or 'search', though could be more specific about what 'rate' entails.

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 implies use after using a skill, but provides no explicit when-to-use or when-not-to-use guidance relative to siblings. No alternatives are mentioned, leaving the agent to infer context.

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