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

No annotations are provided, so the description carries the full behavioral burden. It discloses one useful constraint ('one rating per operator') but omits whether a duplicate rating errors or updates, what permissions are needed, whether the rating is reversible, or what the effect on the skill is, leaving critical mutation behavior unexplained.

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?

A single, front-loaded sentence that conveys the action, scale, and key constraint with zero filler. Every word 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 mutation tool with no annotations and no output schema, the description is too thin. It omits when to choose this over sibling rating/voting tools, what happens on repeat ratings, and any behavioral or auth context beyond the minimal schema hints.

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 75%, so the schema already documents review, api_key, and skill_id basics. The description adds the 1-5 range for the rating parameter and the one-per-operator constraint, which is useful, but it does not further clarify skill_id format, review semantics, or auth beyond what the schema provides.

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 and resource ('Rate a skill') and clarifies the scale (1-5) and the one-rating-per-operator constraint. However, it does not explicitly differentiate from siblings like vote_lesson or review_job, so it falls short of the 5 benchmark for sibling differentiation.

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?

Implies usage context by saying 'a skill you used,' which sets a precondition, and adds the 'one rating per operator' limit. It does not explicitly say when not to use it, nor does it name alternative tools such as vote_lesson or review_job, leaving usage guidance only implied.

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