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 does disclose one useful trait — only 'active' robots are returned — but says nothing about pagination, result-size limits, ordering, or permissions for what is clearly a list-returning read.

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?

Two short sentences with the action front-loaded. The second sentence largely restates the first ('Get all robots in a category' / 'Returns the full list of active robots in that category'), consuming space without adding much.

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 must describe returns; it does so only loosely ('specs and prices', 'full list of active robots'). For a list endpoint, missing details on pagination, ordering, and empty-result behavior leave real gaps.

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 the slug examples (humanoid, cleaning, lawn, aerial, etc.) are already enumerated in the schema, so the description cannot add much. It adds no format or validation detail beyond what the schema states, making the baseline 3 appropriate.

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 ('Get all robots in a specific category') plus the payload ('with specs and prices'), which is enough to separate it from get_robot (single robot) and get_component_category (components). It does not explicitly contrast with search_robots, so it stops short of a 5.

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?

There is no when-to-use guidance and no mention of the obvious alternative, search_robots. The agent must infer that this is the category-browsing path rather than a keyword search, and there is no when-not condition at all.

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