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

Annotations already declare readOnly, idempotent, non-destructive, closed-world, so the safety profile is covered. The description usefully adds what is returned (specs, pricing, viability score, mechanical status) and clarifies overlapping content across variants, but it leaves 'mechanical-profile status' undefined and the 'layer flag' claim has no counterpart in the schema.

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 tight sentences, with the payload described first and the cross-variant relationship second. The only waste is the 'layer flag' remark, which points at a concept the schema doesn't expose.

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 single-parameter read tool with annotations covering safety and no output schema, the description does enough to convey what comes back. It falls short on the one input parameter and on what 'mechanical-profile status' actually contains.

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?

There is one required parameter (robot_id) with 0% schema description coverage, and the description says nothing about it - no identifier format, source, or whether it's an internal or vendor ID. The one piece of semantic guidance an agent needs here is absent.

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 resource and payload: the commercial profile of one robot (specs, pricing, viability score) plus mechanical-profile status. It also distinguishes itself from the other get_robot variants, though the reference to a 'layer flag' is confusing since no such parameter exists in the schema.

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 note that 'commercial fields are identical in all three get_robot variants' implies the choice hinges on which layer's status you need, but it never explicitly says 'use this when you need mechanical status; use hardware_get_robot or software_get_robot otherwise.' Usage is inferable rather than stated.

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