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

The annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds genuinely new context: that access is owner-scoped (an authorization constraint) and that the modeled-sphere validation carried by the artifact is not a physical safety certification or actuation permission. It says nothing about error cases, artifact availability, or expiry, so the added value is real but limited.

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 compact sentences with the operation stated first and the caveat second, so nothing is buried. The safety disclaimer is arguably boilerplate but is domain-relevant and short enough not to waste space.

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?

An output schema exists, so return-value documentation is not required, and the safety caveat covers the main domain risk. Still missing is anything about the job_id input, when an artifact is available versus still pending, or how this differs from the sibling result/receipt/status reads.

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 0% and the single parameter job_id has no description in the schema; the description does not mention it at all, leaving its format, provenance, and constraints (minLength 1, maxLength 64) entirely to the raw schema. With one undocumented parameter, the description should have compensated and does not.

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 ("Read ... motion artifact") plus an access scope ("owner-scoped"), which tells the agent this returns a stored artifact rather than a live status. It does not, however, distinguish the artifact from near-neighbours like get_cloud_motion_result or get_cloud_motion_receipt, so the agent must infer the difference from the names alone.

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 statement of when to call this instead of get_cloud_motion_result, get_cloud_motion_receipt, or get_cloud_motion_status. The only guidance offered is a domain disclaimer about validation not being certification, which does not help the agent choose between tools.

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