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

Annotations already cover safety and idempotency, but the description adds substantive context beyond them: the outcome is delivered/held/failed rather than a confirmed booking, and the consent_version/verification_code inputs encode an authorization step. The idempotency sentence largely restates idempotentHint=true.

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?

Three tight sentences, front-loaded with the core action and the outcome disclaimer before the retry rule. Only the final idempotency sentence is arguably redundant with the annotation.

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 an output schema present, return values need minimal explanation, yet the description still summarizes the possible outcomes usefully. The main gap is not stating where action_id comes from (presumably start_dental_request), which an agent must infer.

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 only 17%, so the description must carry the load. It explains verification_code ('the 6-digit code Xona emailed the patient') and consent_version ('the consent_text the patient agreed to'), but action_id, service_category, and note are left undocumented in both schema and description.

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 (send) and resource (the started dental request to the clinic), and the phrase 'the started request' implies it operates on something created by start_dental_request, distinguishing it from that sibling. It is clear, though it does not name the sibling explicitly.

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?

Usage is implied by 'the started request' (i.e., call this after start_dental_request has produced an action_id), and the retry rule is stated. However, no alternative tool is named and there is no explicit when-not guidance versus confirm_xona_booking or hold_xona_booking_slot.

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