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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, openWorldHint=false, so the safety profile is covered structurally. The description adds genuinely non-obvious context beyond that: it discloses the presence of a `narrative` field that carries the answer, the inclusion of the last send date and askable orders' purchase dates, and the fact that non-sent requests come with reasons. It does not mention any size/limit behavior, hence not a 5.

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?

Front-loads what the tool returns, then usage triggers, then the routing alternative — a sensible order with no filler. The closing fragment 'Its `narrative` is the answer' is slightly cryptic and the run-on enumeration of four returned items is dense, keeping it short of a 5.

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?

There is no output schema, so the description carries the full burden of describing returns — and it does, listing counts, date ranges, askable orders, failure reasons, automation status, and the narrative field. An agent can decide whether to call it and interpret the result without opening anything else.

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 single optional `marketplace_id` is documented in the schema itself, so the baseline is 3. The description only gestures at account-level scope ('on the connected account') and never mentions the marketplace filter, adding no meaning beyond the schema.

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 review-request solicitations on the connected account) and enumerates the exact contents returned: counts sent in last 30 days and total, askable orders, failure reasons, and automation status. It also explicitly distinguishes itself from the send-path sibling by naming draft_review_requests.

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?

Gives three concrete trigger phrases ('did my buyers get review requests', 'how many review requests did I send', 'can I ask for more reviews') and names the alternative tool plus the condition that selects it ('To send, draft_review_requests'). When-to-use and the alternative route are both explicit.

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