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

Annotations already declare readOnlyHint=true, destructiveHint=false and a closed world, so the safety profile is covered. The description adds real value beyond them: it scopes results to 'this agent's' orders, specifies newest-first ordering, and enumerates the returned fields, which matters since there is no output schema. It stops short of saying how many orders are returned or whether the list is truncated.

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 sentences, no filler. The purpose and returned fields come first, and the routing guidance to get_order_status/leave_review is front-loaded where an agent will act on it.

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 correctly compensates by listing the fields returned, and annotations carry the safety profile. The remaining gap is that the agent cannot tell how many orders come back or whether the list is bounded, which matters for a no-parameter list tool.

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?

The tool takes zero parameters, so the baseline of 4 applies; there is no parameter semantics for the description to clarify. Note the description's implicit filtering (this agent's orders, recency) is behavioral scope rather than a parameter, and the agent cannot control it.

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 ('List this agent's recent UFP orders'), adds scope (newest first) and enumerates the exact fields returned (order id, item, vendor, status, total, ETA, created date). This clearly separates it from sibling get_order_status, which returns a single order.

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?

Explicitly states the use case — resolving vague references like 'my sticker order' to a concrete order_id — and names the two downstream tools it feeds (get_order_status, leave_review). The when-to-use condition is concrete and testable.

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