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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is fully covered by structured data. The description adds essentially nothing beyond that: no pagination behavior, no note on default ordering, no indication of how many orders 'recent' covers. It neither contradicts the annotations nor enriches them.

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?

It is a single short sentence with no filler, which is structurally clean. But brevity here is closer to under-specification than to disciplined conciseness — there is no content to front-load, and the one qualifier it does carry ('recent') is the vaguest part.

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 zero required parameters, 100% schema coverage and full annotation coverage, the mechanical burden on the description is low, and 'with their status' gives a faint hint at the return shape. Still, for a paginated, filterable list endpoint with no output schema, some note on default ordering or result scope would round it out.

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%, so page, status, per_page and api_key — including defaults, max, and the auth-header exemption — are all documented in the schema itself. The description contributes no additional parameter meaning, which is the expected baseline when the schema does the heavy lifting.

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?

The description names the resource (orders) and a qualifier (recent, with their status), so an agent can infer it is a read/list operation. However it never states a verb explicitly, and 'recent' is left undefined with no time window, so scope is vague. No sibling is order-related, so differentiation is largely moot, but the definition still reads closer to a restatement of the title than a precise statement of what is returned.

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 when-to-use guidance, no prerequisites, and no mention of alternatives. The only contextual hint is the word 'recent', which a reader must interpret themselves. For a listing tool with filtering and pagination options, that is a real gap.

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