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 covered. The description adds value beyond that by enumerating the returned content (general info, shipping, customer, totals, items, notes) and noting that both open and processed orders are reachable, which matters given there is no output schema.

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?

A single sentence with no filler, front-loading the resource and the identifier constraint, followed by the returned field categories. Every clause earns its place.

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?

For a one-parameter read tool with no output schema, the description adequately covers what is returned and what identifier form is needed. It could be slightly stronger by noting behavior on a missing/invalid id, but nothing essential to calling it correctly is absent.

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% for the single order_id parameter, and its GUID pattern is already encoded in the schema. The description's '(a GUID)' and 'OrderId / pkOrderId' alignment add only marginal clarification, so the baseline of 3 applies.

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 (get) and resource (one order), and scopes it precisely: retrievable by order id GUID, covering both open and processed orders. This implicitly separates it from siblings like linnworks_find_order_by_number and linnworks_search_processed_orders, though no sibling is named 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?

The 'by its order id (a GUID)' phrasing implies when this tool is the right choice (you already hold the id), but it never says when NOT to use it or names the alternative lookup tools (find_order_by_number, find_orders_by_reference). Usage is inferable rather than stated.

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