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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds a genuinely useful behavioral constraint not present in the structured data: delivery to Norway only, plus the concrete enumerations of infill percentages and materials. It does not, however, mention output format or caching/static-ness, which would round this out.

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 dense sentence is front-loaded with the tool's identity before the enumeration, and the geographic restriction is placed last as a qualifier. Every listed item earns its place by telling the agent what data is retrievable, though the run-on enumeration is slightly heavy for one sentence.

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, the description need not document return values, yet it helpfully previews the returned content for selection purposes. Nothing critical is missing for a zero-parameter read-only lookup; only explicit sibling routing would improve it.

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 there is nothing to disambiguate and the baseline of 4 applies. The description correctly avoids inventing parameter talk.

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 (returns FormNord printing service details) and enumerates the concrete domains covered: materials, infill levels, settings, max size, pricing model, shipping and delivery time. An agent can immediately distinguish this informational lookup from the transactional siblings create_order, create_upload_link and get_print_quote.

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 informational nature of the tool is implied, but there is no explicit when-to-use guidance or routing against the sibling tools. It never says, for example, to call this before get_print_quote to learn the available materials or infill choices, so the agent must infer the sequencing.

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