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

Adds real context beyond the annotations: nothing is ordered or paid through the assistant, and no card or address is collected here – critical to prevent an agent from treating this as a transaction or asking for payment details. The readOnlyHint/idempotentHint annotations are consistent with this, though the description does not mention idempotency or the 24-hour quote window itself.

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 short sentences, front-loaded with the trigger ('Continue from a quote') and ending with the key guardrail. The middle clause ('the address of the page on libraryofalexandria.com where the person writes the message, sees the proof and pays') is slightly roundabout but earns its length by explaining the destination.

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, no-output-schema tool, the description says what is produced (a page address), what the user does there, and what this tool explicitly does not do (order, pay, collect card/address). Nothing an agent needs to call it correctly is missing.

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 coverage is 100% and the only parameter, quote_id, already carries its own description including the 24-hour validity rule. The description adds no syntax, format, or failure-mode detail about quote_id, so baseline 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 the action concretely: 'Continue from a quote: get the address of the page on libraryofalexandria.com where the person writes the message, sees the proof and pays' – an agent can tell this returns a URL to a hosted checkout/proof page. It does not distinguish itself from similarly-themed siblings such as quote_custom_print, get_print_options or get_cover_upload_link, so the 'create order' name could still be misread as placing an 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?

'Continue from a quote' implies a precondition (an existing quote) but never states it as a requirement or names an alternative path (e.g. quote_custom_print) for starting a new quote. Usage is inferable but not spelled out.

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