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

Annotations already declare readOnlyHint=true, and the description usefully discloses the return payload (VAT-inclusive totals, amount due today, delivery time, site link) in the absence of an output schema. It does not, however, resolve the tension between the name "create_quote" and readOnlyHint by stating that nothing is persisted or quoted — a meaningful omission for a tool whose verb suggests creation.

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 with no filler, and the core function is front-loaded before the return-value summary. It packs the calculation scope and the return contents into a tight block.

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 7-parameter tool with a nested addons object and no output schema, the description covers the return shape (totals, due today, delivery, link) which the schema cannot. The remaining gap is the absence of any prerequisite or sequencing note relative to get_price.

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 every parameter, enum, and default is already documented in the structured schema. The description only restates the parameter groups and adds no syntax or constraint detail beyond that, so the 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?

The description names a specific verb and resource: it prices a configuration (product, add-ons, care plan) and states the outputs it computes. An agent can tell this is a pricing calculator rather than a catalog lookup. However, it never names or contrasts the siblings get_price and start_checkout, so differentiation must be inferred.

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?

Usage is implied by "Price a configuration ... exactly as the website does" and by the returned totals, but there is no explicit when-to-use or when-not, and no routing to get_price or start_checkout. The guidance that add-on ids come from get_price lives in the schema, not the description.

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