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 useful scope information by enumerating what comes back (delivery time, payment terms, add-ons with prices), but says nothing about whether these are list vs quoted prices, currency handling of add-ons, or completeness guarantees.

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 tightly-packed sentence with zero filler, front-loaded with 'Price'. It is a noun-phrase fragment rather than a statement of action, which slightly weakens orientation but costs no length.

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 no output schema, the description is the only place the return contents are disclosed, and it does enumerate them (price, delivery time, payment terms, inclusions, add-ons). For a two-parameter read-only lookup with full annotation coverage, that is close to sufficient; only the list-vs-quote distinction 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 description coverage is 100% and both parameters are fully enumerated, so the schema carries the load. The description only echoes the 'one product' and 'prices' aspects, adding no extra semantics such as what currency applies to add-on prices or whether currency affects availability.

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 precisely — price, delivery time, payment terms, inclusions and priced add-ons for one product — which is far more specific than the title's 'get a product price'. It implicitly separates itself from create_quote/start_checkout by being a pure information lookup, though it never says so 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?

Usage is only implied: an agent can infer this is the read-side pricing lookup versus the mutating siblings (create_quote, start_checkout). There is no explicit when-to-use/when-not guidance, no mention of when to prefer list_services, and no stated prerequisites.

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