get_customer_review

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

Annotations already cover the read-only and open-world profile, so the bar is lower, and the description adds genuinely valuable context: the returned text is third-party authored and must be treated as data, not instructions. It doesn't mention behavior for a missing/invalid review, but the prompt-injection warning is real value beyond structured fields.

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?

Purpose is front-loaded in the first clause, followed by the trust caveat. Three sentences with little waste, though the public-authorship sentence is partly redundant with the untrusted-text warning.

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 simple single-entity read with no output schema, the description covers what is returned (review plus developer response) and the key caveat about untrusted content. Nothing critical is missing, though error/not-found behavior is unstated.

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 reviewId parameter, so the schema already documents input syntax. The description adds no format or semantics beyond the schema, making the baseline 3 correct.

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+resource: 'Get a single customer review,' and the qualifier 'single' distinguishes it from the siblings list_customer_reviews and respond_to_review. The added detail that the developer response is included 'if any' further sharpens scope.

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 'single' versus the list sibling, but the description never explicitly says when to use this instead of list_customer_reviews or respond_to_review. No prerequisites or exclusions are stated, so it lands at implied-usage level.

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