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

The annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true. Beyond that, the description usefully discloses that the tool returns reviews regardless of moderation status and includes merchant PII fields such as reviewer email, Shopify customer id, and order id.

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?

The description is compact and front-loaded: it first states the resource and scope, then the key returned data, then the API path. Every sentence contributes useful selection or interpretation context.

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 helpfully specifies moderation-status behavior and several returned reviewer/merchant fields. It does not enumerate all review content fields, but it is sufficient for correctly invoking a simple one-parameter read tool whose safety profile is covered by annotations.

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?

There is only one parameter and schema description coverage is 100%, so the schema already fully documents review_id. The description mentions lookup 'by id' but adds no syntax or format detail beyond the schema, making the baseline score appropriate.

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 states a specific verb and resource: retrieve one store-level review by id. The store-level scope and singular 'one' distinguish it clearly from list tools and product-review tools without needing to open the schemas.

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?

It clearly establishes the retrieval context: use when you have a review id and need that single store-level review, including moderated reviews. It does not explicitly name alternatives such as loox_list_store_reviews or loox_get_product_review, but the context is clear enough for selection.

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