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

The description openly says it changes an existing review and is consistent with the destructiveHint annotation. It adds useful specifics about which fields can be changed, though it does not describe overwrite behavior or what happens if the review does not exist. With annotations already carrying the destructive signal, this is adequate but not rich.

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 sentence that front-loads the action and resource, specifies the mutable fields, and states how to identify the target review. There is no filler or redundancy.

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 three-parameter update with full schema coverage and safety-relevant annotations, the description is nearly complete. The only gap is not explicitly stating that the review must already exist and belong to the user, though 'your review' implies this.

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 schema already documents lounge_slug, rating, and content. The description reinforces lounge_slug as the review identifier and the optionality of the other fields, but adds no format or behavior details beyond the schema.

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 ('Update') and resource ('your review'), and names the changeable contents (rating and/or text) plus the identifier (lounge_slug). This makes it clearly distinct from sibling tools like lounge_write_review and lounge_delete_review.

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?

The intended use is implied: modify an existing review rather than create or delete one. However, the description does not explicitly state when to prefer this over lounge_write_review or any preconditions such as requiring the user to already own a review.

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