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

Goes well beyond the annotations (destructiveHint=true, openWorldHint=true) by disclosing that the reply is public immediately and visible to anyone, that it cannot be withdrawn from here, and where removal is possible (Ignix inbox). That is exactly the irreversibility context an agent needs before a destructive write.

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?

Three tight sentences: what it does, the confirmation requirement, the irreversibility, then the alternative. Front-loaded with the action and free of filler.

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 destructive public-write tool with no output schema, the description covers effect, visibility, reversibility, pre-call confirmation, and the sibling alternative. Nothing an agent needs in order to call it safely 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%, so the schema already documents reviewId, message, accountId, and the idempotencyKey retry contract. The description reinforces reviewId provenance but adds nothing about accountId or the idempotency behavior beyond what the schema states — 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?

States a specific verb and resource ('Publish the business's public reply to one review') plus where it appears ('shown under the review on Google or the network'). It also names the sibling it is not (reply_booking_review), so an agent can distinguish it without opening a schema.

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?

Explicit routing: 'For booking page reviews use reply_booking_review', plus a pointer to list_reviews for the reviewId. It also states a hard usage precondition — show the user the exact text and confirm first — which governs when this tool may be invoked.

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