reply_to_review

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

Annotations already declare destructiveHint=true, openWorldHint=true and idempotentHint=false, so the safety profile is partly covered. The description adds genuinely useful context the annotations lack: the mutation affects PUBLIC App Store content (reputational exposure) and the operation is upsert-style ('create or replace'), meaning any existing developer response is overwritten. There is a mild tension between 'replace' semantics and idempotentHint=false, but not a clear contradiction.

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 with the mutation warning front-loaded, followed by the operation semantics. Nothing redundant and no 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 two-parameter mutation with annotations and no output schema, the essential shape is conveyed, but gaps remain: whether an existing response is destroyed, whether the caller needs specific credentials, and what the parameters mean. Adequate, not complete.

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 0%, so the description carries the burden, yet it never mentions reviewId or responseBody. Only indirect inference is available (the addressed review and the response text). It also does not explain the notable 5970-character response body limit or the 200-character id constraint.

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 concrete verb pair ('create or replace') and a concrete resource ('the developer response to a customer review'), which clearly separates it from read-side siblings like get_review_response and list_reviews. It stops short of naming those siblings, so it is clear but not fully differentiated.

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: you respond to a review when you want a developer response published. There is no explicit when-to-use versus get_review_response, no statement about whether an existing response must exist first, and no permission or prerequisite guidance. The 'MUTATES public App Store content' framing hints at caution but gives no decision rule.

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