app_store_review_attachments_create_instance

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

No annotations are provided, so the description carries the full behavioral burden for a write (POST) operation. It discloses nothing about side effects, required authentication/scope, whether the attachment requires prior upload of asset data, or what the operation returns — only where to find the body schema.

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?

It is short but wasteful: the endpoint is repeated verbatim in parentheses, and the one useful pointer (the OpenAPI schema name) is buried in a run-on sentence. It is under-specified rather than genuinely concise.

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 mutation tool with no annotations, no output schema, and a nested free-form body object referencing an external component, the description is far too thin. An agent cannot determine prerequisites, the meaning of the JSON:API envelope, or success behavior from this text alone.

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 a single parameter with 100% schema description coverage, so the schema already documents the body. The description merely points to the same components.schemas.AppStoreReviewAttachmentCreateRequest reference the schema already cites, adding no new meaning. Per the high-coverage baseline, 3 is 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 essentially restates the HTTP method and path already implied by the tool name, with the parenthetical duplication '(POST /v1/appStoreReviewAttachments)' adding nothing. It never states in domain terms what the tool does (create an App Store review attachment) or how it differs from the sibling update/get/delete attachment tools.

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?

There is no guidance on when to use this tool versus the sibling app_store_review_attachments_update_instance, get_instance, or delete_instance, nor any prerequisite (e.g., needing a parent review detail ID). The agent is left to infer usage entirely from the name.

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