subscription_app_store_review_screenshots_update_instance

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

No annotations are present, so the description carries the full behavioral burden. It implies a mutation via PATCH and points to the OpenAPI request schema, but says nothing about required permissions, whether the update is idempotent, what happens to omitted fields, or any auth/rate-limit considerations.

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 short and front-loads the endpoint, but it redundantly repeats the identical PATCH path twice in parentheses, which is wasted space in an otherwise one-sentence definition. The body-shape pointer is useful but the duplication detracts from otherwise tight structure.

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?

Given a nested, opaque body object (additionalProperties) with no output schema and no annotations, the description at least redirects the agent to the canonical OpenAPI request schema, which is the main thing it can convey. However, it gives no sense of what a screenshot update entails (file/checksum expectations) or what the response returns, leaving the definition minimally sufficient for a complex mutation.

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%, with both the id and body parameters already documented in the schema. The description only repeats the body-shape pointer that the schema itself already contains, adding no new syntax or semantic detail, so the baseline of 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?

The description states the HTTP method and resource path (PATCH subscriptionAppStoreReviewScreenshots), which unambiguously identifies a partial update of a subscription App Store review screenshot resource. It distinguishes itself from sibling create/get/delete operations through the PATCH verb, though it never explains the resource in plain language or calls out siblings explicitly.

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 create/get/delete variants, and no prerequisites or conditions are provided. The reader must infer usage entirely from the HTTP method.

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