apple_get_win_back_offer

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

With no annotations, the description carries the full burden of behavioral disclosure. "Get" implies a safe read, but nothing is said about error behavior for an unknown offerId, whether the response includes offer state or eligibility data, or any rate/permission constraints — for a bare detail-fetch this is thin.

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?

One short, front-loaded sentence with zero filler. It is arguably too terse rather than too long, but there is no structural problem.

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?

No annotations, no output schema, and no statement of what "details" comprise or where the offerId comes from. For a fetch tool in a large Apple/Google sibling set, the definition leaves too much for the agent to guess.

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% and the single offerId parameter is documented in-schema as "Win-Back Offer ID". The description adds nothing beyond that, so 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 ("Get details of a win-back offer"), which clearly pairs with the sibling apple_list_win_back_offers as the singular fetch. It does not explicitly call out that distinction, but the name and description together are unambiguous about what is retrieved.

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?

No guidance on when to use this versus apple_list_win_back_offers, nor any prerequisite such as needing an offerId obtained from the list call. The agent must infer the list-then-get workflow entirely on its own.

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