in_app_purchase_localizations_update_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. It reveals almost nothing: PATCH implies a partial update, and it references an OpenAPI request schema, but it does not state permission requirements, what fields are mutated, partial-vs-full replacement semantics, or side effects. For a mutation tool with zero annotation coverage this is a substantial gap.

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 and front-loads the endpoint, but the parenthetical repeats the identical PATCH path verbatim, which is pure waste. The body reference is useful but the duplication undercuts the brevity.

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 tool with a nested JSON:API body object, no output schema, and no annotations, the description does far too little. It defers the entire request envelope to an external OpenAPI schema the agent may not have, and gives no guidance on JSON:API structure or required fields.

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 both the id and body parameters (including the InAppPurchaseLocalizationUpdateRequest shape). The description merely repeats the schema reference and adds no field-level or format meaning, so the 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?

The description is essentially a raw endpoint restatement: 'PATCH /v1/inAppPurchaseLocalizations/{id}', repeated verbatim in parentheses. While the verb (PATCH) and resource (inAppPurchaseLocalizations) are identifiable, there is no plain-language statement of what is actually being updated and no differentiation from the many sibling 'update_instance' tools. It reads as autogenerated routing metadata rather than a purpose.

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 indication of when to use this tool versus alternatives (e.g., in_app_purchase_localizations_v2_update_instance, create, or delete). No prerequisites, no context about which localization record to target.

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