Update Version Localization

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

Discloses behavioral traits beyond annotations: partial updates, state-dependent field editability, error conditions for non-editable fields and missing fields. Annotations only indicate write operation, no 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?

Well-structured: purpose, partial update note, state constraints, args list, requirement, returns, error handling. Each section is concise and informative. No fluff.

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 the tool has 7 parameters, no output schema, and annotations are minimal, the description is comprehensive. Covers field behavior, return structure, error cases, and references related tool (asc_list_version_localizations).

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 coverage is 100%, so baseline is 3. Description adds value by noting promotionalText can be updated anytime vs other fields, and requiring at least one optional field. Also provides return format and error handling, enhancing schema info.

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 title and description clearly state 'Update per-locale App Store version metadata.' The verb 'update' and resource 'version localization' are specific. It distinguishes from siblings by focusing on version localizations, not the version itself or other entities.

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?

Describes partial update behavior and state constraints for fields (promotionalText always editable, others require editable state). States requirement for at least one optional field. However, does not explicitly compare to alternative tools like asc_update_app_store_version.

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