Create Version Localization

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

Annotations indicate mutation and non-idempotence, but the description provides no additional behavioral context. Does not explain what happens on success (e.g., returns created object?), what occurs if the locale already exists, or any required permissions. The description adds little beyond the annotations.

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?

Single sentence, front-loaded with key information. However, it could be more efficient by listing all parameters or providing a clearer structure. Still, acceptable for a simple creation tool.

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 8 parameters, no output schema, and sparse annotations, the description is insufficient. It does not explain the required fields (versionId, locale), the optional fields, or the expected outcome. The agent lacks vital context for correct invocation.

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?

The description only mentions 'release notes, keywords, and promotional text' while the schema has 8 parameters including required fields like versionId and locale. With 0% schema description coverage, the description fails to explain the meaning and purpose of most parameters, leaving the agent uninformed.

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?

Clearly states the tool creates localized App Store metadata for a version, listing specific content types (release notes, keywords, promotional text). The name and title reinforce this, and it effectively distinguishes from siblings like asc_update_version_localization and asc_list_version_localizations.

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 tool vs. alternatives. Does not mention prerequisites (e.g., need an existing version), the uniqueness of locale per version, or that creation might fail if a localization for the locale already exists.

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