app_store_version_experiments_v2_create_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, and it discloses nothing: no auth/permission requirements, no side effects, no note on what the JSON:API envelope must contain or what happens on conflicts. For a create/mutation endpoint with zero annotation coverage this is a serious 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, but the path is duplicated verbatim inside parentheses, which is pure waste, and the remaining content is a bare pointer. Roughly half the text fails the 'every sentence earns its place' test.

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 mutation tool with a nested JSON:API body, no annotations, and no output schema, the description is far too thin: it explains nothing about the experiment resource, the envelope contract, or the result. Pointing at an external OpenAPI component is not enough to call it complete.

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% (the single body parameter is documented as components.schemas.AppStoreVersionExperimentV2CreateRequest), so the structured field does the heavy lifting and the baseline is 3. The description merely echoes the same schema pointer without adding syntax, required-field or envelope-shape detail beyond it.

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 restates the HTTP method and path (POST /v2/appStoreVersionExperiments), which is a tautology of the tool name app_store_version_experiments_v2_create_instance. It identifies a verb and resource in the most literal, mechanical way and gives no sense of what an app store version experiment actually is or what creating one accomplishes. Nothing here distinguishes it from its v1 sibling app_store_version_experiments_create_instance.

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 when-to-use guidance, no prerequisites, and no mention of the v1 vs v2 alternative that exists in the sibling list. The agent is left to infer entirely from the name.

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