apple_register_bundle_id

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 notes that the operation is supported by the API and identifies the next workflow step, but gives no details about permissions, side effects, duplicate handling, or error behavior for this mutating registration call.

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?

The description is short and front-loaded with the core action, followed by workflow context and platform values. It contains no wasted sentences, though the all-caps emphasis on 'IS' is slightly informal.

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 mutating registration tool with no annotations and 0% schema parameter coverage, the description is incomplete: it omits auth/permission requirements, identifier format expectations, and failure modes. It does cover workflow placement and notes an output schema exists, so return values need not be described.

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 0%, so the description must compensate. It only gives the possible values for 'platform' (IOS, MAC_OS, UNIVERSAL); it says nothing about the required 'identifier' or 'name' parameters, leaving two of three parameters without added meaning.

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 ('Register') and resource ('new Bundle ID in the Apple Developer portal'), making the action unambiguous. It also distinguishes itself from the app-record creation step by naming apple_create_app_form as the follow-up tool.

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?

Explicitly describes when to use it: as the first step for a new app. It also points to the next tool (apple_create_app_form) for creating the app record itself, giving clear workflow context. It does not state when not to use it or any prerequisites such as authentication.

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