Set Apple Default Preference

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

Annotations are minimal (title only), so the description must convey behavior. It states a mutation ('Set') but fails to disclose side effects, permissions, reversibility, or any other behavioral traits beyond the bare action.

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 a single short sentence, concise but underspecified. It contains no fluff but sacrifices necessary detail. Front-loading is irrelevant as there is almost no content.

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 6 parameters, many siblings, and an output schema, the description is woefully incomplete. It does not clarify the context of 'scope', 'default target', or how the tool fits into the workflow.

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%, and the description adds no meaning to any of the 6 parameters. Parameters like id, kind, scope, path, account_name are left completely unexplained.

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 states the verb 'Set' and resource 'default target for a scope', but 'default target' and 'scope' are undefined. It vaguely distinguishes from sibling tools like apple_preferences_get, but lacks specificity.

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?

The description provides no guidance on when to use this tool versus alternatives. No when/when-not or sibling differentiation is given.

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