Create Allowed Domain

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

Annotations already declare destructiveHint=true, openWorldHint=true, and non-idempotency, so the bar is lower, yet the description still adds the permission scope required, the confirm=true gate, and potential side effects ('share access, notify people or incur provider charges'). The side-effect phrasing is somewhat boilerplate and does not explain what this specific mutation impacts.

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?

Purpose is front-loaded in the first sentence, followed by structured permission notes. The permission section is somewhat verbose for what it conveys, but overall the layout is clean and readable.

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 5 parameters (including a nested payload), zero required params at the top level, no output schema, and the presence of annotations, the description covers permissions and confirmation adequately. It could clarify that a domain is effectively mandatory despite zero required top-level params, but nothing essential is missing.

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%, so the baseline is 3. The description adds a small amount of meaning by tying confirm=true to the mutation, but says nothing about the domain, account, or payload/payload_file parameters beyond what the schema already documents.

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 and resource ('Creates an allowed domain for the account'), which cleanly distinguishes it from its siblings get_allowed_domain, list_allowed_domains, and delete_allowed_domain. An agent can identify the action without opening the schema.

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?

Provides prerequisite context (required token permissions and the confirm=true requirement), but never states when to choose this tool over alternatives or any when-not-to-use conditions. Usage is implied rather than specified.

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