list_domains

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

No annotations provided, so the description carries the burden. It does add useful behavioral context through the Returns block (paginated results with total/has_more, default and max limits) and enumerates status values. However, it does not disclose auth requirements, rate limits, or anything about the side-effect profile beyond implying it is a read.

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?

Front-loaded purpose sentence, then usage, then Args and Returns sections. Every line earns its place, though the 'Args:'/'Returns:' convention is slightly verbose. No wasted filler.

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 read-only list tool with no output schema, the description covers status values, pagination behavior, and return fields (id, hostname, status, ready) plus total/has_more. It is nearly complete; missing only auth/rate-limit context, which is minor for a listing tool.

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 does: enumerates all six valid status_filter values (pending_payment, pending_dns, pending_ssl, active, failed, released) and documents limit's default (50) and max (100), which the bare schema does not.

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+resource ('List all domains provisioned through your platform account') with scope (account-level). It is clearly distinguishable from check_domain_status and list_websites.

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 states when to use it ('build dashboards or check the state of all domains'), which is clear context, but does not name alternatives like check_domain_status for single-domain checks or state when-not to use this.

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