list_ad_clients

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

No annotations are present, so the description carries the burden of signaling behavior. The verb 'List' clearly implies a read-only operation and the parenthetical clarifies the returned entities, but the description does not mention auth requirements, failure modes, or response shape.

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?

One short, front-loaded sentence with no redundant words. Every phrase adds relevant meaning: action, resource, disambiguation, and scope.

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?

The core operation is clear and the input schema covers the optional account parameter. However, with no annotations, no output schema, and no usage guidance relative to the many sibling tools, the description leaves an agent to infer when this tool is the right choice and what the response contains.

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 coverage is 100%, so the baseline of 3 applies. The description does not add parameter semantics beyond the schema, though it does consistently refer to the 'account' parameter.

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 ('List'), a specific resource ('ad clients'), and a scope ('for an account'). The parenthetical 'publisher IDs' disambiguates the resource from sibling tools like list_ad_units and list_accounts.

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 guidance on when to prefer this tool over its siblings, and no exclusions or alternatives are mentioned. The only contextual hint is 'for an account,' which does not help an agent choose among list_accounts, list_ad_units, or list_ad_clients.

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