zernio_create_ad

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

With no annotations, the description should disclose behavioral traits like return value, success indicators, and side effects. It only says 'Create a new ad,' omitting what the tool returns (e.g., ad ID) and any auth or rate limits.

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 sentence, which is concise and front-loaded with the main action. However, for a tool with 18 parameters, it could be slightly more structured without being verbose.

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 complexity (18 parameters, no output schema), the description lacks completeness. It does not explain return values, prerequisites, or parameter interdependencies (e.g., budgetAmount and budgetType).

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 baseline is 3. The description adds no additional meaning beyond grouping parameters into 'targeting, budget, and creative details,' which is a high-level summary. No extra formatting or relationship details are provided.

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 clearly states the tool creates a new ad and specifies the aspects: targeting, budget, and creative details. It distinguishes from sibling tools like zernio_create_campaign (campaigns vs ads) and zernio_update_ad (create vs update).

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 use this tool versus alternatives (e.g., zernio_update_ad for existing ads) or prerequisites (e.g., valid ad account). The description does not mention exclusions or context.

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